Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 12:56 pm (1.3 ft)
Next high tide : in 39m at 7:39 am (3.4 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jul 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:493.010:064.95:020.93:361.35:498:34Waning Crescent1Thu
2Fri12:023.26:020.64:231.75:498:34Waning Crescent2Fri
3Sat1:073.46:570.35:132.25:508:34Waning Crescent3Sat
4Sun2:063.77:480.16:072.55:508:34Waning Crescent4Sun
5Mon12:045.93:003.98:37-0.17:062.65:518:34New Moon5Mon
6Tue12:526.13:504.09:23-0.38:062.65:518:34New Moon6Tue
7Wed1:446.14:364.110:07-0.49:082.55:528:33New Moon7Wed
8Thu2:386.05:204.210:49-0.510:092.35:528:33Waxing Crescent8Thu
9Fri3:345.86:034.311:30-0.511:112.05:538:33Waxing Crescent9Fri
10Sat4:335.46:464.412:09-0.45:548:32Waxing Crescent10Sat
11Sun5:364.87:294.512:151.712:48-0.25:548:32First Quarter11Sun
12Mon6:484.38:134.71:241.41:290.15:558:31First Quarter12Mon
13Tue8:073.88:584.92:381.12:120.55:568:31First Quarter13Tue
14Wed9:303.59:445.13:520.82:591.05:568:31First Quarter14Wed
15Thu10:473.510:295.35:030.43:501.45:578:30Waxing Gibbous15Thu
16Fri11:573.611:125.46:060.14:441.95:588:30Waxing Gibbous16Fri
17Sat1:003.87:030.05:392.25:588:29Waxing Gibbous17Sat
18Sun1:554.07:54-0.16:342.55:598:28Waxing Gibbous18Sun
19Mon12:315.52:464.28:40-0.27:272.66:008:28Full Moon19Mon
20Tue1:085.43:324.39:21-0.18:172.66:018:27Full Moon20Tue
21Wed1:455.34:134.39:58-0.19:042.66:028:26Full Moon21Wed
22Thu2:235.24:514.310:300.09:482.46:028:26Full Moon22Thu
23Fri3:025.05:244.210:560.010:312.26:038:25Waning Gibbous23Fri
24Sat3:434.85:544.211:170.011:131.96:048:24Waning Gibbous24Sat
25Sun4:274.46:184.211:370.111:591.76:058:23Waning Gibbous25Sun
26Mon5:154.16:414.312:020.26:068:23Waning Gibbous26Mon
27Tue6:123.67:054.412:501.612:330.56:068:22Third Quarter27Tue
28Wed7:263.37:364.71:521.41:120.96:078:21Third Quarter28Wed
29Thu9:033.18:155.03:081.31:571.46:088:20Third Quarter29Thu
30Fri10:353.19:015.24:271.02:491.96:098:19Third Quarter30Fri
31Sat11:513.49:535.55:370.73:482.36:108:18Waning Crescent31Sat
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 10:17 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 neap phase. Tonight's moon is 53% 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 minimum.

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 Third Quarter (53% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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