Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 42m at 2:11 am (1.3 ft)
Next high tide : 7:33 am (3.8 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 - Oct 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:493.35:445.112:500.612:032.17:046:50First Quarter1Tue
2Wed9:073.46:424.92:110.61:062.37:056:49First Quarter2Wed
3Thu10:143.57:544.73:330.42:242.37:066:47First Quarter3Thu
4Fri11:093.79:214.64:400.23:492.17:076:46First Quarter4Fri
5Sat11:553.910:454.75:350.05:041.87:086:44Waxing Gibbous5Sat
6Sun12:354.16:22-0.16:081.37:096:43Waxing Gibbous6Sun
7Mon1:114.47:03-0.17:060.87:096:41Waxing Gibbous7Mon
8Tue12:564.71:454.67:410.08:010.57:106:40Full Moon8Tue
9Wed1:534.72:164.88:170.38:540.27:116:38Full Moon9Wed
10Thu2:494.52:475.08:530.69:470.07:126:37Full Moon10Thu
11Fri3:464.33:185.29:291.010:41-0.17:136:35Waning Gibbous11Fri
12Sat4:464.13:515.310:081.311:360.07:146:34Waning Gibbous12Sat
13Sun5:503.94:285.210:511.77:156:32Waning Gibbous13Sun
14Mon6:583.85:105.012:340.111:41 AM2.07:166:31Waning Gibbous14Mon
15Tue8:063.86:014.61:370.212:432.27:176:30Third Quarter15Tue
16Wed9:123.97:094.32:420.21:562.37:186:28Third Quarter16Wed
17Thu10:114.08:364.03:450.23:142.17:196:27Third Quarter17Thu
18Fri11:024.19:583.94:400.14:241.87:206:25Third Quarter18Fri
19Sat11:464.211:043.85:270.15:251.47:216:24Waning Crescent19Sat
20Sun12:254.36:060.16:171.07:226:23Waning Crescent20Sun
21Mon12:574.36:390.27:040.77:236:21Waning Crescent21Mon
22Tue12:463.81:244.47:070.47:480.57:246:20Waning Crescent22Tue
23Wed1:313.81:424.47:290.78:300.37:256:19New Moon23Wed
24Thu2:163.71:544.67:491.09:090.27:266:18New Moon24Thu
25Fri3:023.72:074.88:141.39:460.27:276:16New Moon25Fri
26Sat3:503.62:305.18:441.510:230.17:286:15New Moon26Sat
27Sun4:423.63:025.39:211.811:010.17:296:14Waxing Crescent27Sun
28Mon5:393.53:415.310:042.011:460.17:306:13Waxing Crescent28Mon
29Tue6:413.54:275.210:542.27:316:12Waxing Crescent29Tue
30Wed7:463.55:205.012:430.111:54 AM2.37:326:10First Quarter30Wed
31Thu8:483.56:254.61:500.11:052.37:336:09First Quarter31Thu
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 4:52 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