TIDES AND SOLUNAR CHARTS Roche Harbor (San Juan Island)

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Enjoy to the max a well-planned fishing expedition in Roche Harbor (San Juan Island)

FISHING • FORECAST

weather

WEATHER ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

loading weather ...

cloud cover -%

precipitation -

Wind

Comes from

(

°)

Wind gust

Temperature

- °F

Maximum -° F

Minimum -° F

Wind chill -° F

Humidity

- %

Dew point -° F

Visibility

- mi.

Changes in pressure have a considerable influence on the activity of fish

Pressure
in

RISING

STABLE

FALLING

General Fishing Conditions:

VERY GOOD

GOOD

POOR

Fishing changes by pressure trend:

RISING

Very good.
Bite might slow as conditions stabilize

STABLE

Normal activity

FALLING

Good at first. Changing to poor

General Fishing Conditions:

VERY GOOD

GOOD

POOR

Rapidly fluctuating either way is indication of good fishing

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Coastal area forecast

ROCHE HARBOR (SAN JUAN ISLAND) COAST

Open water forecast

SEA NEAR ROCHE HARBOR (SAN JUAN ISLAND)

Atmospheric pressure (in)

12 am

2 am

4 am

6 am

8 am

10 am

12 pm

2 pm

4 pm

6 pm

8 pm

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12 am

JAN

WEATHER FORECAST

Coastal area

Open water

Coastal area

Open water

6 hours

1 hour

2 hours

3 hours

4 hours

5 hours

6 hours

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UV Index

Exposure level

low

moderate

high

very high

extreme

SOLAR PROTECTION MEASURES

1-2

NO PROTECTION

You can safely stay outside without sun protection measures.

3-5

6-7

PROTECTION REQUIRED

Wear T-shirt, cap and glasses.

Apply SPF 30+ sunscreen.

Stay in shade near midday when the sun is strongest.

8-10

11+

EXTRA PROTECTION

Wear T-shirt, cap and glasses.

Apply SPF 50+ sunscreen.

Stay in the shade as long as possible and avoid being outside during midday hours.

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WATER TEMPERATURE ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

Current Temperature air / water

JANUARY 18, 2025, 6:55 pm

Water temperature plays an important role in the behavior of fish. When the water is cold, fish are lethargic and inactive, and the same happens if the water is too hot.

At this moment the current water temperature in Roche Harbor (San Juan Island) is -. The average water temperature in Roche Harbor (San Juan Island) today is -.

Water temperature plays an important role in the behavior of fish. When the water is cold, fish are lethargic and inactive, and the same happens if the water is too hot.

DAILY EVOLUTION OF WATER TEMPERATURE IN ROCHE HARBOR (SAN JUAN ISLAND)

12 am

1 am

2 am

3 am

4 am

5 am

6 am

7 am

8 am

9 am

10 am

11 am

12 pm

1 pm

2 pm

3 pm

4 pm

5 pm

6 pm

7 pm

8 pm

9 pm

10 pm

11 pm

The effects of Water Temperature

Fish are cold blooded, which means their metabolism is strongly influenced by the temperature of their surrounding environment. Fish want to stay comfortable. Consequently, even a small change or break will cause fish to move from one location to another.

In general, this behavior varies for each species and place, so we can not specify an ideal water temperature, however as a general rule we will try to avoid the temperatures abnormally cold in summer and too warm in winter. Remember, look for the comfort zones and you will find the fish.

NOTICE

Our prediction algorithm for water temperature is in development phase. Although in most places we get a value very close to the actual sea water temperature, it may not be accurate in certain areas. Please, use with caution.

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SWELL ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

Current wave conditions

JANUARY 18, 2025, 6:55 pm

Wave direction - (-°)

Significant height -

Wave period -

Most frequent waves

The most frequent wave height will be about half the height of the significant wave.

Significant height

About 14% of waves will be higher than the significant wave height (about 1 in every 7 waves).

Maximum waves

It is normal to expect a wave of twice the height of the significant wave about 3 times in 24 hours.

This means at this moment you need to be prepared for a wave of - before heading out on the water.

Significant wave height

It is normal for waves to vary in height from one to the next. To give you an idea of the range of waves to expect at a given time, we consider the significant wave height as the average height of the highest third of the waves in the open sea.

