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 |
|---|---|---|
| High tide | 3:48 AM | 3.83 ft |
| Low tide | 8:41 AM | 1.70 ft |
| High tide | 2:26 PM | 5.68 ft |
| Low tide | 10:21 PM | -0.19 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 3:48 AM 3.8 ft2:26 PM 5.7 ft | 8:41 AM 1.7 ft10:21 PM -0.2 ft |
| Tomorrow Wed, Oct 28 | 4:48 AM 3.8 ft3:08 PM 5.8 ft | 9:28 AM 1.9 ft11:15 PM -0.2 ft |
| Thu, Oct 29 | 5:51 AM 3.7 ft3:56 PM 5.6 ft | 10:21 AM 2.1 ft |
| Fri, Oct 30 | 6:56 AM 3.7 ft4:50 PM 5.3 ft | 12:15 AM -0.1 ft11:23 AM 2.2 ft |
| Sat, Oct 31 | 8:00 AM 3.7 ft5:55 PM 4.8 ft | 1:18 AM -0.1 ft12:35 PM 2.1 ft |
| Sun, Nov 1 | 8:00 AM 3.8 ft6:16 PM 4.4 ft | 1:23 AM -0.1 ft12:58 PM 1.9 ft |
| Mon, Nov 2 | 8:55 AM 4.0 ft7:50 PM 4.0 ft | 2:23 AM -0.1 ft2:20 PM 1.6 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.
All California tide stations →
On Tuesday, October 27, high tide at Port Chicago, Suisun Bay is at 3:48 AM (3.8 ft) and 2:26 PM (5.7 ft); low tide is at 8:41 AM (1.7 ft) and 10:21 PM (-0.2 ft) (PDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 6.1 ft on July 4, 2027 at 1:29 AM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 152 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -0.6 ft on December 25, 2026 at 9:55 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.