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 3h 04m 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 (38% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Aug 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:364.46:074.211:250.26:118:17Waxing Crescent1Thu
2Fri5:264.06:254.312:081.611:51 AM0.46:128:16Waxing Crescent2Fri
3Sat6:253.66:494.51:001.512:250.76:138:15First Quarter3Sat
4Sun7:433.37:234.82:041.31:051.16:148:14First Quarter4Sun
5Mon9:183.18:065.03:221.21:521.66:158:13First Quarter5Mon
6Tue10:443.28:565.24:380.92:482.06:168:11First Quarter6Tue
7Wed11:563.59:535.55:440.63:502.46:168:10Waxing Gibbous7Wed
8Thu12:563.76:420.34:572.66:178:09Waxing Gibbous8Thu
9Fri1:474.07:330.16:042.66:188:08Waxing Gibbous9Fri
10Sat2:324.18:19-0.27:082.46:198:07Full Moon10Sat
11Sun12:555.93:134.29:02-0.38:102.16:208:06Full Moon11Sun
12Mon1:535.93:524.49:41-0.39:081.86:218:04Full Moon12Mon
13Tue2:495.74:294.510:19-0.310:061.46:228:03Waning Gibbous13Tue
14Wed3:455.45:064.610:54-0.211:041.16:238:02Waning Gibbous14Wed
15Thu4:444.95:434.811:290.16:238:01Waning Gibbous15Thu
16Fri5:484.46:214.912:051.012:050.46:247:59Waning Gibbous16Fri
17Sat7:004.07:045.01:120.812:450.96:257:58Third Quarter17Sat
18Sun8:203.67:525.12:250.71:321.46:267:57Third Quarter18Sun
19Mon9:413.68:475.13:410.62:291.86:277:55Third Quarter19Mon
20Tue10:553.79:475.14:520.43:372.16:287:54Waning Crescent20Tue
21Wed11:593.910:475.15:550.24:462.36:297:53Waning Crescent21Wed
22Thu12:534.26:480.15:492.36:307:51Waning Crescent22Thu
23Fri1:414.37:350.06:452.26:307:50Waning Crescent23Fri
24Sat12:295.12:234.48:150.07:352.16:317:48New Moon24Sat
25Sun1:115.03:004.48:500.08:211.96:327:47New Moon25Sun
26Mon1:504.93:334.39:190.19:031.76:337:46New Moon26Mon
27Tue2:284.74:004.39:410.29:421.56:347:44New Moon27Tue
28Wed3:054.64:194.29:580.310:191.46:357:43Waxing Crescent28Wed
29Thu3:454.34:314.310:140.510:551.26:367:41Waxing Crescent29Thu
30Fri4:284.14:444.510:370.611:341.16:367:40Waxing Crescent30Fri
31Sat5:183.85:084.711:070.96:377:38Waxing Crescent31Sat
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 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