The significant wave height provides an estimation of wave heights recorded by a trained observer from a fixed point at sea because we tend to pay more attention to the larger waves.

7:56 am

4:51 pm

height (ft)

12 am

2 am

4 am

6 am

8 am

10 am

12 pm

2 pm

4 pm

6 pm

8 pm

10 pm

12 am

SURF FORECAST IN ROCHE HARBOR (SAN JUAN ISLAND)

SWELL CHART

significant wave height

sunrise

sunset

SWELL TABLE

wave direction

significant wave height

wave period

We consider the waves in the open sea.

The waves you will find on the shore can be slightly affected by the orientation of the coastline and the seabed of the beaches, although in most cases they are usually equivalent.

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tides

HIGH TIDES AND LOW TIDES ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

high tide
7:14 pm

low tide
2:39 pm

rising

falling

Current status of water

JANUARY 18, 2025, 6:55 pm

The water level is rising. There are 18 minutes until high tide.

Today Saturday, 18^th of January of 2025, the sun rose in Roche Harbor (San Juan Island) at 7:56:45 am and sunset was at 4:51:08 pm. In the high tide and low tide chart, we can see that the first low tide was at 12:58 am and the next low tide at 2:39 pm. The first high tide was at 8:25 am and the next high tide will be at 7:14 pm.

The water level is rising. There are 18 minutes until high tide.

Today we had 8 hours and 54 minutes of sun. The solar transit was at 12:23:56 pm.

Remember that you can check the tides at your fishing point from your smartphone with Nautide, the tides4fishing app.

THE TIDES

How do tides form? What types of tides are there and how do they influence sport fishing?

7:56 am

4:51 pm

height (ft)

9.0

5.8

2.5

-0.8

-4.0

12:58 am

8:25 am

2:39 pm

7:14 pm

12 am

2 am

4 am

6 am

8 am

10 am

12 pm

2 pm

4 pm

6 pm

8 pm

10 pm

12 am

TIDES

high tide

low tide

SUN

sunrise

sunset

FISH ACTIVITY

very high activity

high activity

average activity

low activity

THE TIDES

How do tides form? What types of tides are there and how do they influence sport fishing?

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TIDAL COEFFICIENT ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

MORNING

AFTERNOON

Tidal coefficient

JANUARY 18, 2025

The tidal coefficient today is 67 (average). At noon the tidal coefficient drops to 63. The day ends with a tidal coefficient of 59.

The heights today are 0.6 ft, 8.2 ft, 4.6 ft and 5.5 ft referenced to Mean Lower Low Water (MLLW).

We can compare these levels with the maximum high tide recorded in the tide tables for Roche Harbor (San Juan Island) which is of 8.9 ft and a minimum height of -3.9 ft.

TIDAL COEFFICIENT

What is the tidal coefficient?

coef. 12:00 am

coef. 12:00 pm

coef. 12:00 am

max height 8.9 ft

min height -3.9 ft

height (ft)

9.0

5.8

2.5

-0.8

-4.0

12:58 am

0.6

8:25 am

8.2

2:39 pm

4.6

7:14 pm

5.5

12 am

2 am

4 am

6 am

8 am

10 am

12 pm

2 pm

4 pm

6 pm

8 pm

10 pm

12 am

TIDES

high tide

low tide

HEIGHT

high tide height

low tide height

maximum height

minimum height

TIDAL COEFFICIENT

tidal coefficient

TIDAL COEFFICIENT

What is the tidal coefficient?

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The following graph shows the progression of the tidal coefficient in the month of January of 2025.These values give us a rough idea of the tidal amplitude in Roche Harbor (San Juan Island), forecast in January.

Large coefficients indicate important high and low tides; major currents and movements usually take place on the sea bed. But bear in mind that this tidal amplitude may be greatly affected by the weather and you should also consult the weather forecast in Roche Harbor, the wind in Roche Harbor and the surf forecast in Roche Harbor before you go fishing.

