Umpqua River Entrance, Half Moon Bay Tide Chart
Oregon · NOAA Station 9433445 · 43.675°, -124.192°
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This Week’s Tides for Umpqua River Entrance, Half Moon Bay
High and low tide times and heights (ft, MLLW) for the week ahead.
| Low | 12:38 AM | 1.1 ft |
| High | 6:33 AM | 4.4 ft |
| Low | 12:00 PM | 1.9 ft |
| High | 6:38 PM | 6.6 ft |
| Low | 1:44 AM | 0.9 ft |
| High | 7:59 AM | 4.1 ft |
| Low | 12:50 PM | 2.7 ft |
| High | 7:25 PM | 6.5 ft |
| Low | 2:50 AM | 0.6 ft |
| High | 9:34 AM | 4.1 ft |
| Low | 1:52 PM | 3.2 ft |
| High | 8:18 PM | 6.4 ft |
| Low | 3:51 AM | 0.3 ft |
| High | 10:54 AM | 4.4 ft |
| Low | 3:00 PM | 3.5 ft |
| High | 9:12 PM | 6.4 ft |
| Low | 4:45 AM | 0.0 ft |
| High | 11:48 AM | 4.7 ft |
| Low | 4:04 PM | 3.5 ft |
| High | 10:04 PM | 6.6 ft |
| Low | 5:31 AM | -0.3 ft |
| High | 12:27 PM | 4.9 ft |
| Low | 4:58 PM | 3.4 ft |
| High | 10:52 PM | 6.7 ft |
| Low | 6:11 AM | -0.6 ft |
| High | 1:00 PM | 5.1 ft |
| Low | 5:44 PM | 3.1 ft |
| High | 11:35 PM | 6.9 ft |
Umpqua River Entrance, Half Moon Bay Tide Table — Next 30 Days
Every high and low tide for the next month at Umpqua River Entrance, Half Moon Bay, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Tue, Jul 21Today | 5:54 AM | 8:51 PM | Low12:38 AM1.1 ft | High6:33 AM4.4 ft | Low12:00 PM1.9 ft | High6:38 PM6.6 ft | 5.5 ft |
| Wed, Jul 22 | 5:55 AM | 8:51 PM | Low1:44 AM0.9 ft | High7:59 AM4.1 ft | Low12:50 PM2.7 ft | High7:25 PM6.5 ft | 5.6 ft |
| Thu, Jul 23 | 5:56 AM | 8:50 PM | Low2:50 AM0.6 ft | High9:34 AM4.1 ft | Low1:52 PM3.2 ft | High8:18 PM6.4 ft | 5.8 ft |
| Fri, Jul 24 | 5:57 AM | 8:49 PM | Low3:51 AM0.3 ft | High10:54 AM4.4 ft | Low3:00 PM3.5 ft | High9:12 PM6.4 ft | 6.1 ft |
| Sat, Jul 25 | 5:58 AM | 8:48 PM | Low4:45 AM0.0 ft | High11:48 AM4.7 ft | Low4:04 PM3.5 ft | High10:04 PM6.6 ft | 6.6 ft |
| Sun, Jul 26 | 5:59 AM | 8:47 PM | Low5:31 AM-0.3 ft | High12:27 PM4.9 ft | Low4:58 PM3.4 ft | High10:52 PM6.7 ft | 7.0 ft |
| Mon, Jul 27 | 6:00 AM | 8:46 PM | Low6:11 AM-0.6 ft | High1:00 PM5.1 ft | Low5:44 PM3.1 ft | High11:35 PM6.9 ft | 7.5 ft |
| Tue, Jul 28 | 6:01 AM | 8:45 PM | Low6:47 AM-0.8 ft | High1:29 PM5.2 ft | Low6:25 PM2.9 ft | — | 6.0 ft |
| Wed, Jul 29 | 6:02 AM | 8:43 PM | High12:15 AM7.0 ft | Low7:19 AM-0.9 ft | High1:57 PM5.4 ft | Low7:04 PM2.6 ft | 7.9 ft |
| Thu, Jul 30 | 6:03 AM | 8:42 PM | High12:54 AM7.0 ft | Low7:50 AM-1.0 ft | High2:25 PM5.6 ft | Low7:43 PM2.3 ft | 8.0 ft |
| Fri, Jul 31 | 6:05 AM | 8:41 PM | High1:32 AM6.8 ft | Low8:19 AM-0.8 ft | High2:52 PM5.9 ft | Low8:23 PM2.0 ft | 7.6 ft |
| Sat, Aug 1 | 6:06 AM | 8:40 PM | High2:11 AM6.6 ft | Low8:49 AM-0.6 ft | High3:20 PM6.1 ft | Low9:04 PM1.7 ft | 7.2 ft |
| Sun, Aug 2 | 6:07 AM | 8:39 PM | High2:54 AM6.2 ft | Low9:19 AM-0.1 ft | High3:49 PM6.4 ft | Low9:50 PM1.4 ft | 6.5 ft |
