Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 32m at 5:23 pm (2.5 ft)
Next high tide : 11:18 pm (5.8 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jun 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:054.37:314.012:16-0.14:467:24First Quarter1Sun
2Mon6:134.08:164.21:061.61:070.14:467:25First Quarter2Mon
3Tue7:363.78:594.52:211.32:020.34:467:26First Quarter3Tue
4Wed9:023.69:404.83:330.92:560.54:457:26Waxing Gibbous4Wed
5Thu10:193.710:215.14:380.53:490.84:457:27Waxing Gibbous5Thu
6Fri11:263.811:015.45:380.24:421.14:457:28Waxing Gibbous6Fri
7Sat12:284.06:35-0.15:351.44:457:28Waxing Gibbous7Sat
8Sun1:274.17:28-0.36:291.74:447:29Full Moon8Sun
9Mon12:255.82:234.28:20-0.57:251.84:447:29Full Moon9Mon
10Tue1:095.83:194.39:09-0.58:231.94:447:30Full Moon10Tue
11Wed1:565.64:124.49:57-0.59:212.04:447:30Waning Gibbous11Wed
12Thu2:455.35:054.410:43-0.410:201.94:447:31Waning Gibbous12Thu
13Fri3:374.95:564.511:27-0.311:221.84:447:31Waning Gibbous13Fri
14Sat4:364.56:464.512:12-0.14:447:32Third Quarter14Sat
15Sun5:454.07:364.512:281.712:570.14:447:32Third Quarter15Sun
16Mon7:033.68:244.61:381.41:420.34:447:32Third Quarter16Mon
17Tue8:223.39:094.72:471.22:280.64:447:33Third Quarter17Tue
18Wed9:333.39:504.83:520.83:140.94:447:33Waning Crescent18Wed
19Thu10:373.310:264.94:500.53:581.24:457:33Waning Crescent19Thu
20Fri11:353.510:575.05:420.34:401.54:457:33Waning Crescent20Fri
21Sat12:283.66:300.15:211.84:457:34Waning Crescent21Sat
22Sun1:173.87:140.06:032.04:457:34New Moon22Sun
23Mon2:043.97:540.06:462.14:457:34New Moon23Mon
24Tue12:205.32:484.08:310.07:292.24:467:34New Moon24Tue
25Wed12:555.43:294.09:030.08:142.24:467:34New Moon25Wed
26Thu1:345.44:084.19:32-0.19:002.14:467:34Waxing Crescent26Thu
27Fri2:175.34:444.19:59-0.19:482.04:477:34Waxing Crescent27Fri
28Sat3:045.15:204.210:28-0.210:401.84:477:34Waxing Crescent28Sat
29Sun3:564.85:574.311:03-0.111:391.64:477:34Waxing Crescent29Sun
30Mon4:544.46:374.411:430.04:487:34First Quarter30Mon
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 8:20 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 12% 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 Waning Crescent (12% 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