Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.
| Tide | Time | Height |
|---|---|---|
| Low tide | 1:42 AM | 0.10 ft |
| High tide | 6:08 AM | 1.96 ft |
| Low tide | 12:35 PM | 0.41 ft |
| High tide | 5:57 PM | 3.54 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 6:08 AM 2.0 ft5:57 PM 3.5 ft | 1:42 AM 0.1 ft12:35 PM 0.4 ft |
| Tomorrow Wed, Oct 28 | 6:54 AM 1.9 ft6:38 PM 3.6 ft | 2:32 AM 0.1 ft1:15 PM 0.6 ft |
| Thu, Oct 29 | 7:45 AM 1.8 ft7:22 PM 3.5 ft | 3:24 AM 0.2 ft2:00 PM 0.7 ft |
| Fri, Oct 30 | 8:42 AM 1.8 ft8:09 PM 3.3 ft | 4:18 AM 0.3 ft2:52 PM 0.8 ft |
| Sat, Oct 31 | 9:52 AM 1.8 ft9:04 PM 2.9 ft | 5:15 AM 0.4 ft3:53 PM 0.9 ft |
| Sun, Nov 1 | 10:19 AM 1.8 ft9:09 PM 2.6 ft | 5:15 AM 0.4 ft4:08 PM 0.9 ft |
| Mon, Nov 2 | 11:41 AM 2.0 ft10:33 PM 2.3 ft | 6:14 AM 0.3 ft5:40 PM 0.9 ft |
Orange: measured by NOAA's sensor, last 24 hours (6-minute data, preliminary). Dashed: predicted tide, through the next 24 hours. The prediction contains only the astronomical tide; wind, air pressure and river flow move the real water level away from it.
On Tuesday, October 27, high tide at Saint Helens is at 6:08 AM (2.0 ft) and 5:57 PM (3.5 ft); low tide is at 1:42 AM (0.1 ft) and 12:35 PM (0.4 ft) (PDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 4.0 ft on December 23, 2026 at 3:28 PM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 82 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -0.7 ft on September 1, 2027 at 1:15 PM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (PDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.
From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. The curve between highs and lows is our interpolation. This page is not for navigation.