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 3h 07m 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 - Apr 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:094.210:293.81:512.34:070.26:527:31Third Quarter1Thu
2Fri8:353.911:233.93:162.35:050.16:517:32Third Quarter2Fri
3Sat10:073.84:332.15:530.06:497:33Waning Crescent3Sat
4Sun12:094.111:16 AM3.95:361.76:34-0.16:487:34Waning Crescent4Sun
5Mon12:484.212:093.96:281.47:080.06:467:34Waning Crescent5Mon
6Tue1:214.212:563.97:151.07:370.16:457:35Waning Crescent6Tue
7Wed1:494.31:393.97:570.78:010.36:437:36New Moon7Wed
8Thu2:094.32:213.88:370.58:210.66:427:37New Moon8Thu
9Fri2:244.53:053.79:140.38:440.86:407:38New Moon9Fri
10Sat2:384.73:513.69:500.29:111.16:397:39New Moon10Sat
11Sun3:005.04:433.510:260.19:451.46:377:40Waxing Crescent11Sun
12Mon3:305.35:433.411:050.110:261.76:367:41Waxing Crescent12Mon
13Tue4:085.46:523.411:520.111:142.06:347:42Waxing Crescent13Tue
14Wed4:525.38:073.312:550.16:337:43Waxing Crescent14Wed
15Thu5:455.19:183.412:132.22:150.16:327:44First Quarter15Thu
16Fri6:504.710:193.61:282.33:320.16:307:45First Quarter16Fri
17Sat8:124.411:103.92:572.24:36-0.16:297:46First Quarter17Sat
18Sun9:454.311:544.14:211.85:28-0.26:277:46Waxing Gibbous18Sun
19Mon11:064.35:301.36:13-0.26:267:47Waxing Gibbous19Mon
20Tue12:334.412:124.36:310.76:530.06:257:48Waxing Gibbous20Tue
21Wed1:084.61:104.37:260.37:300.26:237:49Waxing Gibbous21Wed
22Thu1:404.82:054.28:180.08:040.56:227:50Full Moon22Thu
23Fri2:095.03:004.19:09-0.28:370.96:217:51Full Moon23Fri
24Sat2:355.13:554.09:58-0.39:111.36:197:52Full Moon24Sat
25Sun3:015.24:533.910:46-0.39:491.76:187:53Waning Gibbous25Sun
26Mon3:295.25:533.811:35-0.210:312.06:177:54Waning Gibbous26Mon
27Tue4:015.06:553.712:26-0.16:167:55Waning Gibbous27Tue
28Wed4:404.87:573.71:200.06:147:56Waning Gibbous28Wed
29Thu5:264.48:573.812:202.42:170.16:137:57Third Quarter29Thu
30Fri6:254.09:523.81:322.43:140.16:127:58Third Quarter30Fri
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 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