Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Port Chicago, CA.
Next low tide : in 4h 37m at 5:39 am (0.4 ft)
Next high tide : 11:46 am (3.8 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Aug 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:163.97:070.25:332.46:118:17Waxing Gibbous1Thu
2Fri2:104.17:59-0.16:392.46:128:16Waxing Gibbous2Fri
3Sat12:316.02:584.38:48-0.27:442.36:138:15Full Moon3Sat
4Sun1:296.03:434.49:32-0.38:472.16:148:14Full Moon4Sun
5Mon2:265.94:264.510:14-0.49:471.86:158:13Full Moon5Mon
6Tue3:235.65:084.610:53-0.310:461.56:168:12Waning Gibbous6Tue
7Wed4:215.25:484.711:31-0.111:461.36:168:10Waning Gibbous7Wed
8Thu5:224.76:294.812:080.16:178:09Waning Gibbous8Thu
9Fri6:294.27:124.812:491.112:460.56:188:08Third Quarter9Fri
10Sat7:443.87:574.91:591.01:290.96:198:07Third Quarter10Sat
11Sun9:033.68:454.93:120.82:171.46:208:06Third Quarter11Sun
12Mon10:193.69:375.04:240.63:141.86:218:05Third Quarter12Mon
13Tue11:283.710:285.05:290.44:162.16:228:03Waning Crescent13Tue
14Wed12:274.06:250.25:172.36:238:02Waning Crescent14Wed
15Thu1:194.27:140.16:142.36:238:01Waning Crescent15Thu
16Fri12:025.12:054.37:580.07:052.36:248:00Waning Crescent16Fri
17Sat12:435.12:464.48:360.07:522.26:257:58New Moon17Sat
18Sun1:215.13:234.39:090.18:362.16:267:57New Moon18Sun
19Mon1:595.03:554.39:360.19:161.96:277:56New Moon19Mon
20Tue2:364.94:214.29:580.29:541.76:287:54New Moon20Tue
21Wed3:154.74:404.210:150.210:321.56:297:53Waxing Crescent21Wed
22Thu3:574.54:544.310:350.311:111.36:297:51Waxing Crescent22Thu
23Fri4:434.25:134.511:020.411:541.26:307:50Waxing Crescent23Fri
24Sat5:363.95:424.711:360.76:317:49Waxing Crescent24Sat
25Sun6:423.66:204.912:461.112:171.16:327:47First Quarter25Sun
26Mon8:093.47:075.11:561.01:051.56:337:46First Quarter26Mon
27Tue9:403.38:025.23:240.92:021.96:347:44First Quarter27Tue
28Wed10:583.59:085.34:440.73:102.26:357:43First Quarter28Wed
29Thu12:023.85:500.44:252.36:357:41Waxing Gibbous29Thu
30Fri12:564.06:450.15:382.26:367:40Waxing Gibbous30Fri
31Sat1:424.27:35-0.16:442.06:377:38Waxing Gibbous31Sat
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 8:42 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 Waxing 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