Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 11:36 am (0.4 ft)
Next high tide : in 1h 49m at 5:14 am (4.1 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Apr 2026

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:204.62:304.18:470.28:380.56:527:31Full Moon1Wed
2Thu2:444.73:173.99:310.19:010.96:517:32Full Moon2Thu
3Fri3:024.74:063.810:140.19:251.26:497:33Full Moon3Fri
4Sat3:184.84:573.710:550.19:531.56:487:34Waning Gibbous4Sat
5Sun3:374.95:543.511:360.210:281.86:467:34Waning Gibbous5Sun
6Mon4:054.96:553.512:210.26:457:35Waning Gibbous6Mon
7Tue4:414.88:013.41:130.36:437:36Waning Gibbous7Tue
8Wed5:254.69:053.412:042.22:150.36:427:37Third Quarter8Wed
9Thu6:204.310:033.51:082.33:180.36:407:38Third Quarter9Thu
10Fri7:284.010:533.62:262.34:150.26:397:39Third Quarter10Fri
11Sat8:543.811:343.83:462.05:020.16:377:40Third Quarter11Sat
12Sun10:193.84:541.65:420.06:367:41Waning Crescent12Sun
13Mon12:083.911:28 AM3.85:511.26:160.16:347:42Waning Crescent13Mon
14Tue12:364.112:263.96:410.76:470.36:337:43Waning Crescent14Tue
15Wed1:004.41:213.97:290.47:170.66:317:44Waning Crescent15Wed
16Thu1:214.72:153.98:170.17:500.96:307:45New Moon16Thu
17Fri1:465.13:103.99:04-0.28:261.26:297:46New Moon17Fri
18Sat2:175.54:093.89:54-0.39:071.56:277:47New Moon18Sat
19Sun2:535.75:113.710:46-0.39:541.86:267:47Waxing Crescent19Sun
20Mon3:355.76:183.711:43-0.310:482.06:257:48Waxing Crescent20Mon
21Tue4:235.57:273.712:46-0.26:237:49Waxing Crescent21Tue
22Wed5:185.18:333.71:54-0.16:227:50First Quarter22Wed
23Thu6:264.79:343.91:102.23:00-0.16:217:51First Quarter23Thu
24Fri7:554.210:284.12:362.04:00-0.26:197:52First Quarter24Fri
25Sat9:303.911:164.33:571.64:53-0.26:187:53First Quarter25Sat
26Sun10:473.811:584.55:071.05:37-0.16:177:54Waxing Gibbous26Sun
27Mon11:503.76:070.66:160.16:167:55Waxing Gibbous27Mon
28Tue12:354.612:453.77:010.26:500.56:147:56Waxing Gibbous28Tue
29Wed1:064.81:373.77:50-0.17:200.96:137:57Full Moon29Wed
30Thu1:324.82:273.78:37-0.27:471.36:127:58Full Moon30Thu
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 8:25 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 Waning 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