BIG TIDES

When will the highest tides in 2025 be?

coefficient

120

100

COEFFICIENT

very high

high

average

low

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TIDE TABLE ROCHE HARBOR (SAN JUAN ISLAND)

JANUARY, 2025

January, 2025

TIDE TABLE ROCHE HARBOR (SAN JUAN ISLAND)

JANUARY, 2025

January, 2025

ROCHE HARBOR (SAN JUAN ISLAND) January, 2025
DAY		TIDES FOR ROCHE HARBOR (SAN JUAN ISLAND)					SOLUNAR ACTIVITY
		1^st TIDE	2^nd TIDE	3^rd TIDE	4^th TIDE	COEFFICIENT		SOLUNAR ACTIVITY
1 Wed	8:04 am 4:29 pm	7:22 am 8.6 ft	11:55 am 7.5 ft	3:46 pm 7.7 ft	11:45 pm -2.2 ft	81 high

2 Thu	8:04 am 4:30 pm	7:51 am 8.6 ft	12:45 pm 7.0 ft	4:45 pm 7.2 ft		80 high

3 Fri	8:04 am 4:31 pm	12:26 am -1.8 ft	8:20 am 8.6 ft	1:41 pm 6.3 ft	5:52 pm 6.5 ft	78 high

4 Sat	8:04 am 4:32 pm	1:08 am -1.0 ft	8:48 am 8.6 ft	2:42 pm 5.3 ft	7:08 pm 5.8 ft	74 high

5 Sun	8:04 am 4:33 pm	1:50 am 0.2 ft	9:17 am 8.6 ft	3:43 pm 4.0 ft	8:36 pm 5.2 ft	69 average

6 Mon	8:03 am 4:34 pm	2:33 am 1.8 ft	9:45 am 8.6 ft	4:41 pm 2.6 ft	10:23 pm 4.9 ft	63 average

7 Tue	8:03 am 4:35 pm	3:20 am 3.5 ft	10:14 am 8.6 ft	5:35 pm 1.2 ft		59 average

8 Wed	8:03 am 4:37 pm	12:52 am 5.3 ft	4:17 am 5.2 ft	10:44 am 8.5 ft	6:27 pm 0.0 ft	57 average

9 Thu	8:02 am 4:38 pm	2:47 am 6.4 ft	5:31 am 6.2 ft	11:17 am 8.4 ft	7:16 pm -1.1 ft	58 average

10 Fri	8:02 am 4:39 pm	3:51 am 7.4 ft	6:55 am 7.2 ft	11:55 am 8.3 ft	8:04 pm -1.8 ft	63 average

11 Sat	8:01 am 4:41 pm	4:38 am 8.2 ft	8:14 am 7.9 ft	12:41 pm 8.2 ft	8:51 pm -2.2 ft	70 high

12 Sun	8:01 am 4:42 pm	5:19 am 8.6 ft	9:23 am 7.9 ft	1:35 pm 8.0 ft	9:36 pm -2.3 ft	77 high

13 Mon	8:00 am 4:43 pm	5:57 am 8.8 ft	10:21 am 7.6 ft	2:32 pm 7.7 ft	10:20 pm -2.2 ft	81 high

