Port Chicago tide times
The tide is falling: low tide at 5:58 PM, 1.7 ft. Measured 2.45 ft at 5:48 PM, 0.75 ft above the prediction.
Now
Today, Tuesday, September 22: every high and low tide, and the predicted curve through the day.
- Low tide6:24 AM0.1 ft
- High tide12:38 PM4.0 ft
- Low tide5:58 PM1.7 ft
- High tide11:40 PM4.3 ft
Feet above mean lower low water. Times are Pacific Daylight Time. Sunrise 6:56 AM, sunset 7:05 PM.
Alerts in force
National Weather Service products for coastal flooding, storm surge, high surf and tsunami at this station’s position.
None right now. The National Weather Service issues coastal flood advisories and warnings, storm surge watches and warnings, high surf advisories and tsunami messages for water at this station.
7-day tide table
Highest tide this week 5.2 ft, Mon, Sep 28 at 3:05 PM. Lowest 0.1 ft, Wed, Sep 23 at 6:59 AM.
| Date | High and low tides | Sunrise / sunset | Moon | |||
|---|---|---|---|---|---|---|
| Tue, Sep 22 Today | Low 6:24 AM 0.1 ft | High 12:38 PM 4.0 ft | Low 5:58 PM 1.7 ft | High 11:40 PM 4.3 ft | 6:56 AM / 7:05 PM | Waxing gibbousRises 5:13 PM |
| Wed, Sep 23 | Low 6:59 AM 0.1 ft | High 1:12 PM 4.1 ft | Low 6:46 PM 1.4 ft | 6:57 AM / 7:03 PM | Waxing gibbousRises 5:39 PM | |
| Thu, Sep 24 | High 12:30 AM 4.4 ft | Low 7:28 AM 0.2 ft | High 1:39 PM 4.2 ft | Low 7:31 PM 1.1 ft | 6:58 AM / 7:02 PM | Waxing gibbousRises 6:03 PM |
| Fri, Sep 25 | High 1:16 AM 4.4 ft | Low 7:54 AM 0.3 ft | High 2:00 PM 4.4 ft | Low 8:14 PM 0.8 ft | 6:59 AM / 7:00 PM | Waxing gibbousRises 6:27 PM |
| Sat, Sep 26 | High 2:01 AM 4.3 ft | Low 8:18 AM 0.5 ft | High 2:18 PM 4.6 ft | Low 8:56 PM 0.6 ft | 7:00 AM / 6:59 PM | Full moon 9:49 AMRises 6:52 PM |
| Sun, Sep 27 | High 2:49 AM 4.2 ft | Low 8:45 AM 0.8 ft | High 2:38 PM 4.9 ft | Low 9:38 PM 0.4 ft | 7:00 AM / 6:57 PM | Waning gibbousRises 7:19 PM |
| Mon, Sep 28 | High 3:39 AM 4.1 ft | Low 9:16 AM 1.1 ft | High 3:05 PM 5.2 ft | Low 10:23 PM 0.3 ft | 7:01 AM / 6:55 PM | Waning gibbousRises 7:49 PM |
Next moon phases: full moon Sat, Sep 26, last quarter Sat, Oct 3.
Water level, last 48 hours
Measured 2.45 ft at 5:48 PM, 0.75 ft above the prediction. Highest in 48 hours: 5.15 ft at Mon 10:54 PM.
- Measured
- Predicted tide
Storm surge
Measured less predicted: +0.75 ft now; over 48 hours, +0.42 ft to +1.08 ft. Wind, air pressure and river flow move the water off the tide table.
Coastal flood thresholds
| Minor flooding | 6.8 ft |
| Moderate flooding | 7.7 ft |
| Major flooding | 8.9 ft |
The water is 4.30 ft below minor flood level now. Highest predicted tide in the next 7 days: 5.5 ft on Tue, Sep 29 at 3:39 PM, 1.3 ft below minor flooding. Thresholds are the National Ocean Service’s, in feet above MLLW.
Datums and records
Heights above mean lower low water (MLLW), the zero of this page and of NOAA’s charts. Tidal epoch 1983-2001.
| Mean higher high water MHHW | 4.91 ft |
| Mean high water MHW | 4.40 ft |
| Mean diurnal tide level DTL | 2.45 ft |
| Mean tide level MTL | 2.57 ft |
| Mean sea level MSL | 2.56 ft |
| Mean low water MLW | 0.74 ft |
| Mean lower low water MLLW | 0.00 ft |
| NAVD88 (land survey datum) NAVD88 | -1.10 ft |
| Highest water measured December 3, 1983 | 7.92 ft |
| Lowest water measured January 8, 1989 | -1.47 ft |
| Highest astronomical tide | 6.18 ft |
| Lowest astronomical tide | -0.67 ft |
Mean range of tide 3.66 ft; great diurnal range 4.91 ft.
What this means
Heights are feet above mean lower low water (MLLW): the average of the lower of each day’s two low tides over NOAA’s 19-year tidal epoch, and the zero of US tide tables and nautical charts. A low tide below that average is printed as a negative height.
Predictions are astronomical. They account for the moon and the sun, not the weather: onshore wind, low air pressure and high river flow hold the water above the prediction, offshore wind and high pressure hold it below. The water level above measures the difference.
Spring tides, the largest ranges of the month, follow the new and full moon by a day or two. Neap tides, the smallest, follow the quarter moons.
Nearby8
The closest other NOAA tide stations, nearest first.
More for this place
Sources
Tide predictions and water levels from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS). Coastal flood, storm surge and high surf products from the National Weather Service. Station 9415144: original at NOAA.