Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 1:32 pm (-0.1 ft)
Next high tide : in 41m at 6:17 am (4.3 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - May 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:415.37:503.71:09-0.26:107:59Waning Gibbous1Tue
2Wed5:385.08:543.812:152.22:15-0.26:098:00Third Quarter2Wed
3Thu6:514.59:534.01:372.23:20-0.26:088:01Third Quarter3Thu
4Fri8:264.110:454.23:051.94:18-0.26:078:02Third Quarter4Fri
5Sat10:003.911:314.44:241.55:09-0.26:068:03Waning Crescent5Sat
6Sun11:143.95:321.05:540.06:058:04Waning Crescent6Sun
7Mon12:114.612:163.86:310.56:330.26:048:05Waning Crescent7Mon
8Tue12:474.81:123.87:240.17:090.56:038:06Waning Crescent8Tue
9Wed1:194.92:053.88:14-0.17:420.96:028:07New Moon9Wed
10Thu1:455.02:563.79:01-0.28:141.36:018:08New Moon10Thu
11Fri2:075.13:483.79:45-0.28:461.76:008:08New Moon11Fri
12Sat2:285.14:413.710:26-0.29:212.05:598:09New Moon12Sat
13Sun2:525.15:343.811:06-0.110:022.25:588:10Waxing Crescent13Sun
14Mon3:235.16:283.711:45-0.110:482.35:578:11Waxing Crescent14Mon
15Tue4:004.97:223.712:240.05:568:12Waxing Crescent15Tue
16Wed4:444.78:153.71:050.05:558:13Waxing Crescent16Wed
17Thu5:364.39:063.712:422.31:510.05:558:14First Quarter17Thu
18Fri6:383.99:523.81:512.22:390.15:548:15First Quarter18Fri
19Sat7:533.610:323.93:051.93:260.15:538:15First Quarter19Sat
20Sun9:183.411:064.14:131.54:080.25:528:16First Quarter20Sun
21Mon10:373.411:334.35:141.14:470.45:528:17Waxing Gibbous21Mon
22Tue11:443.411:564.66:080.75:240.65:518:18Waxing Gibbous22Tue
23Wed12:463.56:590.36:011.05:508:19Waxing Gibbous23Wed
24Thu12:195.01:443.67:490.06:411.45:508:19Waxing Gibbous24Thu
25Fri12:475.42:423.78:38-0.27:241.75:498:20Full Moon25Fri
26Sat1:215.73:413.89:27-0.48:132.05:498:21Full Moon26Sat
27Sun2:015.94:393.910:17-0.59:062.25:488:22Full Moon27Sun
28Mon2:465.95:384.011:08-0.510:052.35:488:22Waning Gibbous28Mon
29Tue3:365.76:354.012:00-0.55:478:23Waning Gibbous29Tue
30Wed4:315.47:324.112:54-0.55:478:24Waning Gibbous30Wed
31Thu5:354.98:264.212:212.21:48-0.45:478:25Third Quarter31Thu
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 9:54 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 transitional phase. Tonight's moon is 38% 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 (38% 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