14 Tue	7:59 am 4:45 pm	6:33 am 8.7 ft	11:13 am 7.2 ft	3:28 pm 7.4 ft	11:02 pm -1.8 ft	83 high

15 Wed	7:59 am 4:46 pm	7:06 am 8.6 ft	12:03 pm 6.6 ft	4:22 pm 7.1 ft	11:42 pm -1.2 ft	83 high

16 Thu	7:58 am 4:48 pm	7:36 am 8.5 ft	12:54 pm 6.0 ft	5:16 pm 6.6 ft		80 high

17 Fri	7:57 am 4:49 pm	12:21 am -0.4 ft	8:02 am 8.4 ft	1:47 pm 5.3 ft	6:12 pm 6.0 ft	74 high

18 Sat	7:56 am 4:51 pm	12:58 am 0.6 ft	8:25 am 8.2 ft	2:39 pm 4.6 ft	7:14 pm 5.5 ft	67 average

19 Sun	7:55 am 4:52 pm	1:34 am 1.8 ft	8:46 am 8.1 ft	3:30 pm 3.7 ft	8:26 pm 5.0 ft	59 average

20 Mon	7:54 am 4:54 pm	2:08 am 3.1 ft	9:06 am 8.0 ft	4:18 pm 2.9 ft	10:06 pm 4.8 ft	51 average

21 Tue	7:53 am 4:55 pm	2:42 am 4.5 ft	9:28 am 7.9 ft	5:05 pm 2.1 ft		42 low

22 Wed	7:52 am 4:57 pm	9:51 am 7.7 ft	5:50 pm 1.4 ft			36 low

23 Thu	7:51 am 4:58 pm	10:16 am 7.6 ft	6:35 pm 0.7 ft			35 low

24 Fri	7:50 am 5:00 pm	4:06 am 7.1 ft	6:28 am 6.9 ft	10:45 am 7.5 ft	7:19 pm 0.0 ft	39 low

25 Sat	7:49 am 5:01 pm	4:35 am 7.6 ft	8:08 am 7.4 ft	11:22 am 7.6 ft	8:02 pm -0.6 ft	47 low

26 Sun	7:48 am 5:03 pm	5:02 am 8.0 ft	9:10 am 7.9 ft	12:16 pm 8.1 ft	8:45 pm -1.1 ft	58 average

27 Mon	7:47 am 5:05 pm	5:28 am 8.2 ft	9:40 am 7.8 ft	1:17 pm 8.0 ft	9:26 pm -1.6 ft	69 average

28 Tue	7:46 am 5:06 pm	5:51 am 8.3 ft	10:10 am 7.5 ft	2:18 pm 7.5 ft	10:07 pm -2.0 ft	80 high

29 Wed	7:44 am 5:08 pm	6:13 am 8.3 ft	10:45 am 7.0 ft	3:16 pm 7.5 ft	10:47 pm -2.0 ft	89 high

30 Thu	7:43 am 5:09 pm	6:35 am 8.3 ft	11:26 am 6.3 ft	4:15 pm 7.3 ft	11:26 pm -1.6 ft	95 very high

31 Fri	7:42 am 5:11 pm	6:59 am 8.4 ft	12:12 pm 5.4 ft	5:18 pm 7.0 ft		97 very high

TIDES

high tide

low tide

SUN

sunrise

sunset

ACTIVITY

very high activity

high activity

average activity

low activity

Select a view:

