Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 23m at 10:52 pm (1.5 ft)
Next high tide (tomorrow) : 4:22 am (4.5 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (90% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Oct 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:004.312:594.87:030.87:520.46:035:52Full Moon1Sat
2Sun1:494.21:255.17:351.08:370.36:045:50Full Moon2Sun
3Mon2:414.21:575.48:111.29:250.26:055:49Waning Gibbous3Mon
4Tue3:374.02:355.58:521.410:180.26:065:47Waning Gibbous4Tue
5Wed4:403.93:205.59:401.611:180.26:075:46Waning Gibbous5Wed
6Thu5:483.74:115.310:351.86:075:44Waning Gibbous6Thu
7Fri6:583.75:125.012:260.211:40 AM1.96:085:43Third Quarter7Fri
8Sat8:063.86:294.61:380.212:591.96:095:41Third Quarter8Sat
9Sun9:073.97:594.42:440.22:221.76:105:40Third Quarter9Sun
10Mon10:014.29:224.33:430.13:371.36:115:38Waning Crescent10Mon
11Tue10:484.410:294.34:330.14:420.96:125:37Waning Crescent11Tue
12Wed11:294.611:274.25:170.25:390.56:135:36Waning Crescent12Wed
13Thu12:064.75:560.46:320.36:145:34Waning Crescent13Thu
14Fri12:204.212:394.86:320.67:220.16:155:33New Moon14Fri
15Sat1:104.11:064.97:031.08:080.16:165:31New Moon15Sat
16Sun1:594.11:284.97:331.38:530.16:175:30New Moon16Sun
17Mon2:494.01:494.98:041.69:360.16:185:28Waxing Crescent17Mon
18Tue3:403.92:124.98:371.810:180.26:195:27Waxing Crescent18Tue
19Wed4:323.82:434.99:161.911:000.26:205:26Waxing Crescent19Wed
20Thu5:273.73:214.710:012.011:450.36:215:24Waxing Crescent20Thu
21Fri6:233.74:074.510:532.16:225:23Waxing Crescent21Fri
22Sat7:193.65:024.212:350.311:54 AM2.06:235:22First Quarter22Sat
23Sun8:133.66:093.91:280.31:041.96:245:20First Quarter23Sun
24Mon9:013.77:323.62:200.32:171.76:255:19First Quarter24Mon
25Tue9:443.88:563.63:070.33:241.36:265:18First Quarter25Tue
26Wed10:194.010:063.63:490.34:220.96:275:17Waxing Gibbous26Wed
27Thu10:494.311:063.74:260.55:150.66:285:15Waxing Gibbous27Thu
28Fri11:154.65:010.76:050.36:295:14Waxing Gibbous28Fri
29Sat12:023.811:40 AM4.95:360.96:530.16:305:13Full Moon29Sat
30Sun12:563.912:095.36:141.27:41-0.16:315:12Full Moon30Sun
31Mon1:504.012:445.56:561.58:31-0.26:325:11Full Moon31Mon
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 1:37 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 spring phase. Tonight's moon is 90% 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 (90% 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