Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 06m at 1:49 pm (1.8 ft)
Next high tide : 8:02 pm (5.5 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Jan 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:143.711:35 AM5.25:452.27:50-0.27:244:59New Moon1Tue
2Wed2:013.912:055.36:292.38:28-0.27:244:59New Moon2Wed
3Thu2:454.012:415.47:142.49:03-0.27:245:00New Moon3Thu
4Fri3:274.01:225.47:592.39:34-0.37:245:01New Moon4Fri
5Sat4:054.02:065.38:452.210:04-0.37:245:02Waxing Crescent5Sat
6Sun4:414.02:545.19:322.010:34-0.37:245:03Waxing Crescent6Sun
7Mon5:154.03:464.810:231.811:07-0.37:245:04Waxing Crescent7Mon
8Tue5:504.04:444.311:191.611:46-0.17:245:05Waxing Crescent8Tue
9Wed6:274.15:533.912:251.47:245:06First Quarter9Wed
10Thu7:084.47:203.512:290.21:441.17:245:07First Quarter10Thu
11Fri7:524.68:553.31:190.63:070.87:245:08First Quarter11Fri
12Sat8:404.910:183.42:141.04:210.47:245:09Waxing Gibbous12Sat
13Sun9:295.211:293.63:121.45:270.17:235:10Waxing Gibbous13Sun
14Mon10:195.54:131.86:25-0.27:235:11Waxing Gibbous14Mon
15Tue12:313.911:09 AM5.75:142.07:18-0.37:235:12Waxing Gibbous15Tue
16Wed1:264.111:58 AM5.76:152.28:06-0.47:225:13Full Moon16Wed
17Thu2:184.312:475.77:142.28:51-0.47:225:14Full Moon17Thu
18Fri3:064.41:365.58:102.19:33-0.47:225:15Full Moon18Fri
19Sat3:524.42:245.29:042.010:10-0.37:215:16Waning Gibbous19Sat
20Sun4:344.43:144.99:571.810:44-0.17:215:17Waning Gibbous20Sun
21Mon5:154.34:064.410:501.611:150.17:205:18Waning Gibbous21Mon
22Tue5:554.35:053.911:471.411:460.37:205:19Waning Gibbous22Tue
23Wed6:334.26:153.512:501.37:195:20Third Quarter23Wed
24Thu7:124.27:343.212:190.61:591.17:185:21Third Quarter24Thu
25Fri7:504.38:543.112:581.03:090.87:185:22Third Quarter25Fri
26Sat8:294.410:073.21:461.44:130.57:175:24Third Quarter26Sat
27Sun9:094.611:113.42:401.75:100.37:165:25Waning Crescent27Sun
28Mon9:484.83:382.16:000.17:165:26Waning Crescent28Mon
29Tue12:063.710:28 AM4.94:342.36:45-0.17:155:27Waning Crescent29Tue
30Wed12:543.911:08 AM5.15:282.37:25-0.27:145:28Waning Crescent30Wed
31Thu1:384.111:50 AM5.26:182.38:02-0.27:135:29New Moon31Thu
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 4:55 pm — 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 42% 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 (42% 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