TIDES

SOLUNAR

ROCHE HARBOR (SAN JUAN ISLAND) January, 2025
DAY	TIDES FOR ROCHE HARBOR (SAN JUAN ISLAND)
DAY	1^st TIDE	2^nd TIDE	3^rd TIDE	4^th TIDE	SOLUNAR ACTIVITY
1 Wed	7:22 am 8.6 ft	11:55 am 7.5 ft	3:46 pm 7.7 ft	11:45 pm -2.2 ft
1 Wed
2 Thu	7:51 am 8.6 ft	12:45 pm 7.0 ft	4:45 pm 7.2 ft
2 Thu
3 Fri	12:26 am -1.8 ft	8:20 am 8.6 ft	1:41 pm 6.3 ft	5:52 pm 6.5 ft
3 Fri
4 Sat	1:08 am -1.0 ft	8:48 am 8.6 ft	2:42 pm 5.3 ft	7:08 pm 5.8 ft
4 Sat
5 Sun	1:50 am 0.2 ft	9:17 am 8.6 ft	3:43 pm 4.0 ft	8:36 pm 5.2 ft
5 Sun
6 Mon	2:33 am 1.8 ft	9:45 am 8.6 ft	4:41 pm 2.6 ft	10:23 pm 4.9 ft
6 Mon
7 Tue	3:20 am 3.5 ft	10:14 am 8.6 ft	5:35 pm 1.2 ft
7 Tue
8 Wed	12:52 am 5.3 ft	4:17 am 5.2 ft	10:44 am 8.5 ft	6:27 pm 0.0 ft
8 Wed
9 Thu	2:47 am 6.4 ft	5:31 am 6.2 ft	11:17 am 8.4 ft	7:16 pm -1.1 ft
9 Thu
10 Fri	3:51 am 7.4 ft	6:55 am 7.2 ft	11:55 am 8.3 ft	8:04 pm -1.8 ft
10 Fri
11 Sat	4:38 am 8.2 ft	8:14 am 7.9 ft	12:41 pm 8.2 ft	8:51 pm -2.2 ft
11 Sat
12 Sun	5:19 am 8.6 ft	9:23 am 7.9 ft	1:35 pm 8.0 ft	9:36 pm -2.3 ft
12 Sun
13 Mon	5:57 am 8.8 ft	10:21 am 7.6 ft	2:32 pm 7.7 ft	10:20 pm -2.2 ft
13 Mon
14 Tue	6:33 am 8.7 ft	11:13 am 7.2 ft	3:28 pm 7.4 ft	11:02 pm -1.8 ft
14 Tue
15 Wed	7:06 am 8.6 ft	12:03 pm 6.6 ft	4:22 pm 7.1 ft	11:42 pm -1.2 ft
15 Wed
16 Thu	7:36 am 8.5 ft	12:54 pm 6.0 ft	5:16 pm 6.6 ft
16 Thu
17 Fri	12:21 am -0.4 ft	8:02 am 8.4 ft	1:47 pm 5.3 ft	6:12 pm 6.0 ft
17 Fri
18 Sat	12:58 am 0.6 ft	8:25 am 8.2 ft	2:39 pm 4.6 ft	7:14 pm 5.5 ft
18 Sat
19 Sun	1:34 am 1.8 ft	8:46 am 8.1 ft	3:30 pm 3.7 ft	8:26 pm 5.0 ft
19 Sun
20 Mon	2:08 am 3.1 ft	9:06 am 8.0 ft	4:18 pm 2.9 ft	10:06 pm 4.8 ft
20 Mon
21 Tue	2:42 am 4.5 ft	9:28 am 7.9 ft	5:05 pm 2.1 ft
21 Tue
22 Wed	9:51 am 7.7 ft	5:50 pm 1.4 ft
22 Wed
23 Thu	10:16 am 7.6 ft	6:35 pm 0.7 ft
23 Thu
24 Fri	4:06 am 7.1 ft	6:28 am 6.9 ft	10:45 am 7.5 ft	7:19 pm 0.0 ft
24 Fri
25 Sat	4:35 am 7.6 ft	8:08 am 7.4 ft	11:22 am 7.6 ft	8:02 pm -0.6 ft
25 Sat
26 Sun	5:02 am 8.0 ft	9:10 am 7.9 ft	12:16 pm 8.1 ft	8:45 pm -1.1 ft
26 Sun
27 Mon	5:28 am 8.2 ft	9:40 am 7.8 ft	1:17 pm 8.0 ft	9:26 pm -1.6 ft
27 Mon
28 Tue	5:51 am 8.3 ft	10:10 am 7.5 ft	2:18 pm 7.5 ft	10:07 pm -2.0 ft
28 Tue
29 Wed	6:13 am 8.3 ft	10:45 am 7.0 ft	3:16 pm 7.5 ft	10:47 pm -2.0 ft
29 Wed
30 Thu	6:35 am 8.3 ft	11:26 am 6.3 ft	4:15 pm 7.3 ft	11:26 pm -1.6 ft
30 Thu
31 Fri	6:59 am 8.4 ft	12:12 pm 5.4 ft	5:18 pm 7.0 ft
31 Fri

ROCHE HARBOR (SAN JUAN ISLAND) January, 2025
DAY		COEFFICIENT	SOLUNAR ACTIVITY
1 Wed	8:04 am 4:29 pm	81 high

