Roche Harbor, San Juan Island tide chart
Washington · near Friday Harbor (8 mi) · NOAA station 9449834 · times in local time (PDT)
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Tides today, Sunday, October 11
- High 6:41 AM 7.1 ft
- Low 11:39 AM 4.3 ft
- High 5:21 PM 7.4 ft
Were today's predicted times right where you were?
Sunrise 7:27 AM · Sunset 6:33 PM · New moon (0%)
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Fishing forecast
Hour by hour at Roche Harbor, San Juan IslandBest times
1:00 AM–2:00 AM and 6:00 PM–7:00 PM
New moon (0% lit)
Rain radar
Biting around here in October
- Coho salmon In seasonNearshore and bays on the incoming tide
- Rockfish In seasonJetties and reefs, slower tides
General seasonal guide for Pacific Northwest. Seasons, sizes and limits vary, so check your state rules before keeping fish.
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Weather and conditions at Roche Harbor, San Juan Island
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Marine forecast: Northern Inland Waters Including The San Juan Islands
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- Water temperature —
- Nearest weather buoy NEW DUNGENESS - 17 NM NE of Port Angeles, WA (19 mi): waves, wind and water temperature
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.525 MHz WX7 KAD93, H Street - Blaine Area, WA (35 mi)
- 162.425 MHz WX4 WWG24, Puget Sound Marine, WA (42 mi)
To get alerts on a weather alert radio, program county code 053055 (San Juan).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Recent reports
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | H 6:41 AM 7.1 ftL 11:39 AM 4.3 ftH 5:21 PM 7.4 ft | 7:27 AM / 6:33 PM | New moon (0%) |
| Mon Oct 12 | L 12:05 AM -0.4 ftH 7:34 AM 7.3 ftL 12:24 PM 5.2 ftH 5:42 PM 7.2 ft | 7:29 AM / 6:31 PM | New moon (2%) |
| Tue Oct 13 | L 12:39 AM -0.8 ftH 8:27 AM 7.5 ftL 1:14 PM 5.9 ftH 6:04 PM 7.0 ft | 7:30 AM / 6:29 PM | Waxing crescent (6%) |
| Wed Oct 14 | L 1:15 AM -0.9 ftH 9:23 AM 7.5 ftL 2:12 PM 6.4 ftH 6:28 PM 6.7 ft | 7:32 AM / 6:27 PM | Waxing crescent (13%) |
| Thu Oct 15 | L 1:55 AM -0.7 ftH 10:23 AM 7.5 ftL 3:29 PM 6.7 ftH 6:51 PM 6.4 ft | 7:33 AM / 6:25 PM | Waxing crescent (20%) |
| Fri Oct 16 | L 2:39 AM -0.3 ftH 11:31 AM 7.4 ft | 7:35 AM / 6:23 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 3:29 AM 0.2 ftH 12:37 PM 7.4 ft | 7:36 AM / 6:21 PM | First quarter (40%) |
Tidal currents near Roche Harbor, San Juan Island
From NOAA's current predictions for Spieden Channel, north of Limestone Point at 47 ft depth, 2.3 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the E (85°) and the ebb toward the W (281°). The strongest current this week is 3.9 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 1:05 AMFlood 3:47 AM 3.3 knSlack 6:31 AMEbb 9:39 AM 2.9 knSlack 1:13 PMFlood 3:25 PM 1.8 knSlack 5:32 PMEbb 9:26 PM 3.9 kn |
| Mon Oct 12 | Slack 1:36 AMFlood 4:24 AM 3.4 knSlack 7:17 AMEbb 10:19 AM 2.6 knSlack 1:55 PMFlood 3:53 PM 1.3 knSlack 5:46 PMEbb 9:45 PM 3.9 kn |
| Tue Oct 13 | Slack 2:05 AMFlood 4:58 AM 3.2 knSlack 8:01 AMEbb 10:57 AM 2.3 knSlack 2:38 PMFlood 4:21 PM 0.8 knSlack 5:55 PMEbb 10:08 PM 3.7 kn |
| Wed Oct 14 | Slack 2:36 AMFlood 5:32 AM 3.0 knSlack 8:42 AMEbb 11:33 AM 2.0 knSlack 3:24 PMFlood 4:48 PM 0.5 knSlack 6:03 PMEbb 10:37 PM 3.4 kn |
| Thu Oct 15 | Slack 3:09 AMFlood 6:06 AM 2.5 knSlack 9:20 AMEbb 12:10 PM 1.7 knSlack 4:17 PMFlood 5:16 PM 0.2 knSlack 6:08 PMEbb 11:13 PM 3.0 kn |
| Fri Oct 16 | Slack 3:50 AMFlood 6:44 AM 2.0 knSlack 9:57 AMEbb 12:50 PM 1.5 knSlack 5:46 PMEbb 11:58 PM 2.5 kn |
| Sat Oct 17 | Slack 4:42 AMFlood 7:28 AM 1.4 knSlack 10:39 AMEbb 1:45 PM 1.3 knEbb 6:22 PM 0.3 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Roche Harbor, San Juan Island
The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.
