Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide (tomorrow) : 12:15 am (1.0 ft)
Next high tide : in 4h 56m at 5:36 pm (4.7 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Aug 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:203.67:305.01:400.812:501.05:107:18First Quarter1Fri
2Sat8:413.58:195.12:540.61:401.55:117:17First Quarter2Sat
3Sun9:563.59:105.24:040.42:382.05:127:16Waxing Gibbous3Sun
4Mon11:033.89:595.25:050.23:412.35:137:15Waxing Gibbous4Mon
5Tue12:014.05:590.04:422.55:137:14Waxing Gibbous5Tue
6Wed12:514.26:47-0.15:392.65:147:13Waxing Gibbous6Wed
7Thu1:364.37:29-0.16:312.55:157:11Full Moon7Thu
8Fri12:085.22:164.38:070.07:172.45:167:10Full Moon8Fri
9Sat12:465.12:524.38:380.08:002.25:177:09Full Moon9Sat
10Sun1:235.03:234.29:050.18:402.05:187:08Full Moon10Sun
11Mon2:004.83:484.29:250.19:181.85:197:07Waning Gibbous11Mon
12Tue2:404.64:074.39:420.29:561.65:207:06Waning Gibbous12Tue
13Wed3:224.34:234.410:030.310:371.45:207:04Waning Gibbous13Wed
14Thu4:103.94:444.610:300.511:231.35:217:03Waning Gibbous14Thu
15Fri5:083.65:144.811:040.95:227:02Third Quarter15Fri
16Sat6:283.35:535.012:211.211:46 AM1.35:237:01Third Quarter16Sat
17Sun8:093.16:405.21:421.112:351.85:246:59Third Quarter17Sun
18Mon9:383.37:375.43:130.91:352.25:256:58Third Quarter18Mon
19Tue10:503.58:415.54:280.62:452.55:266:57Waning Crescent19Tue
20Wed11:483.89:495.65:280.33:592.55:276:55Waning Crescent20Wed
21Thu12:374.06:200.05:102.45:276:54Waning Crescent21Thu
22Fri1:204.27:06-0.26:142.15:286:53New Moon22Fri
23Sat2:004.37:48-0.37:141.85:296:51New Moon23Sat
24Sun12:555.72:374.48:27-0.38:121.45:306:50New Moon24Sun
25Mon1:515.53:134.69:02-0.19:081.15:316:49Waxing Crescent25Mon
26Tue2:475.23:484.79:360.110:040.85:326:47Waxing Crescent26Tue
27Wed3:454.74:224.810:090.411:030.75:336:46Waxing Crescent27Wed
28Thu4:474.34:584.910:430.85:346:44Waxing Crescent28Thu
29Fri5:583.95:385.012:070.611:22 AM1.25:346:43First Quarter29Fri
30Sat7:143.66:244.91:170.612:091.75:356:41First Quarter30Sat
31Sun8:323.67:214.82:300.51:082.15:366:40First Quarter31Sun
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 8:55 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 spring phase. Tonight's moon is 19% 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 maximum.

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 Crescent (19% illuminated). This places Port Chicago, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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