Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 12:56 pm (1.3 ft)
Next high tide : in 1h 27m at 7:39 am (3.4 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Aug 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:543.66:360.44:522.56:118:17Waning Crescent1Sun
2Mon1:483.97:290.15:582.66:118:16Waning Crescent2Mon
3Tue2:364.18:17-0.17:022.56:128:15New Moon3Tue
4Wed12:466.03:194.29:01-0.28:052.36:138:14New Moon4Wed
5Thu1:436.04:004.39:42-0.39:042.06:148:13New Moon5Thu
6Fri2:395.94:384.410:20-0.310:021.66:158:12Waxing Crescent6Fri
7Sat3:365.65:164.510:56-0.211:011.36:168:11Waxing Crescent7Sat
8Sun4:345.15:544.711:310.06:178:10Waxing Crescent8Sun
9Mon5:364.66:334.812:011.112:060.36:188:09Waxing Crescent9Mon
10Tue6:464.17:154.91:070.912:440.76:188:07First Quarter10Tue
11Wed8:033.78:015.02:190.81:281.16:198:06First Quarter11Wed
12Thu9:243.58:535.13:340.62:201.66:208:05First Quarter12Thu
13Fri10:403.69:495.14:450.43:222.06:218:04Waxing Gibbous13Fri
14Sat11:483.810:455.15:490.24:302.36:228:02Waxing Gibbous14Sat
15Sun12:464.16:440.05:352.46:238:01Waxing Gibbous15Sun
16Mon1:354.37:320.06:332.46:248:00Waxing Gibbous16Mon
17Tue12:245.12:204.48:15-0.17:252.36:257:59Full Moon17Tue
18Wed1:065.12:594.48:520.08:112.26:257:57Full Moon18Wed
19Thu1:445.03:344.39:240.08:542.06:267:56Full Moon19Thu
20Fri2:214.94:044.39:500.19:331.86:277:55Full Moon20Fri
21Sat2:584.74:274.310:100.210:111.66:287:53Full Moon21Sat
22Sun3:374.54:444.310:270.310:471.46:297:52Waning Gibbous22Sun
23Mon4:184.24:594.410:470.511:251.36:307:50Waning Gibbous23Mon
24Tue5:063.95:204.611:140.76:317:49Waning Gibbous24Tue
25Wed6:033.65:514.912:081.211:48 AM1.06:327:48Waning Gibbous25Wed
26Thu7:223.36:305.01:031.112:301.56:327:46Third Quarter26Thu
27Fri9:003.27:185.12:201.11:211.96:337:45Third Quarter27Fri
28Sat10:263.38:165.23:530.92:222.36:347:43Third Quarter28Sat
29Sun11:363.59:235.35:090.63:352.56:357:42Waning Crescent29Sun
30Mon12:323.86:100.34:512.46:367:40Waning Crescent30Mon
31Tue1:194.07:010.16:002.26:377:39Waning Crescent31Tue
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 10:17 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 neap phase. Tonight's moon is 53% 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 minimum.

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 Third Quarter (53% illuminated). This places Port Chicago, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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