Armitage Island, Thatcher Pass Tides Today
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Armitage Island, Thatcher Pass runs a mean tidal range of about 5.6 ft. This month the highest water, 9.1 ft, comes on the morning of Nov 27, and the lowest, a -3.4 ft minus tide, on the evening of Nov 25.
| Low tide | 4:30 AM | 0.9 ft |
| High tide | 12:56 PM | 8.2 ft |
| Low tide | 7:29 PM | 3.9 ft |
| High tide | 11:53 PM | 5.0 ft |
Today on the water at Armitage Island, Thatcher Pass
Today at Armitage Island, Thatcher Pass: high tide at 12:56 PM (8.2 ft) and 11:53 PM (5.0 ft), low tide at 4:30 AM (0.9 ft) and 7:29 PM (3.9 ft). The National Weather Service forecast for Tuesday is partly sunny with N winds 2 mph, 52°F. Sunrise is at 6:59 AM and sunset at 4:50 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Cloudy | NNE 1 mph | 47°F |
| Tuesday | Partly Sunny | N 2 mph | 52°F |
Forecast: National Weather Service point forecast for this location.
Where Armitage Island, Thatcher Pass is
Armitage Island, Thatcher Pass sits at 48.5350° N, 122.7970° W on Puget Sound and the Salish Sea, about 5 mi west of Anacortes, WA, in San Juan County. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1972 until 2000, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Friday Harbor, San Juan Island (NOAA 9449880), 9.9 mi away, and high and low water here run on average about 18 min earlier than there. The nearest weather station is Anacortes, an airport reporting wind, visibility and sky cover, but no water temperature, 6.7 mi away.
The tide at Armitage Island, Thatcher Pass
Armitage Island, Thatcher Pass has a mixed tide: two highs and two lows a day, but of unequal size, so one low each day drains noticeably lower than the other. This month's predictions average 1.7 high tides a day here. The mean range from lower low to higher high is 7.8 ft, and 4.9 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.6 ft and the lower low sits 2.3 ft below the other low. For the water around it: Puget Sound tides are mixed semidiurnal with a strong daily inequality: two highs and two lows a day, ranges of 8 to 14 ft, and lows that differ by several feet.
About this station
- High tide reaches Armitage Island, Thatcher Pass about 0.3 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
- Highest water on record: 10.4 ft on Dec 16, 1997.
- Lowest on record: -3.7 ft on Dec 25, 1999.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Armitage Island, Thatcher Pass from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 7.8 ft above it and mean sea level 4.7 ft. These datums are controlled from NOAA's Friday Harbor, WA gauge. Source: NOAA CO-OPS station 9449932, established 1972, gauge removed 2000. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Armitage Island, Thatcher Pass
- Strawberry Bay, Cypress Island: 4.0 mi, tides about 17 min later
- Upright Head, Lopez Island: 4.8 mi, tides about 6 min later
- Telegraph Bay, Puget Sound: 6.3 mi, tides about 26 min earlier
- Shaw Island, Ferry Terminal, Harney Channel: 6.9 mi, tides about 18 min later
- Burrows Bay (Allan Island): 7.0 mi, tides about 20 min earlier
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Armitage Island, Thatcher Pass this month: Nov 24, Nov 25, Nov 26, Nov 27, Nov 28, Nov 29, Nov 30. 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 Armitage Island, Thatcher Pass this month: Nov 1, Nov 2, Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 14, Nov 15, Nov 22, Nov 23 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Armitage Island, Thatcher Pass, 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 🌗 | 6:43–8:43 AM 7:08–9:08 PM | 11:34–1:34 AM 1:34–3:34 PM | 49 |
| Wed Nov 4 🌗 | 7:31–9:31 AM 7:56–9:56 PM | 12:55–2:55 AM 1:51–3:51 PM | 62 |
| Thu Nov 5 🌘 | 8:17–10:17 AM 8:42–10:42 PM | 2:13–4:13 AM 2:06–4:06 PM | 74 |
| Fri Nov 6 🌘 | 9:02–11:02 AM 9:27–11:27 PM | 3:28–5:28 AM 2:22–4:22 PM | 84 |
| Sat Nov 7 🌘 | 9:47–11:47 AM 10:12–12:12 AM | 4:43–6:43 AM 2:39–4:39 PM | 92 |
| Sun Nov 8 🌘 | 10:33–12:33 PM 10:58–12:58 AM | 5:57–7:57 AM 3:00–5:00 PM | 97 |
| Mon Nov 9 🌑 | 11:21–1:21 PM 11:46–1:46 AM | 7:10–9:10 AM 3:26–5:26 PM | 99 |
Predictions & observations: NOAA CO-OPS station 9449932. 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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