Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 10:48 am (0.2 ft)
Next high tide : in 2h 43m at 3:59 am (4.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:154.75:543.311:460.710:491.46:396:01Waxing Crescent1Wed
2Thu4:434.77:113.212:480.76:386:02First Quarter2Thu
3Fri5:204.78:293.22:020.76:376:03First Quarter3Fri
4Sat6:074.69:403.412:282.23:140.66:356:04First Quarter4Sat
5Sun7:094.410:393.61:422.44:160.46:346:05First Quarter5Sun
6Mon8:254.411:273.83:032.45:060.26:326:06Waxing Gibbous6Mon
7Tue9:394.44:122.25:480.06:316:07Waxing Gibbous7Tue
8Wed12:073.910:40 AM4.55:101.96:24-0.16:296:08Waxing Gibbous8Wed
9Thu12:424.011:33 AM4.65:591.66:55-0.16:286:09Waxing Gibbous9Thu
10Fri1:114.112:204.66:451.27:210.06:266:10Full Moon10Fri
11Sat1:354.21:074.67:290.97:450.16:256:11Full Moon11Sat
12Sun1:544.41:554.58:130.68:110.36:236:12Full Moon12Sun
13Mon2:134.72:454.38:570.48:400.66:226:13Waning Gibbous13Mon
14Tue2:385.03:414.09:440.29:140.96:206:14Waning Gibbous14Tue
15Wed3:095.24:443.710:380.29:541.36:196:15Waning Gibbous15Wed
16Thu3:475.46:013.511:420.310:411.76:176:16Waning Gibbous16Thu
17Fri4:335.37:243.41:000.36:166:16Third Quarter17Fri
18Sat5:295.18:443.52:220.36:146:17Third Quarter18Sat
19Sun6:414.89:513.712:592.33:340.16:136:18Third Quarter19Sun
20Mon8:184.510:474.02:352.24:35-0.16:116:19Waning Crescent20Mon
21Tue9:474.511:344.23:581.95:25-0.36:106:20Waning Crescent21Tue
22Wed10:554.55:051.56:08-0.36:086:21Waning Crescent22Wed
23Thu12:154.411:50 AM4.56:021.16:46-0.26:076:22Waning Crescent23Thu
24Fri12:514.512:394.46:530.77:190.06:056:23New Moon24Fri
25Sat1:234.61:264.27:400.57:470.36:036:24New Moon25Sat
26Sun1:504.62:124.08:250.38:120.66:026:25New Moon26Sun
27Mon2:114.72:593.99:070.28:351.06:006:26New Moon27Mon
28Tue2:284.83:503.79:480.29:011.35:596:27Waxing Crescent28Tue
29Wed2:474.94:453.510:280.39:331.65:576:28Waxing Crescent29Wed
30Thu3:134.95:483.411:120.310:131.95:566:29Waxing Crescent30Thu
31Fri3:464.96:563.312:030.45:546:29Waxing Crescent31Fri
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 7:23 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 12% 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 Waxing Crescent (12% 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