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Roche Harbor, San Juan Island tide chart and tide times
Washington · NOAA station 9449834
On Monday, October 5, high tide at Roche Harbor, San Juan Island is at 2:53 PM (7.6 ft), and low tide is at 6:35 AM (-0.2 ft) and 8:55 PM (5.6 ft). Times are local; heights are in feet above mean lower low water (MLLW), the datum used on U.S. charts — a negative height means the water drops below that level.
High and low tides for the next 8 days
| Tide | Time | Height |
|---|---|---|
| Monday, October 5 🌗 Last QuarterSunrise 7:18 AM · Sunset 6:42 PM · Moonrise 1:07 AM · Moonset 4:47 PM | ||
| Low tide | 6:35 AM | -0.2 ft |
| High tide | 2:53 PM | 7.6 ft |
| Low tide | 8:55 PM | 5.6 ft |
| Tuesday, October 6 🌘 Waning CrescentSunrise 7:19 AM · Sunset 6:40 PM · Moonrise 2:30 AM · Moonset 5:07 PM | ||
| High tide | 12:32 AM | 5.8 ft |
| Low tide | 7:43 AM | 0.3 ft |
| High tide | 3:29 PM | 7.7 ft |
| Low tide | 9:27 PM | 4.6 ft |
| Wednesday, October 7 🌘 Waning CrescentSunrise 7:21 AM · Sunset 6:38 PM · Moonrise 3:50 AM · Moonset 5:24 PM | ||
| High tide | 2:11 AM | 5.8 ft |
| Low tide | 8:41 AM | 0.9 ft |
| High tide | 3:59 PM | 7.7 ft |
| Low tide | 9:58 PM | 3.4 ft |
| Thursday, October 8 🌘 Waning CrescentSunrise 7:22 AM · Sunset 6:36 PM · Moonrise 5:08 AM · Moonset 5:40 PM | ||
| High tide | 3:36 AM | 6.1 ft |
| Low tide | 9:31 AM | 1.6 ft |
| High tide | 4:24 PM | 7.6 ft |
| Low tide | 10:29 PM | 2.3 ft |
| Friday, October 9 🌘 Waning CrescentSunrise 7:24 AM · Sunset 6:34 PM · Moonrise 6:23 AM · Moonset 5:55 PM | ||
| High tide | 4:46 AM | 6.4 ft |
| Low tide | 10:15 AM | 2.5 ft |
| High tide | 4:45 PM | 7.6 ft |
| Low tide | 11:00 PM | 1.2 ft |
| Saturday, October 10 🌑 New MoonSunrise 7:25 AM · Sunset 6:32 PM · Moonrise 7:38 AM · Moonset 6:11 PM | ||
| High tide | 5:46 AM | 6.8 ft |
| Low tide | 10:57 AM | 3.4 ft |
| High tide | 5:03 PM | 7.5 ft |
| Low tide | 11:32 PM | 0.3 ft |
| Sunday, October 11 🌑 New MoonSunrise 7:27 AM · Sunset 6:30 PM · Moonrise 8:53 AM · Moonset 6:30 PM | ||
| High tide | 6:41 AM | 7.1 ft |
| Low tide | 11:39 AM | 4.3 ft |
| High tide | 5:21 PM | 7.4 ft |
| Monday, October 12 🌑 New MoonSunrise 7:28 AM · Sunset 6:28 PM · Moonrise 10:07 AM · Moonset 6:52 PM | ||
| Low tide | 12:05 AM | -0.4 ft |
| High tide | 7:34 AM | 7.3 ft |
| Low tide | 12:24 PM | 5.2 ft |
| High tide | 5:42 PM | 7.2 ft |
Best fishing times at Roche Harbor, San Juan Island (solunar table)
Major periods, about two hours each, are centered on the moon passing overhead or underfoot. Minor periods, about an hour, are centered on moonrise and moonset. By solunar tradition the days around the new and full moon are the strongest, and many anglers plan for a major period that falls on a moving tide.
| Day | Major periods | Minor periods |
|---|---|---|
| Mon, Oct 5 🌗 Last Quarter · Fair | 8:06 AM–10:06 AM 8:33 PM–10:33 PM | 12:37 AM–1:37 AM 4:17 PM–5:17 PM |
| Tue, Oct 6 🌘 Waning Crescent · Good | 8:58 AM–10:58 AM 9:22 PM–11:22 PM | 2:00 AM–3:00 AM 4:37 PM–5:37 PM |
| Wed, Oct 7 🌘 Waning Crescent · Good | 9:46 AM–11:46 AM 10:09 PM–12:09 AM | 3:20 AM–4:20 AM 4:54 PM–5:54 PM |
| Thu, Oct 8 🌘 Waning Crescent · Good | 10:31 AM–12:31 PM 10:54 PM–12:54 AM | 4:38 AM–5:38 AM 5:10 PM–6:10 PM |
| Fri, Oct 9 🌘 Waning Crescent · Good | 11:16 AM–1:16 PM | 5:53 AM–6:53 AM 5:25 PM–6:25 PM |
| Sat, Oct 10 🌑 New Moon · Best | 11:38 PM–1:38 AM 12:01 PM–2:01 PM | 7:08 AM–8:08 AM 5:41 PM–6:41 PM |
| Sun, Oct 11 🌑 New Moon · Best | 12:23 AM–2:23 AM 12:46 PM–2:46 PM | 8:23 AM–9:23 AM 6:00 PM–7:00 PM |
| Mon, Oct 12 🌑 New Moon · Best | 1:10 AM–3:10 AM 1:34 PM–3:34 PM | 9:37 AM–10:37 AM 6:22 PM–7:22 PM |
Nearby tide stations
- Hanbury Point, Mosquito Pass, San Juan I.
3 km away - Waldron Island, Puget Sound
12 km away - Friday Harbor, San Juan Island
13 km away - Kanaka Bay, San Juan Island
15 km away - Orcas, Orcas Island
15 km away - Shaw Island, Ferry Terminal, Harney Channel
17 km away - Upright Head, Lopez Island
20 km away - Rosario, East Sound, Orcas Island
21 km away
Predictions from NOAA CO-OPS station 9449834 (subordinate station, corrected from reference station 9444900). Station page at NOAA. Updated daily. Not for navigation.
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