| Day | Bite score | Best times | Major periods | Minor periods |
|---|---|---|---|---|
| Sun Oct 11 | 85 · Excellent | 1:00 AM–2:00 AM, 6:00 PM–7:00 PM | 12:30 AM–2:30 AM, 12:53 PM–2:53 PM | 8:32 AM–9:32 AM, 6:04 PM–7:04 PM |
| Mon Oct 12 | 73 · Good | 2:00 AM–3:00 AM | 1:16 AM–3:16 AM, 1:40 PM–3:40 PM | 9:45 AM–10:45 AM, 6:26 PM–7:26 PM |
| Tue Oct 13 | 67 · Good | 3:00 AM–4:00 AM | 2:04 AM–4:04 AM, 2:28 PM–4:28 PM | 10:56 AM–11:56 AM, 6:54 PM–7:54 PM |
| Wed Oct 14 | 55 · Good | 3:00 AM–5:00 AM | 2:53 AM–4:53 AM, 3:18 PM–5:18 PM | 12:02 PM–1:02 PM, 7:31 PM–8:31 PM |
| Thu Oct 15 | 48 · Fair | 4:00 AM–6:00 AM | 3:44 AM–5:44 AM, 4:09 PM–6:09 PM | 1:00 PM–2:00 PM, 8:18 PM–9:18 PM |
| Fri Oct 16 | 56 · Good | 5:00 PM–7:00 PM, 5:00 AM–6:00 AM | 4:34 AM–6:34 AM, 5:00 PM–7:00 PM | 1:48 PM–2:48 PM, 9:15 PM–10:15 PM |
| Sat Oct 17 | 59 · Good | 6:00 AM–7:00 AM, 6:00 PM–7:00 PM | 5:25 AM–7:25 AM, 5:49 PM–7:49 PM | 2:24 PM–3:24 PM, 10:20 PM–11:20 PM |
A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 2.4 ft at 8:22 AM on Thursday, October 22
- 2.9 ft at 9:06 AM on Friday, October 23
- 3.6 ft at 9:47 AM on Saturday, October 24
- 4.3 ft at 11:39 AM on Sunday, October 11
- 5.2 ft at 12:24 PM on Monday, October 12
- 5.9 ft at 1:14 PM on Tuesday, October 13
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | H 6:41 AM 7.1 ftL 11:39 AM 4.3 ftH 5:21 PM 7.4 ft | 7:27 AM / 6:33 PM |
| Mon Oct 12 | L 12:05 AM -0.4 ftH 7:34 AM 7.3 ftL 12:24 PM 5.2 ftH 5:42 PM 7.2 ft | 7:29 AM / 6:31 PM |
| Tue Oct 13 | L 12:39 AM -0.8 ftH 8:27 AM 7.5 ftL 1:14 PM 5.9 ftH 6:04 PM 7.0 ft | 7:30 AM / 6:29 PM |
| Wed Oct 14 | L 1:15 AM -0.9 ftH 9:23 AM 7.5 ftL 2:12 PM 6.4 ftH 6:28 PM 6.7 ft | 7:32 AM / 6:27 PM |
| Thu Oct 15 | L 1:55 AM -0.7 ftH 10:23 AM 7.5 ftL 3:29 PM 6.7 ftH 6:51 PM 6.4 ft | 7:33 AM / 6:25 PM |
| Fri Oct 16 | L 2:39 AM -0.3 ftH 11:31 AM 7.4 ft | 7:35 AM / 6:23 PM |
| Sat Oct 17 | L 3:29 AM 0.2 ftH 12:37 PM 7.4 ft | 7:36 AM / 6:21 PM |
| Sun Oct 18 | L 4:26 AM 0.7 ftH 1:32 PM 7.4 ft | 7:38 AM / 6:19 PM |
| Mon Oct 19 | L 5:30 AM 1.2 ftH 2:13 PM 7.4 ftL 9:09 PM 5.5 ftH 11:10 PM 5.1 ft | 7:39 AM / 6:17 PM |
| Tue Oct 20 | L 6:34 AM 1.6 ftH 2:41 PM 7.4 ftL 9:16 PM 4.8 ft | 7:41 AM / 6:15 PM |
| Wed Oct 21 | H 12:42 AM 5.1 ftL 7:32 AM 1.9 ftH 3:00 PM 7.4 ftL 9:24 PM 4.0 ft | 7:42 AM / 6:13 PM |
| Thu Oct 22 | H 2:09 AM 5.3 ftL 8:22 AM 2.4 ftH 3:15 PM 7.4 ftL 9:40 PM 3.0 ft | 7:44 AM / 6:11 PM |
