Blaine, Semiahmoo Bay Tides Today

Washington · Station 9449679 · Updated Nov 4, 2026

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Blaine, Semiahmoo Bay runs a mean tidal range of about 6.1 ft. This month the highest water, 10.9 ft, comes on the morning of Nov 27, and the lowest, a -3.3 ft minus tide, on the evening of Nov 25.

Predictedno live gauge
Next high tide 9.5 ft at 1:47 PM
High 6.1 ft · 12:40 AMLow 2.2 ft · 6:41 AMHigh 9.5 ft · 1:47 PMLow 2.8 ft · 8:35 PM
Predicted
Today's tides
High tide12:40 AM6.1 ft
Low tide6:41 AM2.2 ft
High tide1:47 PM9.5 ft
Low tide8:35 PM2.8 ft

Today on the water at Blaine, Semiahmoo Bay

Today at Blaine, Semiahmoo Bay: high tide at 12:40 AM (6.1 ft) and 1:47 PM (9.5 ft), low tide at 6:41 AM (2.2 ft) and 8:35 PM (2.8 ft). The National Weather Service forecast for today is mostly cloudy then chance light rain with SE winds 2 mph, 55°F. Sunrise is at 7:01 AM and sunset at 4:47 PM.

PeriodForecastWindTemp
TodayMostly Cloudy then Chance Light RainSE 2 mph55°F
TonightLight RainSSE 2 to 9 mph47°F

Forecast: National Weather Service point forecast for this location.

Where Blaine, Semiahmoo Bay is

Blaine, Semiahmoo Bay sits at 48.9917° N, 122.7650° W on Puget Sound and the Salish Sea, at Blaine, WA. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1973 until 2011, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Cherry Point (NOAA 9449424), 8.9 mi away, and high and low water here run on average about 5 min later than there. The nearest weather station is Cherry Point, WA, a shore station reporting wind and, at most sites, water temperature, 8.9 mi away.

The tide at Blaine, Semiahmoo Bay

Blaine, Semiahmoo Bay 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 1.8 high tides a day here. The mean range from lower low to higher high is 9.5 ft, and 6.0 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.9 ft and the lower low sits 2.7 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

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 Blaine, Semiahmoo Bay from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 9.5 ft above it and mean sea level 5.5 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 1.0 ft above MLLW here, so a water level on this page converts to NAVD88 by subtracting that amount. These datums are controlled from NOAA's Cherry Point, WA gauge. Source: NOAA CO-OPS station 9449679, established 1973, gauge removed 2011. 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 Blaine, Semiahmoo Bay

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Monthly tide calendar

Flood & low finder

🌊 Biggest flood tides of the month at Blaine, Semiahmoo Bay this month: Nov 25, Nov 26, Nov 27, Nov 28, Nov 29, Nov 30. These spring highs run the highest water of the month.

🔻 Lowest tides of the month at Blaine, Semiahmoo Bay this month: Nov 1, Nov 2, Nov 7, Nov 8, Nov 9, Nov 10, Nov 12, Nov 13, Nov 14, Nov 22, Nov 23, Nov 24 …. These minus lows are when flats and bars dry out.

November 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1🌗L:-1.0H:9.8L:6.7H:6.9
2🌗L:-0.1H:9.6L:5.5H:6.2
3🌗L:1.0H:9.6L:4.1
4🌗H:6.1L:2.2H:9.5L:2.8
5H:6.6L:3.3H:9.4L:1.5
6H:7.4L:4.3H:9.3L:0.4
7H:8.2L:5.2H:9.2L:-0.4
8H:8.8L:5.9H:9.1L:-0.9
9🌑H:9.3L:6.5H:8.9L:-1.1
10🌑H:9.6L:6.9H:8.6L:-1.2
11🌑H:9.7L:7.2H:8.3
12L:-1.0H:9.6L:7.4H:8.0
13L:-0.8H:9.5L:7.4H:7.7
14L:-0.4H:9.4
15L:0.1H:9.2
16🌓L:0.7H:9.2
17🌓L:1.4H:9.1L:5.3H:5.4
18🌓L:2.2H:9.1L:4.2
19🌓H:5.4L:3.2H:9.2L:3.0
20H:6.0L:4.2H:9.2L:1.7
21H:7.1L:5.1H:9.3L:0.3
22H:8.2L:6.0H:9.5L:-1.0
23🌕H:9.2L:6.7H:9.6L:-2.1
24🌕H:10.1L:7.3H:9.7L:-2.9
25🌕H:10.6L:7.7H:9.6L:-3.3
26🌕H:10.9L:7.9H:9.4
27L:-3.3H:10.9L:7.8H:8.9
28L:-2.8H:10.7L:7.4H:8.2
29L:-1.9H:10.5L:6.6H:7.3
30L:-0.6H:10.3L:5.4H:6.3

Best fishing times (solunar)

Major and minor solunar windows for Blaine, Semiahmoo Bay, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).

DayMajor windowsMinor windowsScore
Today 🌗7:31–9:31 AM
7:56–9:56 PM
12:54–2:54 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 🌘9:01–11:01 AM
9:26–11:26 PM
3:29–5:29 AM
2:21–4:21 PM
84
Sat Nov 7 🌘9:47–11:47 AM
10:12–12:12 AM
4:44–6:44 AM
2:38–4:38 PM
92
Sun Nov 8 🌘10:33–12:33 PM
10:58–12:58 AM
5:59–7:59 AM
2:58–4:58 PM
97
Mon Nov 9 🌑11:21–1:21 PM
11:46–1:46 AM
7:12–9:12 AM
3:23–5:23 PM
99
Tue Nov 10 🌑12:11–2:11 PM
12:36–2:36 AM
8:21–10:21 AM
3:56–5:56 PM
98

Predictions & observations: NOAA CO-OPS station 9449679. 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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