38.0560’ N, 122.0395’ W

Port Chicago, CA

65°
H -°
L 57°
SW
11mph
Low tide
10:34 pm

Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 30, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 1h 38m at 10:34 pm (0.9 ft)
Next high tide (tomorrow) : 4:23 am (4.2 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Oct 1905

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:254.63:065.29:150.910:270.16:035:52Waxing Crescent1Sun
2Mon4:274.33:495.110:011.111:280.26:045:50Waxing Crescent2Mon
3Tue5:344.14:385.010:521.46:055:49First Quarter3Tue
4Wed6:454.05:374.712:340.211:53 AM1.66:065:47First Quarter4Wed
5Thu7:554.06:534.51:420.21:051.76:075:46First Quarter5Thu
6Fri9:004.18:164.32:490.12:221.76:085:44First Quarter6Fri
7Sat9:584.39:304.33:490.13:341.56:085:43Waxing Gibbous7Sat
8Sun10:494.410:314.34:410.04:361.26:095:41Waxing Gibbous8Sun
9Mon11:334.511:244.35:270.05:311.06:105:40Waxing Gibbous9Mon
10Tue12:124.66:070.26:210.86:115:38Waxing Gibbous10Tue
11Wed12:114.212:474.66:430.47:070.66:125:37Full Moon11Wed
12Thu12:554.21:154.67:140.67:490.56:135:35Full Moon12Thu
13Fri1:374.11:374.67:400.88:280.56:145:34Full Moon13Fri
14Sat2:204.01:534.68:041.19:050.56:155:32Full Moon14Sat
15Sun3:033.82:104.78:301.29:390.46:165:31Waning Gibbous15Sun
16Mon3:503.72:364.89:011.410:110.46:175:30Waning Gibbous16Mon
17Tue4:403.63:104.89:391.610:450.46:185:28Waning Gibbous17Tue
18Wed5:373.53:514.710:241.711:270.46:195:27Waning Gibbous18Wed
19Thu6:393.54:394.611:161.86:205:26Third Quarter19Thu
20Fri7:413.55:364.412:240.412:191.96:215:24Third Quarter20Fri
21Sat8:403.66:454.21:330.41:311.86:225:23Third Quarter21Sat
22Sun9:313.88:054.12:400.32:461.66:235:22Third Quarter22Sun
23Mon10:164.09:254.23:360.23:531.36:245:20Waning Crescent23Mon
24Tue10:554.210:334.34:250.24:530.96:255:19Waning Crescent24Tue
25Wed11:304.511:354.45:090.35:490.56:265:18Waning Crescent25Wed
26Thu12:034.85:510.46:430.26:275:16New Moon26Thu
27Fri12:324.512:365.06:330.67:360.06:285:15New Moon27Fri
28Sat1:294.51:115.27:150.88:29-0.26:295:14New Moon28Sat
29Sun2:264.41:485.48:001.19:22-0.36:305:13New Moon29Sun
30Mon3:254.32:295.48:481.310:16-0.36:315:12Waxing Crescent30Mon
31Tue4:264.23:145.29:391.511:12-0.26:325:11Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415144)

Common Questions About Port Chicago, CA Tides

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Is this week a spring tide or neap tide in Port Chicago, CA?

Port Chicago, CA is currently in a spring phase. Tonight's moon is 93% 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 maximum.

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 Waning Gibbous (93% illuminated). This places Port Chicago, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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