Blaine, Semiahmoo Bay Tide Chart
Washington · NOAA Station 9449679 · 48.992°, -122.765°
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This Week’s Tides for Blaine, Semiahmoo Bay
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 6:18 AM | 1.8 ft |
| High | 12:51 PM | 6.1 ft |
| Low | 4:56 PM | 5.0 ft |
| High | 11:27 PM | 9.2 ft |
| Low | 7:10 AM | 1.2 ft |
| High | 2:52 PM | 6.6 ft |
| Low | 5:46 PM | 6.2 ft |
| High | 11:55 PM | 8.9 ft |
| Low | 8:01 AM | 0.6 ft |
| High | 4:28 PM | 7.4 ft |
| Low | 6:59 PM | 7.1 ft |
| High | 12:26 AM | 8.7 ft |
| Low | 8:48 AM | 0.1 ft |
| High | 5:27 PM | 8.0 ft |
| Low | 8:36 PM | 7.6 ft |
| High | 1:05 AM | 8.5 ft |
| Low | 9:33 AM | -0.3 ft |
| High | 6:05 PM | 8.5 ft |
| Low | 10:00 PM | 7.7 ft |
| High | 1:53 AM | 8.4 ft |
| Low | 10:14 AM | -0.7 ft |
| High | 6:36 PM | 8.9 ft |
| Low | 11:04 PM | 7.6 ft |
| High | 2:45 AM | 8.2 ft |
| Low | 10:54 AM | -1.0 ft |
| High | 7:04 PM | 9.1 ft |
| Low | 11:52 PM | 7.3 ft |
Blaine, Semiahmoo Bay Tide Table — Next 30 Days
Every high and low tide for the next month at Blaine, Semiahmoo Bay, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Tue, Jul 21Today | 5:30 AM | 9:05 PM | Low6:18 AM1.8 ft | High12:51 PM6.1 ft | Low4:56 PM5.0 ft | High11:27 PM9.2 ft | 7.4 ft |
| Wed, Jul 22 | 5:31 AM | 9:03 PM | Low7:10 AM1.2 ft | High2:52 PM6.6 ft | Low5:46 PM6.2 ft | High11:55 PM8.9 ft | 7.7 ft |
| Thu, Jul 23 | 5:32 AM | 9:02 PM | Low8:01 AM0.6 ft | High4:28 PM7.4 ft | Low6:59 PM7.1 ft | — | 6.8 ft |
| Fri, Jul 24 | 5:33 AM | 9:01 PM | High12:26 AM8.7 ft | Low8:48 AM0.1 ft | High5:27 PM8.0 ft | Low8:36 PM7.6 ft | 8.6 ft |
| Sat, Jul 25 | 5:35 AM | 9:00 PM | High1:05 AM8.5 ft | Low9:33 AM-0.3 ft | High6:05 PM8.5 ft | Low10:00 PM7.7 ft | 8.8 ft |
| Sun, Jul 26 | 5:36 AM | 8:59 PM | High1:53 AM8.4 ft | Low10:14 AM-0.7 ft | High6:36 PM8.9 ft | Low11:04 PM7.6 ft | 9.6 ft |
| Mon, Jul 27 | 5:37 AM | 8:57 PM | High2:45 AM8.2 ft | Low10:54 AM-1.0 ft | High7:04 PM9.1 ft | Low11:52 PM7.3 ft | 10.1 ft |
| Tue, Jul 28 | 5:38 AM | 8:56 PM | High3:36 AM8.1 ft | Low11:31 AM-1.2 ft | High7:29 PM9.3 ft | — | 10.5 ft |
| Wed, Jul 29 | 5:40 AM | 8:55 PM | Low12:33 AM6.9 ft | High4:25 AM8.0 ft | Low12:06 PM-1.2 ft | High7:53 PM9.4 ft | 10.6 ft |
| Thu, Jul 30 | 5:41 AM | 8:53 PM | Low1:10 AM6.4 ft | High5:14 AM7.7 ft | Low12:39 PM-1.0 ft | High8:15 PM9.5 ft | 10.5 ft |
| Fri, Jul 31 | 5:42 AM | 8:52 PM | Low1:46 AM5.9 ft | High6:03 AM7.5 ft | Low1:11 PM-0.6 ft | High8:36 PM9.5 ft | 10.1 ft |
| Sat, Aug 1 | 5:44 AM | 8:50 PM | Low2:23 AM5.2 ft | High6:55 AM7.2 ft | Low1:43 PM0.2 ft | High8:56 PM9.5 ft | 9.3 ft |
| Sun, Aug 2 | 5:45 AM | 8:49 PM | Low3:00 AM4.4 ft | High7:51 AM6.9 ft | Low2:15 PM1.2 ft | High9:15 PM9.4 ft | 8.2 ft |
| Mon, Aug 3 | 5:46 AM | 8:47 PM | Low3:39 AM3.6 ft | High8:56 AM6.6 ft | Low2:48 PM2.4 ft | High9:36 PM9.3 ft | 6.9 ft |
| Tue, Aug 4 | 5:48 AM | 8:46 PM | Low4:22 AM2.6 ft | High10:13 AM6.5 ft | Low3:25 PM3.8 ft | High9:58 PM9.3 ft | 6.7 ft |
| Wed, Aug 5 | 5:49 AM | 8:44 PM | Low5:09 AM1.6 ft | High11:44 AM6.5 ft | Low4:06 PM5.1 ft | High10:24 PM9.3 ft | 7.7 ft |
| Thu, Aug 6 | 5:51 AM | 8:42 PM | Low6:02 AM0.6 ft | High1:36 PM7.0 ft | Low5:00 PM6.4 ft | High10:56 PM9.3 ft | 8.7 ft |
