Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 9:07 am (-0.3 ft)
Next high tide (tomorrow) : in 5h 28m at 1:20 am (5.7 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:20 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:074.57:143.512:070.05:116:58Third Quarter1Sat
2Sun5:034.28:043.612:560.05:106:59Third Quarter2Sun
3Mon6:093.88:493.71:021.81:490.15:097:00Third Quarter3Mon
4Tue7:313.69:294.02:171.52:410.25:087:01Third Quarter4Tue
5Wed8:593.510:044.33:281.13:280.35:077:02Waning Crescent5Wed
6Thu10:163.610:364.64:310.74:120.55:067:03Waning Crescent6Thu
7Fri11:223.711:085.05:290.34:560.85:057:04Waning Crescent7Fri
8Sat12:233.86:230.05:401.15:047:05Waning Crescent8Sat
9Sun1:223.97:17-0.36:271.45:037:06New Moon9Sun
10Mon12:215.72:204.08:10-0.57:171.65:027:06New Moon10Mon
11Tue1:035.83:184.09:02-0.58:111.85:017:07New Moon11Tue
12Wed1:485.84:164.19:54-0.59:091.95:007:08Waxing Crescent12Wed
13Thu2:375.65:144.110:47-0.510:101.94:597:09Waxing Crescent13Thu
14Fri3:315.26:124.111:39-0.411:171.84:587:10Waxing Crescent14Fri
15Sat4:324.77:084.212:33-0.34:577:11First Quarter15Sat
16Sun5:454.28:024.312:301.61:26-0.14:567:12First Quarter16Sun
17Mon7:103.88:534.41:451.42:180.04:557:13First Quarter17Mon
18Tue8:313.59:404.62:571.03:060.24:547:13First Quarter18Tue
19Wed9:433.410:224.74:020.63:510.54:547:14Waxing Gibbous19Wed
20Thu10:463.410:584.85:010.24:310.84:537:15Waxing Gibbous20Thu
21Fri11:423.511:294.95:54-0.15:081.24:527:16Waxing Gibbous21Fri
22Sat12:353.66:42-0.25:421.54:527:17Waxing Gibbous22Sat
23Sun1:243.77:27-0.36:161.84:517:18Full Moon23Sun
24Mon12:145.02:123.78:09-0.36:522.04:507:18Full Moon24Mon
25Tue12:345.12:583.88:47-0.27:302.24:507:19Full Moon25Tue
26Wed1:015.13:433.89:23-0.28:122.24:497:20Full Moon26Wed
27Thu1:355.14:263.89:55-0.28:572.24:497:21Waning Gibbous27Thu
28Fri2:145.05:073.810:23-0.29:442.14:487:21Waning Gibbous28Fri
29Sat2:594.95:483.810:52-0.210:351.94:487:22Waning Gibbous29Sat
30Sun3:484.66:283.811:24-0.211:321.84:477:23Waning Gibbous30Sun
31Mon4:434.27:073.912:02-0.14:477:24Third Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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What time does the tide turn (slack tide) in Port Chicago, CA today?

Slack tide in Port Chicago, CA is approximately 5:13 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Port Chicago, CA?

Port Chicago, CA is currently in a spring phase. Tonight's moon is 1% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Port Chicago, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Port Chicago, CA?

Tide predictions for Port Chicago, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Port Chicago, CA?

Tide data for Port Chicago, CA is sourced from NOAA Station #9415144. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415144.

What is the moon phase in Port Chicago, CA tonight?

Tonight the moon over Port Chicago, CA is New Moon (1% illuminated). This places Port Chicago, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA