Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 11:36 am (0.4 ft)
Next high tide : in 56m at 5:14 am (4.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:504.311:56 AM5.06:141.67:21-0.36:396:01Full Moon1Sun
2Mon1:294.412:474.97:071.27:56-0.26:376:02Full Moon2Mon
3Tue2:044.51:344.77:570.98:260.06:366:03Full Moon3Tue
4Wed2:354.52:214.58:440.78:510.36:346:04Full Moon4Wed
5Thu3:014.63:084.29:290.69:140.66:336:05Waning Gibbous5Thu
6Fri3:224.63:593.910:140.59:370.96:316:06Waning Gibbous6Fri
7Sat3:414.74:573.611:010.510:061.26:306:07Waning Gibbous7Sat
8Sun5:034.77:043.412:540.57:297:08Waning Gibbous8Sun
9Mon5:324.78:193.31:560.67:277:09Third Quarter9Mon
10Tue6:114.69:343.312:292.03:080.67:267:10Third Quarter10Tue
11Wed7:024.510:413.51:302.34:170.57:247:11Third Quarter11Wed
12Thu8:104.311:363.72:472.45:150.37:237:12Third Quarter12Thu
13Fri9:334.24:092.36:040.17:217:13Waning Crescent13Fri
14Sat12:223.810:50 AM4.35:172.16:45-0.17:207:14Waning Crescent14Sat
15Sun1:003.911:50 AM4.46:131.77:19-0.17:187:15Waning Crescent15Sun
16Mon1:334.012:414.47:021.47:49-0.17:177:16Waning Crescent16Mon
17Tue2:004.11:294.47:471.08:160.17:157:17New Moon17Tue
18Wed2:224.32:164.48:310.78:410.37:137:18New Moon18Wed
19Thu2:424.63:054.39:140.49:080.57:127:19New Moon19Thu
20Fri3:044.93:574.19:590.29:400.87:107:20Waxing Crescent20Fri
21Sat3:325.24:553.810:460.110:161.27:097:21Waxing Crescent21Sat
22Sun4:075.46:033.611:410.110:591.57:077:22Waxing Crescent22Sun
23Mon4:485.47:223.412:470.27:067:22Waxing Crescent23Mon
24Tue5:365.38:443.42:080.37:047:23First Quarter24Tue
25Wed6:365.09:583.612:582.23:280.27:037:24First Quarter25Wed
26Thu7:554.611:003.82:252.24:380.07:017:25First Quarter26Thu
27Fri9:314.411:514.13:562.15:36-0.17:007:26Waxing Gibbous27Fri
28Sat10:554.45:121.76:23-0.26:587:27Waxing Gibbous28Sat
29Sun12:364.311:59 AM4.46:151.27:05-0.26:577:28Waxing Gibbous29Sun
30Mon1:154.512:544.37:100.87:40-0.16:557:29Waxing Gibbous30Mon
31Tue1:504.61:434.28:000.58:110.26:547:30Full Moon31Tue
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 8:25 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 74% 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 Waning Gibbous (74% 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