2 Thu	8:04 am 4:30 pm	80 high

3 Fri	8:04 am 4:31 pm	78 high

4 Sat	8:04 am 4:32 pm	74 high

5 Sun	8:04 am 4:33 pm	69 average

6 Mon	8:03 am 4:34 pm	63 average

7 Tue	8:03 am 4:35 pm	59 average

8 Wed	8:03 am 4:37 pm	57 average

9 Thu	8:02 am 4:38 pm	58 average

10 Fri	8:02 am 4:39 pm	63 average

11 Sat	8:01 am 4:41 pm	70 high

12 Sun	8:01 am 4:42 pm	77 high

13 Mon	8:00 am 4:43 pm	81 high

14 Tue	7:59 am 4:45 pm	83 high

15 Wed	7:59 am 4:46 pm	83 high

16 Thu	7:58 am 4:48 pm	80 high

17 Fri	7:57 am 4:49 pm	74 high

18 Sat	7:56 am 4:51 pm	67 average

19 Sun	7:55 am 4:52 pm	59 average

20 Mon	7:54 am 4:54 pm	51 average

21 Tue	7:53 am 4:55 pm	42 low

22 Wed	7:52 am 4:57 pm	36 low

23 Thu	7:51 am 4:58 pm	35 low

24 Fri	7:50 am 5:00 pm	39 low

25 Sat	7:49 am 5:01 pm	47 low

26 Sun	7:48 am 5:03 pm	58 average

27 Mon	7:47 am 5:05 pm	69 average

28 Tue	7:46 am 5:06 pm	80 high

29 Wed	7:44 am 5:08 pm	89 high

30 Thu	7:43 am 5:09 pm	95 very high

31 Fri	7:42 am 5:11 pm	97 very high

print table

IMPORTANT NOTICE

JANUARY, 2025

IMPORTANT NOTICE

The times reflected in the tidal table for Roche Harbor (San Juan Island) are predictions valid as references for sports fishing in areas near the coast of Roche Harbor (San Juan Island). THEY ARE NOT SUITABLE FOR NAVIGATION. Remember that to practice any activity at sea like diving, windsurfing and fishing from a boat or underwater fishing should always be consulted with the official tide tables of the port of Roche Harbor (San Juan Island). + info

TIDES

high tide

low tide

SUN

sunrise

sunset

ACTIVITY

very high activity

high activity

average activity

low activity

All the times are generated in local time in Washington and the daylight saving time change has also been borne in mind for your convenience, so you don't need to add or subtract anything.

The heights are expressed in feet referenced to Mean Lower Low Water (MLLW). It is the average of the lower low water height of each tidal day observed over the official time segment over which tide observations are taken and reduced to obtain mean value.

You can change the time format and the default unit for height in the display settings.

Press any day in the tide table to load all the information.

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solunar

MOONRISE AND MOONSET ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

The moon set at 10:12 am at 273° west. Eventually, the moon will rise again in the east (91°) at 10:26 pm.

The lunar transit is the time at which the moon crosses the local meridian (Roche Harbor (San Juan Island), 123.2° W) at 3:45 am.

LUNAR CALENDAR

Moonrise and moonset in Roche Harbor (San Juan Island) for the entire 2025

The length of time the moon will be visible is 11 hours and 46 minutes.

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SOLUNAR ACTIVITY ROCHE HARBOR (SAN JUAN ISLAND)

TODAY, SATURDAY, JANUARY 18, 2025

SOLUNAR ACTIVITY: AVERAGE

According to the solunar theory, today is an average day for fishing, the fish activity forecast is average.

The best times of day for fishing are:

MAJOR PERIODS

HIGH ACTIVITY

from 2:45 am to 4:45 am

Lunar transit (moon up)

HIGH ACTIVITY

from 3:19 pm to 5:19 pm

Opposing lunar transit (moon down)

This period also coincides with sunset; therefore the sun will exercise more influence, possibly obtaining greater activity than expected.

MINOR PERIODS

AVERAGE ACTIVITY

from 9:42 am to 10:42 am

Moonset

AVERAGE ACTIVITY

from 9:56 pm to 10:56 pm

Moonrise

SOLUNAR THEORY

The effects of the sun and the moon influence the activity of all living creatures on earth

4:45 am

2:45 am

10:42 am

9:42 am

5:19 pm

3:19 pm

10:56 pm

9:56 pm

SUN

sunrise

sunset

MOON

moonrise

moonset

SOLUNAR ACTIVITY

very high activity

high activity

average activity

low activity

OUTSTANDING PERIODS

best periods of the year

The solunar periods indicate the best times of day for fishing in Roche Harbor (San Juan Island). The major periods correspond to the lunar transit (passage of the moon over the meridian) and the opposing lunar transit and last approximately 2 hours. The minor periods begin with the rising and setting of the moon and its duration is approximately 1 hour.

When the solunar period coincides with sunrise or sunset, we can expect more activity than initially planned. These peak periods are reflected in green. We additionally point out in the chart the periods of greatest activity during the year with a big blue fish on the period bar + info