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 (tomorrow) : 3:09 am (1.0 ft)
Next high tide : in 2h 26m at 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 - Aug 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:165.22:404.38:260.07:302.55:107:18Full Moon1Fri
2Sat12:535.23:154.38:560.08:122.35:117:17Full Moon2Sat
3Sun1:315.13:464.29:220.08:532.15:127:16Full Moon3Sun
4Mon2:115.04:124.29:430.09:321.95:137:15Waning Gibbous4Mon
5Tue2:544.74:334.210:030.010:141.65:137:14Waning Gibbous5Tue
6Wed3:404.44:534.410:290.111:001.55:147:13Waning Gibbous6Wed
7Thu4:334.15:204.611:010.411:541.35:157:12Waning Gibbous7Thu
8Fri5:363.75:554.811:390.75:167:11Third Quarter8Fri
9Sat7:023.46:385.11:041.212:251.25:177:09Third Quarter9Sat
10Sun8:413.37:295.32:311.01:181.75:187:08Third Quarter10Sun
11Mon10:063.48:275.53:530.82:202.15:197:07Waning Crescent11Mon
12Tue11:163.79:295.75:020.53:292.35:207:06Waning Crescent12Tue
13Wed12:144.06:010.24:402.45:207:05Waning Crescent13Wed
14Thu1:054.26:53-0.15:482.35:217:03Waning Crescent14Thu
15Fri1:514.37:40-0.26:522.15:227:02New Moon15Fri
16Sat12:325.92:354.48:23-0.37:521.85:237:01New Moon16Sat
17Sun1:285.73:154.59:02-0.28:491.55:247:00New Moon17Sun
18Mon2:235.43:544.69:38-0.19:451.35:256:58Waxing Crescent18Mon
19Tue3:195.04:314.710:120.110:421.15:266:57Waxing Crescent19Tue
20Wed4:174.65:084.710:450.411:421.05:276:56Waxing Crescent20Wed
21Thu5:214.15:454.711:190.85:276:54First Quarter21Thu
22Fri6:333.76:254.712:470.911:58 AM1.25:286:53First Quarter22Fri
23Sat7:503.57:114.71:570.812:451.65:296:52First Quarter23Sat
24Sun9:053.58:044.73:070.61:432.05:306:50First Quarter24Sun
25Mon10:133.79:014.84:110.42:502.35:316:49Waxing Gibbous25Mon
26Tue11:114.09:574.85:070.23:572.45:326:47Waxing Gibbous26Tue
27Wed12:024.25:560.14:562.45:336:46Waxing Gibbous27Wed
28Thu12:454.36:380.05:482.25:336:44Waxing Gibbous28Thu
29Fri1:244.37:160.06:352.15:346:43Full Moon29Fri
30Sat12:114.91:584.37:480.17:181.95:356:42Full Moon30Sat
31Sun12:494.92:274.38:150.17:581.75:366:40Full Moon31Sun
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 11:09 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