| Mon, Aug 3 | 6:08 AM | 8:37 PM | High3:40 AM5.8 ft | Low9:50 AM0.5 ft | High4:21 PM6.6 ft | Low10:40 PM1.1 ft | 6.1 ft |
| Tue, Aug 4 | 6:09 AM | 8:36 PM | High4:35 AM5.3 ft | Low10:25 AM1.1 ft | High4:56 PM6.8 ft | Low11:39 PM0.8 ft | 6.0 ft |
| Wed, Aug 5 | 6:10 AM | 8:35 PM | High5:41 AM4.8 ft | Low11:05 AM1.9 ft | High5:39 PM6.9 ft | — | 5.0 ft |
| Thu, Aug 6 | 6:11 AM | 8:34 PM | Low12:46 AM0.5 ft | High7:03 AM4.4 ft | Low11:55 AM2.6 ft | High6:31 PM7.0 ft | 6.5 ft |
| Fri, Aug 7 | 6:12 AM | 8:32 PM | Low1:59 AM0.1 ft | High8:37 AM4.3 ft | Low1:03 PM3.1 ft | High7:35 PM7.1 ft | 7.0 ft |
| Sat, Aug 8 | 6:13 AM | 8:31 PM | Low3:11 AM-0.4 ft | High10:04 AM4.6 ft | Low2:25 PM3.3 ft | High8:45 PM7.3 ft | 7.7 ft |
| Sun, Aug 9 | 6:14 AM | 8:29 PM | Low4:17 AM-0.9 ft | High11:10 AM5.0 ft | Low3:44 PM3.2 ft | High9:52 PM7.6 ft | 8.5 ft |
| Mon, Aug 10 | 6:15 AM | 8:28 PM | Low5:15 AM-1.4 ft | High12:00 PM5.4 ft | Low4:52 PM2.8 ft | High10:53 PM7.8 ft | 9.2 ft |
| Tue, Aug 11 | 6:17 AM | 8:27 PM | Low6:05 AM-1.7 ft | High12:42 PM5.8 ft | Low5:52 PM2.3 ft | High11:50 PM7.9 ft | 9.6 ft |
| Wed, Aug 12 | 6:18 AM | 8:25 PM | Low6:49 AM-1.7 ft | High1:21 PM6.2 ft | Low6:46 PM1.8 ft | — | 7.9 ft |
| Thu, Aug 13 | 6:19 AM | 8:24 PM | High12:42 AM7.7 ft | Low7:30 AM-1.6 ft | High1:58 PM6.5 ft | Low7:36 PM1.3 ft | 9.3 ft |
| Fri, Aug 14 | 6:20 AM | 8:22 PM | High1:33 AM7.4 ft | Low8:08 AM-1.1 ft | High2:34 PM6.8 ft | Low8:25 PM0.9 ft | 8.5 ft |
| Sat, Aug 15 | 6:21 AM | 8:21 PM | High2:22 AM6.9 ft | Low8:44 AM-0.5 ft | High3:09 PM6.9 ft | Low9:13 PM0.7 ft | 7.4 ft |
| Sun, Aug 16 | 6:22 AM | 8:19 PM | High3:12 AM6.2 ft | Low9:19 AM0.3 ft | High3:43 PM7.0 ft | Low10:02 PM0.7 ft | 6.7 ft |
| Mon, Aug 17 | 6:23 AM | 8:18 PM | High4:04 AM5.6 ft | Low9:54 AM1.1 ft | High4:18 PM6.9 ft | Low10:53 PM0.7 ft | 6.2 ft |
| Tue, Aug 18 | 6:24 AM | 8:16 PM | High5:00 AM5.0 ft | Low10:30 AM1.9 ft | High4:56 PM6.7 ft | Low11:49 PM0.8 ft | 5.9 ft |
| Wed, Aug 19 | 6:26 AM | 8:14 PM | High6:06 AM4.5 ft | Low11:11 AM2.7 ft | High5:38 PM6.4 ft | — | 3.7 ft |
About Umpqua River Entrance, Half Moon Bay tides
Tide predictions for Umpqua River Entrance, Half Moon Bay come from NOAA station 9433445 (Oregon), 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.
Umpqua River Entrance, Half Moon 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 Umpqua River Entrance, Half Moon Bay today?+
Today (Tuesday, July 21), high tide at Umpqua River Entrance, Half Moon Bay is at 6:33 AM (4.4 ft), 6:38 PM (6.6 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Umpqua River Entrance, Half Moon Bay today?+
Today, low tide at Umpqua River Entrance, Half Moon Bay is at 12:38 AM (1.1 ft), 12:00 PM (1.9 ft).
What tidal datum do these Umpqua River Entrance, Half Moon 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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