TidalMap

Friday Harbor, San Juan Island Tide Times

Washington · Station 9449880 · live gauge · Updated Aug 5, 2026

Friday Harbor, San Juan Island runs a mean tidal range of about 4.6 ft. This month the highest water, 8.0 ft, comes on the evening of Aug 7, and the lowest, a -2.3 ft minus tide, on the morning of Aug 11.

Predictedno live gauge

Next low tide 4.6 ft at 3:14 PM

Predicted

Monthly tide calendar

Flood & low finder Flood tide ≥ ft Low tide ≤ ft

🌊 Biggest flood tides at Friday Harbor, San Juan Island this month: Aug 5, Aug 6, Aug 7, Aug 8, Aug 9, Aug 10, Aug 11, Aug 12, Aug 13, Aug 14. These spring highs push water up into the grass and over the oyster rock — prime for poling into flooded marsh for tailing reds.

🔻 Negative (minus) low tides at Friday Harbor, San Juan Island this month: Aug 1, Aug 7, Aug 8, Aug 9, Aug 10, Aug 11, Aug 12, Aug 13, Aug 14, Aug 24, Aug 25, Aug 26 …. These drain the flats and expose the oyster rock — prime for sight-fishing and clamming.

August 2026

Sun

Mon

Tue

Wed

Thu

Fri

Sat

1L:5.0H:5.9L:-0.1H:7.6

2L:4.1H:5.4L:0.8H:7.6

3L:3.1H:5.0L:2.0H:7.6

4L:2.1H:4.8L:3.3H:7.7

5🌗L:1.0H:5.0L:4.6H:7.8

6🌗L:0.1H:7.9

7🌗L:-0.7H:8.0

8L:-1.4H:7.4L:7.3H:8.0

9L:-1.9H:7.8L:7.3

10H:7.9L:-2.2H:7.9L:6.9

11H:7.7L:-2.3H:8.0L:6.3

12🌑H:7.4L:-2.0H:7.9L:5.5

13🌑H:7.0L:-1.4H:7.8

14🌑L:4.6H:6.5L:-0.5H:7.7

15🌑L:3.6H:6.0L:0.7H:7.6

16L:2.7H:5.6L:2.0H:7.5

17L:1.9H:5.4L:3.3H:7.4

18L:1.2H:5.4L:4.6H:7.2

19🌓L:0.8H:5.8L:5.6H:7.1

20🌓L:0.5H:6.5L:6.3H:6.9

21🌓L:0.3H:7.0L:6.6H:6.7

22🌓L:0.2H:7.3

23L:0.0H:7.4L:6.4

24H:6.5L:-0.2H:7.4L:6.1

25H:6.4L:-0.3H:7.3L:5.8

26H:6.4L:-0.4H:7.2L:5.3

27🌕H:6.3L:-0.2H:7.2L:4.7

28🌕H:6.2L:0.2H:7.2

29🌕L:3.9H:6.1L:0.8H:7.2

30L:3.0H:6.0L:1.7H:7.2

31L:2.0H:5.9L:2.8H:7.3

Best fishing times (solunar)

Major and minor solunar windows for Friday Harbor, San Juan Island — peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).

Day	Major windows	Minor windows	Score
Today 🌗	5:30–7:30 AM 5:55–7:55 PM	10:20–12:20 AM 1:25–3:25 PM	33
Thu Aug 6 🌗	6:26–8:26 AM 6:51–8:51 PM	10:55–12:55 AM 2:50–4:50 PM	42
Fri Aug 7 🌗	7:27–9:27 AM 7:52–9:52 PM	— 4:11–6:11 PM	55
Sat Aug 8 🌘	8:31–10:31 AM 8:56–10:56 PM	11:42–1:42 AM 5:22–7:22 PM	67
Sun Aug 9 🌘	9:35–11:35 AM 10:00–12:00 AM	12:46–2:46 AM 6:16–8:16 PM	78
Mon Aug 10 🌘	10:38–12:38 PM 11:03–1:03 AM	2:04–4:04 AM 6:56–8:56 PM	86
Tue Aug 11 🌘	11:36–1:36 PM 12:01–2:01 AM	3:28–5:28 AM 7:25–9:25 PM	92

Predictions & observations: NOAA CO-OPS station 9449880. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.

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