Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 09m at 12:56 pm (1.3 ft)
Next high tide : 7:10 pm (5.3 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 - May 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:453.610:413.92:532.24:070.16:117:59Third Quarter1Sat
2Sun9:233.411:234.04:071.84:520.16:107:59Third Quarter2Sun
3Mon10:403.411:584.25:101.45:300.16:098:00Waning Crescent3Mon
4Tue11:423.46:041.06:030.36:078:01Waning Crescent4Tue
5Wed12:284.312:363.46:530.66:310.66:068:02Waning Crescent5Wed
6Thu12:504.51:273.47:380.36:570.96:058:03Waning Crescent6Thu
7Fri1:074.72:173.58:200.17:251.26:048:04New Moon7Fri
8Sat1:245.03:083.59:010.07:581.56:038:05New Moon8Sat
9Sun1:485.34:013.69:42-0.18:371.86:028:06New Moon9Sun
10Mon2:205.54:573.610:24-0.29:212.16:018:07New Moon10Mon
11Tue2:595.75:563.611:08-0.210:122.26:008:08Waxing Crescent11Tue
12Wed3:445.66:563.611:58-0.211:102.35:598:09Waxing Crescent12Wed
13Thu4:355.47:563.712:55-0.25:588:09Waxing Crescent13Thu
14Fri5:345.08:523.812:182.31:56-0.25:588:10First Quarter14Fri
15Sat6:454.59:443.91:372.12:56-0.25:578:11First Quarter15Sat
16Sun8:134.110:324.23:011.83:51-0.25:568:12First Quarter16Sun
17Mon9:433.911:144.44:171.34:400.05:558:13Waxing Gibbous17Mon
18Tue11:003.811:524.75:250.75:240.25:548:14Waxing Gibbous18Tue
19Wed12:063.76:250.36:040.55:538:15Waxing Gibbous19Wed
20Thu12:265.01:073.87:20-0.16:410.95:538:15Waxing Gibbous20Thu
21Fri12:575.22:043.88:13-0.37:181.35:528:16Full Moon21Fri
22Sat1:255.33:013.89:02-0.47:571.75:518:17Full Moon22Sat
23Sun1:525.43:563.99:50-0.48:382.15:518:18Full Moon23Sun
24Mon2:205.44:513.910:35-0.49:222.35:508:19Full Moon24Mon
25Tue2:515.35:454.011:19-0.310:112.55:508:19Waning Gibbous25Tue
26Wed3:285.16:384.012:02-0.25:498:20Waning Gibbous26Wed
27Thu4:104.87:293.912:44-0.15:488:21Waning Gibbous27Thu
28Fri4:584.58:183.912:022.41:26-0.15:488:22Waning Gibbous28Fri
29Sat5:554.09:053.91:072.32:090.05:478:22Third Quarter29Sat
30Sun7:063.69:474.02:192.02:510.15:478:23Third Quarter30Sun
31Mon8:343.210:254.13:311.73:310.25:478:24Third Quarter31Mon
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 4:03 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 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