| Fri, Aug 7 | 5:52 AM | 8:41 PM | Low7:01 AM-0.3 ft | High3:25 PM7.8 ft | Low6:21 PM7.4 ft | High11:38 PM9.3 ft | 9.6 ft |
| Sat, Aug 8 | 5:53 AM | 8:39 PM | Low8:02 AM-1.1 ft | High4:35 PM8.6 ft | Low8:08 PM7.9 ft | — | 9.7 ft |
| Sun, Aug 9 | 5:55 AM | 8:38 PM | High12:36 AM9.2 ft | Low9:02 AM-1.8 ft | High5:24 PM9.2 ft | Low9:38 PM7.8 ft | 11.0 ft |
| Mon, Aug 10 | 5:56 AM | 8:36 PM | High1:50 AM9.0 ft | Low9:59 AM-2.3 ft | High6:03 PM9.6 ft | Low10:47 PM7.3 ft | 11.9 ft |
| Tue, Aug 11 | 5:58 AM | 8:34 PM | High3:05 AM8.9 ft | Low10:52 AM-2.5 ft | High6:37 PM9.9 ft | Low11:44 PM6.5 ft | 12.4 ft |
| Wed, Aug 12 | 5:59 AM | 8:32 PM | High4:16 AM8.8 ft | Low11:41 AM-2.2 ft | High7:09 PM10.0 ft | — | 12.2 ft |
| Thu, Aug 13 | 6:00 AM | 8:31 PM | Low12:34 AM5.5 ft | High5:23 AM8.6 ft | Low12:27 PM-1.6 ft | High7:39 PM9.9 ft | 11.5 ft |
| Fri, Aug 14 | 6:02 AM | 8:29 PM | Low1:21 AM4.5 ft | High6:27 AM8.3 ft | Low1:10 PM-0.5 ft | High8:08 PM9.8 ft | 10.3 ft |
| Sat, Aug 15 | 6:03 AM | 8:27 PM | Low2:06 AM3.6 ft | High7:30 AM7.9 ft | Low1:50 PM0.8 ft | High8:35 PM9.6 ft | 8.8 ft |
| Sun, Aug 16 | 6:05 AM | 8:25 PM | Low2:51 AM2.7 ft | High8:33 AM7.5 ft | Low2:29 PM2.2 ft | High9:00 PM9.4 ft | 7.2 ft |
| Mon, Aug 17 | 6:06 AM | 8:23 PM | Low3:37 AM2.1 ft | High9:42 AM7.1 ft | Low3:07 PM3.6 ft | High9:25 PM9.1 ft | 7.0 ft |
| Tue, Aug 18 | 6:07 AM | 8:21 PM | Low4:24 AM1.6 ft | High10:59 AM6.9 ft | Low3:47 PM4.9 ft | High9:50 PM8.8 ft | 7.2 ft |
| Wed, Aug 19 | 6:09 AM | 8:20 PM | Low5:13 AM1.3 ft | High12:30 PM6.9 ft | Low4:30 PM6.0 ft | High10:16 PM8.5 ft | 7.2 ft |
About Blaine, Semiahmoo Bay tides
Tide predictions for Blaine, Semiahmoo Bay come from NOAA station 9449679 (Washington), computed from long-term harmonic analysis of observed water levels. Heights are shown in feet relative to MLLW (Mean Lower Low Water) — the same datum used on US nautical charts — so they line up directly with charted depths.
Blaine, Semiahmoo Bay typically sees a mixed semidiurnal tide, with two highs and two lows of differing heights each day. Use the curve above to time a harbor entrance, a beach walk, fishing a moving tide, or clearing a shallow bar — and remember that wind and pressure can push the real water level above or below prediction. The daily tidal range in the 30-day table shows how much water moves each day: bigger ranges around the new and full moon mean stronger currents.
Frequently asked
What time is high tide in Blaine, Semiahmoo Bay today?+
Today (Tuesday, July 21), high tide at Blaine, Semiahmoo Bay is at 12:51 PM (6.1 ft), 11:27 PM (9.2 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Blaine, Semiahmoo Bay today?+
Today, low tide at Blaine, Semiahmoo Bay is at 6:18 AM (1.8 ft), 4:56 PM (5.0 ft).
What tidal datum do these Blaine, Semiahmoo Bay tide heights use?+
All heights are given in feet relative to MLLW (Mean Lower Low Water), the standard NOAA chart datum for US tidal waters. A tide of 0.0 ft equals the chart datum; negative tides fall below it.
How accurate are these tide predictions?+
These are NOAA harmonic predictions — highly accurate for the astronomical tide. Real water levels can still differ with wind, barometric pressure, and storms, so always check current conditions before getting underway.
Never mistime a tide again.
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