| Fri Oct 23 | H 3:25 AM 5.7 ftL 9:06 AM 2.9 ftH 3:31 PM 7.5 ftL 10:02 PM 1.7 ft | 7:45 AM / 6:10 PM |
| Sat Oct 24 | H 4:30 AM 6.3 ftL 9:47 AM 3.6 ftH 3:51 PM 7.5 ftL 10:30 PM 0.4 ft | 7:47 AM / 6:08 PM |
| Sun Oct 25 | H 5:28 AM 6.9 ftL 10:28 AM 4.4 ftH 4:13 PM 7.7 ftL 11:02 PM -0.9 ft | 7:49 AM / 6:06 PM |
| Mon Oct 26 | H 6:23 AM 7.4 ftL 11:10 AM 5.2 ftH 4:38 PM 7.7 ftL 11:39 PM -1.9 ft | 7:50 AM / 6:04 PM |
| Tue Oct 27 | H 7:17 AM 7.8 ftL 11:54 AM 6.0 ftH 5:04 PM 7.7 ft | 7:52 AM / 6:02 PM |
| Wed Oct 28 | L 12:20 AM -2.5 ftH 8:14 AM 8.1 ftL 12:43 PM 6.7 ftH 5:33 PM 7.7 ft | 7:53 AM / 6:01 PM |
| Thu Oct 29 | L 1:06 AM -2.7 ftH 9:14 AM 8.1 ftL 1:40 PM 7.1 ftH 6:04 PM 7.5 ft | 7:55 AM / 5:59 PM |
| Fri Oct 30 | L 1:56 AM -2.5 ftH 10:18 AM 8.1 ftL 2:51 PM 7.3 ftH 6:39 PM 7.1 ft | 7:56 AM / 5:57 PM |
| Sat Oct 31 | L 2:51 AM -2.0 ftH 11:23 AM 8.1 ftL 4:33 PM 7.1 ftH 7:31 PM 6.6 ft | 7:58 AM / 5:56 PM |
| Sun Nov 1 | L 2:50 AM -1.1 ftH 11:22 AM 8.0 ftL 6:31 PM 6.4 ftH 8:13 PM 5.9 ft | 7:00 AM / 4:54 PM |
| Mon Nov 2 | L 3:54 AM -0.1 ftH 12:12 PM 8.0 ftL 7:14 PM 5.3 ftH 10:05 PM 5.3 ft | 7:01 AM / 4:52 PM |
| Tue Nov 3 | L 5:01 AM 0.9 ftH 12:52 PM 8.0 ftL 7:47 PM 4.1 ft | 7:03 AM / 4:51 PM |
| Wed Nov 4 | H 12:07 AM 5.1 ftL 6:06 AM 2.0 ftH 1:26 PM 8.0 ftL 8:16 PM 2.8 ft | 7:04 AM / 4:49 PM |
| Thu Nov 5 | H 1:56 AM 5.5 ftL 7:06 AM 3.0 ftH 1:53 PM 7.9 ftL 8:43 PM 1.6 ft | 7:06 AM / 4:48 PM |
| Fri Nov 6 | H 3:16 AM 6.1 ftL 8:01 AM 4.1 ftH 2:15 PM 7.8 ftL 9:09 PM 0.5 ft | 7:08 AM / 4:46 PM |
| Sat Nov 7 | H 4:20 AM 6.8 ftL 8:51 AM 5.0 ftH 2:34 PM 7.7 ftL 9:37 PM -0.4 ft | 7:09 AM / 4:45 PM |
| Sun Nov 8 | H 5:13 AM 7.4 ftL 9:40 AM 5.8 ftH 2:52 PM 7.5 ftL 10:05 PM -1.1 ft | 7:11 AM / 4:43 PM |
| Mon Nov 9 | H 6:01 AM 7.8 ftL 10:28 AM 6.4 ftH 3:12 PM 7.4 ftL 10:35 PM -1.4 ft | 7:12 AM / 4:42 PM |
| Tue Nov 10 | H 6:46 AM 8.1 ftL 11:19 AM 6.9 ftH 3:35 PM 7.2 ftL 11:08 PM -1.5 ft | 7:14 AM / 4:41 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
Around Roche Harbor, San Juan Island
Beaches
- Haida Canoe Cove 3.9 mi
- Madrona Beach 4.0 mi
- The Landing 4.1 mi
- Cottonwood Cove 4.2 mi
Marinas
- Roche Harbor 0.1 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
Fish in the waters around Roche Harbor, San Juan Island
40 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often North Pacific Spiny Dogfish, Pacific Herring, Walleye Pollock. The bar shows how many records each has.
