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 6h 11m at 2:13 pm (0.2 ft)
Next high tide : 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 - Aug 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:595.44:304.510:12-0.110:201.46:118:17Waxing Crescent1Mon
2Tue3:515.15:024.710:430.111:151.16:118:16Waxing Crescent2Tue
3Wed4:484.85:364.911:160.36:128:15Waxing Crescent3Wed
4Thu5:514.36:155.112:151.011:54 AM0.66:138:14First Quarter4Thu
5Fri7:053.97:015.21:240.912:381.06:148:13First Quarter5Fri
6Sat8:283.67:555.32:400.81:311.46:158:12First Quarter6Sat
7Sun9:493.68:585.33:570.62:341.86:168:11First Quarter7Sun
8Mon11:033.710:065.35:070.43:462.06:178:10Waxing Gibbous8Mon
9Tue12:064.06:080.24:592.16:178:09Waxing Gibbous9Tue
10Wed1:004.27:010.06:052.16:188:08Waxing Gibbous10Wed
11Thu12:055.31:484.47:48-0.17:042.06:198:06Waxing Gibbous11Thu
12Fri12:555.32:314.58:29-0.17:571.96:208:05Full Moon12Fri
13Sat1:405.13:104.59:060.08:461.76:218:04Full Moon13Sat
14Sun2:234.93:454.59:370.29:321.66:228:03Full Moon14Sun
15Mon3:044.74:144.510:040.310:151.46:238:02Waning Gibbous15Mon
16Tue3:464.54:384.510:260.510:571.36:248:00Waning Gibbous16Tue
17Wed4:314.24:584.610:470.711:401.26:247:59Waning Gibbous17Wed
18Thu5:213.95:194.711:121.06:257:58Waning Gibbous18Thu
19Fri6:213.65:474.812:271.211:46 AM1.26:267:56Waning Gibbous19Fri
20Sat7:353.46:244.91:241.112:271.66:277:55Third Quarter20Sat
21Sun8:553.37:114.92:361.11:171.96:287:54Third Quarter21Sun
22Mon10:103.38:074.93:500.92:192.16:297:52Third Quarter22Mon
23Tue11:143.59:124.94:550.73:282.36:307:51Third Quarter23Tue
24Wed12:073.75:500.54:372.26:317:49Waning Crescent24Wed
25Thu12:523.96:360.35:402.06:317:48Waning Crescent25Thu
26Fri1:314.17:170.16:371.86:327:47Waning Crescent26Fri
27Sat12:195.32:064.27:540.17:311.56:337:45New Moon27Sat
28Sun1:135.32:374.48:270.18:231.26:347:44New Moon28Sun
29Mon2:055.33:074.69:000.29:150.96:357:42New Moon29Mon
30Tue2:585.13:374.99:320.310:090.76:367:41Waxing Crescent30Tue
31Wed3:534.94:095.110:060.611:040.66:377:39Waxing Crescent31Wed
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 5:36 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 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