Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 3:23 am (1.0 ft)
Next high tide : in 4h 40m at 9:00 pm (4.6 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:485.34:381.96:43-0.47:244:59Waning Crescent1Sat
2Sun12:434.011:33 AM5.45:372.17:31-0.47:244:59New Moon2Sun
3Mon1:344.212:155.36:322.28:14-0.47:245:00New Moon3Mon
4Tue2:214.312:565.27:252.18:54-0.37:245:01New Moon4Tue
5Wed3:044.31:375.08:142.19:29-0.37:245:02New Moon5Wed
6Thu3:444.32:184.79:011.99:59-0.27:245:03Waxing Crescent6Thu
7Fri4:214.23:004.49:471.710:240.07:245:04Waxing Crescent7Fri
8Sat4:554.23:464.110:341.610:470.17:245:05Waxing Crescent8Sat
9Sun5:264.24:393.711:241.411:130.37:245:06Waxing Crescent9Sun
10Mon5:554.25:453.312:221.37:245:07First Quarter10Mon
11Tue6:254.37:113.01:301.17:245:08First Quarter11Tue
12Wed6:584.48:402.912:261.02:440.97:235:09First Quarter12Wed
13Thu7:384.69:573.01:151.43:530.77:235:10First Quarter13Thu
14Fri8:244.811:023.32:121.84:520.47:235:11Waxing Gibbous14Fri
15Sat9:145.011:583.63:142.05:440.17:225:12Waxing Gibbous15Sat
16Sun10:055.24:152.26:30-0.17:225:13Waxing Gibbous16Sun
17Mon12:463.810:56 AM5.45:142.27:13-0.27:225:14Waxing Gibbous17Mon
18Tue1:294.011:47 AM5.66:102.17:51-0.37:215:15Full Moon18Tue
19Wed2:094.112:385.67:041.98:27-0.47:215:16Full Moon19Wed
20Thu2:454.21:295.57:571.69:01-0.47:205:17Full Moon20Thu
21Fri3:204.32:215.38:501.49:33-0.37:205:18Waning Gibbous21Fri
22Sat3:544.53:155.09:441.110:07-0.17:195:19Waning Gibbous22Sat
23Sun4:294.64:144.510:420.910:420.17:195:20Waning Gibbous23Sun
24Mon5:064.85:214.011:460.811:220.57:185:21Waning Gibbous24Mon
25Tue5:494.96:413.612:590.77:175:23Third Quarter25Tue
26Wed6:384.98:073.412:080.92:170.67:175:24Third Quarter26Wed
27Thu7:365.09:273.41:051.43:320.37:165:25Third Quarter27Thu
28Fri8:395.010:373.72:131.84:390.17:155:26Waning Crescent28Fri
29Sat9:425.011:373.93:272.05:37-0.17:155:27Waning Crescent29Sat
30Sun10:405.14:362.16:27-0.37:145:28Waning Crescent30Sun
31Mon12:284.211:30 AM5.15:372.07:11-0.37:135:29Waning Crescent31Mon
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 12:11 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 49% 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 First Quarter (49% 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