Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 28m at 9:59 am (-0.1 ft)
Next high tide : 4:21 pm (4.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:094.112:415.17:102.08:40-0.17:244:59Full Moon1Sun
2Mon2:524.11:115.17:522.19:13-0.17:245:00Full Moon2Mon
3Tue3:334.11:455.08:332.19:400.07:245:01Full Moon3Tue
4Wed4:114.12:234.89:142.010:020.07:245:01Waning Gibbous4Wed
5Thu4:464.03:054.69:561.910:230.07:245:02Waning Gibbous5Thu
6Fri5:194.03:514.310:411.710:500.07:245:03Waning Gibbous6Fri
7Sat5:504.04:434.011:321.611:250.27:245:04Waning Gibbous7Sat
8Sun6:214.05:463.612:321.57:245:05Third Quarter8Sun
9Mon6:554.27:073.312:080.41:441.37:245:06Third Quarter9Mon
10Tue7:354.48:393.212:570.73:001.07:245:07Third Quarter10Tue
11Wed8:204.610:003.31:511.04:090.77:245:08Third Quarter11Wed
12Thu9:095.011:083.62:491.35:100.37:235:09Waning Crescent12Thu
13Fri9:595.33:491.66:050.07:235:10Waning Crescent13Fri
14Sat12:073.810:50 AM5.64:501.86:56-0.27:235:11Waning Crescent14Sat
15Sun1:014.111:41 AM5.85:501.97:44-0.47:235:12New Moon15Sun
16Mon1:514.312:335.86:501.98:30-0.57:225:13New Moon16Mon
17Tue2:394.41:265.87:491.89:14-0.57:225:14New Moon17Tue
18Wed3:254.52:205.68:471.69:56-0.47:215:15Waxing Crescent18Wed
19Thu4:104.63:175.29:451.410:37-0.37:215:16Waxing Crescent19Thu
20Fri4:564.64:174.810:451.311:18-0.17:205:17Waxing Crescent20Fri
21Sat5:424.65:244.311:491.17:205:18Waxing Crescent21Sat
22Sun6:304.76:403.812:010.212:591.07:195:20First Quarter22Sun
23Mon7:214.78:003.512:480.62:130.87:195:21First Quarter23Mon
24Tue8:134.79:153.51:410.93:240.67:185:22First Quarter24Tue
25Wed9:054.810:243.62:381.24:290.37:175:23Waxing Gibbous25Wed
26Thu9:544.811:233.83:361.55:260.17:175:24Waxing Gibbous26Thu
27Fri10:384.94:321.76:16-0.17:165:25Waxing Gibbous27Fri
28Sat12:164.011:18 AM4.95:251.87:00-0.17:155:26Waxing Gibbous28Sat
29Sun1:034.211:55 AM5.06:131.97:39-0.17:155:27Full Moon29Sun
30Mon1:464.212:295.06:581.98:130.07:145:28Full Moon30Mon
31Tue2:254.31:024.97:401.98:430.07:135:30Full Moon31Tue
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 1:10 pm — 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 99% 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 Full Moon (99% 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