- North Pacific Spiny Dogfish Squalus suckleyiSalt water · 1078 records
- Pacific Herring Clupea pallasiiSalt water · 448 records
- Walleye Pollock Gadus chalcogrammusSalt water · 200 records
- Rex Sole Glyptocephalus zachirusSalt water · 130 records
- Dover Sole Microstomus pacificusSalt water · 119 records
- English Sole Parophrys vetulusSalt water · 105 records
- Northern Sculpin Icelinus borealisSalt water · 96 records
- Spinyhead Sculpin Dasycottus setigerSalt water · 73 records
- Pacific Sanddab Citharichthys sordidusSalt water · 68 records
- Eulachon Thaleichthys pacificusSalt water · 66 records
- Snake Prickleback Lumpenus sagittaSalt water · 62 records
- Big Skate Beringraja binoculataSalt water · 62 records
- Slender Sole Lyopsetta exilisSalt water · 59 records
- Shiner Perch Cymatogaster aggregataSalt water · 58 records
- Northern Spearnose Poacher Agonopsis vulsaSalt water · 58 records
- Gray Starsnout Bathyagonus alascanusSalt water · 53 records
- Tidepool Sculpin Oligocottus maculosusSalt water · 50 records
- Saddleback Gunnel Pholis ornataSalt water · 50 records
- Marbled Snailfish Liparis dennyiSalt water · 48 records
- Coho Salmon Oncorhynchus kisutchSalt water · 48 records
- High Cockscomb Anoplarchus purpurescensSalt water · 46 records
- Crescent Gunnel Pholis laetaSalt water · 46 records
- Pacific Tomcod Microgadus proximusSalt water · 44 records
- Pacific Sand Lance Ammodytes hexapterusSalt water · 43 records
- Showy Snailfish Liparis pulchellusSalt water · 42 records
- Pacific Staghorn Sculpin Leptocottus armatusSalt water · 40 records
- Great Sculpin Myoxocephalus polyacanthocephalusSalt water · 36 records
- Penpoint Gunnel Apodichthys flavidusSalt water · 36 records
- Blackbelly Eelpout Lycodes pacificusSalt water · 36 records
- Daubed Shanny Leptoclinus maculatusSalt water · 34 records
- Silverspotted Sculpin Blepsias cirrhosusSalt water · 33 records
- Arrowtooth Flounder Atheresthes stomiasSalt water · 29 records
- Lingcod Ophiodon elongatusSalt water · 28 records
- Black Prickleback Xiphister atropurpureusSalt water · 28 records
- Sturgeon Poacher Podothecus accipenserinusSalt water · 27 records
- Northern Clingfish Gobiesox maeandricusSalt water · 27 records
- Tadpole Sculpin Psychrolutes paradoxusSalt water · 26 records
- Padded Sculpin Artedius fenestralisSalt water · 25 records
- Quillback Rockfish Sebastes maligerSalt water · 25 records
- Starry Flounder Platichthys stellatusSalt water · 25 records
Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.
About the tides at Roche Harbor, San Juan Island
Roche Harbor, San Juan Island gets two high tides and two low tides most days, but one high is clearly higher than the other (and one low clearly lower), which is called a mixed tide. Over the next month the water typically rises or falls about 4.7 ft between a high and the next low.
The biggest swings in this window come around Thursday, October 29, when the day's range reaches 10.9 ft, and again around Tuesday, November 10 (9.6 ft). Here the biggest ranges depend on the moon's phase and on how far north or south of the equator it is, so they don't always line up with the new and full moon. The calmest day is Thursday, October 22, with only 5.0 ft between the day's highest and lowest water.
The lowest tide of the month is -2.7 ft at 1:06 AM on Thursday, October 29. There are 17 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 8.1 ft at 9:14 AM on Thursday, October 29. Onshore wind or a storm can push the real water level above that.
This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.
Station details
- NOAA station ID: 9449834
- Type: subordinate (adjusted from a reference station)
- Location: 48.6100, -123.1550
Reference station: Port Townsend.