Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 5:47 am (0.4 ft)
Next high tide : in 5h 12m at 9:02 pm (5.6 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:16 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jan 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:354.23:464.910:382.111:43-0.18:245:59Waning Gibbous1Mon
2Tue6:204.24:324.611:292.08:246:00Waning Gibbous2Tue
3Wed7:024.15:244.112:150.012:231.98:246:00Waning Gibbous3Wed
4Thu7:444.16:263.712:460.11:241.78:246:01Third Quarter4Thu
5Fri8:244.07:423.31:190.32:311.48:246:02Third Quarter5Fri
6Sat9:044.19:083.11:560.53:411.28:246:03Third Quarter6Sat
7Sun9:404.210:273.02:390.84:470.88:246:04Third Quarter7Sun
8Mon10:134.411:363.23:271.25:460.58:246:05Waning Crescent8Mon
9Tue10:454.74:171.56:390.28:246:06Waning Crescent9Tue
10Wed12:373.411:17 AM5.05:071.87:270.08:246:07Waning Crescent10Wed
11Thu1:313.611:53 AM5.25:582.18:11-0.18:246:08Waning Crescent11Thu
12Fri2:213.912:335.56:492.28:53-0.28:246:09New Moon12Fri
13Sat3:074.01:175.67:402.39:32-0.38:236:10New Moon13Sat
14Sun3:504.12:035.78:312.210:09-0.48:236:11New Moon14Sun
15Mon4:304.12:535.69:232.010:45-0.48:236:12New Moon15Mon
16Tue5:094.23:445.410:151.811:21-0.48:226:13Waxing Crescent16Tue
17Wed5:474.24:395.011:101.511:58-0.38:226:14Waxing Crescent17Wed
18Thu6:274.35:414.512:111.48:216:15Waxing Crescent18Thu
19Fri7:094.46:534.012:38-0.11:201.28:216:16First Quarter19Fri
20Sat7:554.68:203.61:230.32:391.08:216:17First Quarter20Sat
21Sun8:454.79:483.52:140.73:590.78:206:18First Quarter21Sun
22Mon9:374.911:063.53:101.15:120.48:196:19Waxing Gibbous22Mon
23Tue10:305.14:111.46:160.18:196:21Waxing Gibbous23Tue
24Wed12:153.711:20 AM5.25:131.77:12-0.18:186:22Waxing Gibbous24Wed
25Thu1:144.012:085.36:132.08:03-0.38:186:23Waxing Gibbous25Thu
26Fri2:074.212:535.37:102.18:48-0.38:176:24Full Moon26Fri
27Sat2:554.31:355.38:022.19:29-0.28:166:25Full Moon27Sat
28Sun3:404.42:165.28:522.010:05-0.28:156:26Full Moon28Sun
29Mon4:214.42:565.09:381.910:36-0.18:156:27Full Moon29Mon
30Tue4:584.33:374.710:221.811:020.08:146:28Waning Gibbous30Tue
31Wed5:324.24:204.411:061.611:230.18:136:29Waning Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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

Slack tide in Port Chicago, CA is approximately 1:24 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 transitional phase. Tonight's moon is 31% 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 shifting between spring and neap.

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 (31% illuminated). This places Port Chicago, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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