Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 06m at 2:37 pm (1.6 ft)
Next high tide : 9:22 pm (4.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Aug 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:363.49:285.25:280.73:242.46:108:18Waxing Gibbous1Sun
2Mon12:353.66:230.44:302.66:118:17Waxing Gibbous2Mon
3Tue1:263.87:120.25:352.66:128:16Waxing Gibbous3Tue
4Wed2:094.07:550.06:362.56:138:15Waxing Gibbous4Wed
5Thu12:205.62:484.18:35-0.27:332.26:148:14Full Moon5Thu
6Fri1:145.73:234.29:10-0.28:271.96:148:13Full Moon6Fri
7Sat2:075.63:554.39:44-0.39:211.66:158:11Full Moon7Sat
8Sun2:595.44:264.510:15-0.210:151.36:168:10Waning Gibbous8Sun
9Mon3:535.14:584.810:460.011:111.06:178:09Waning Gibbous9Mon
10Tue4:514.75:315.011:190.36:188:08Waning Gibbous10Tue
11Wed5:564.26:095.212:120.911:56 AM0.76:198:07Third Quarter11Wed
12Thu7:123.86:545.31:210.812:381.16:208:06Third Quarter12Thu
13Fri8:373.57:465.32:390.71:301.66:218:04Third Quarter13Fri
14Sat10:003.58:485.33:580.62:342.06:218:03Third Quarter14Sat
15Sun11:133.79:565.35:100.43:482.26:228:02Waning Crescent15Sun
16Mon12:154.06:120.25:022.36:238:01Waning Crescent16Mon
17Tue1:084.27:040.06:082.26:247:59Waning Crescent17Tue
18Wed1:544.47:49-0.17:052.16:257:58Waning Crescent18Wed
19Thu12:495.22:354.48:290.07:571.96:267:57New Moon19Thu
20Fri1:345.03:124.49:030.08:441.76:277:55New Moon20Fri
21Sat2:154.93:444.49:310.29:281.56:287:54New Moon21Sat
22Sun2:564.64:104.49:530.410:101.46:287:53New Moon22Sun
23Mon3:374.44:284.410:100.510:501.26:297:51Waxing Crescent23Mon
24Tue4:204.14:424.510:270.711:311.16:307:50Waxing Crescent24Tue
25Wed5:093.84:584.710:521.06:317:48Waxing Crescent25Wed
26Thu6:083.55:244.812:161.111:25 AM1.36:327:47Waxing Crescent26Thu
27Fri7:223.36:004.91:111.112:051.76:337:46First Quarter27Fri
28Sat8:463.26:465.02:231.012:542.06:347:44First Quarter28Sat
29Sun10:053.37:424.93:410.91:542.36:357:43First Quarter29Sun
30Mon11:113.58:504.94:500.73:062.56:357:41First Quarter30Mon
31Tue12:043.75:460.44:212.46:367:40Waxing Gibbous31Tue
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 5:59 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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