Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 6:34 pm (2.3 ft)
Next high tide : in 5h 20m at 1:50 pm (4.1 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Mar 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:104.69:053.71:001.53:030.36:396:01Third Quarter1Fri
2Sat8:254.510:103.92:141.74:080.16:386:02Third Quarter2Sat
3Sun9:354.511:054.13:281.75:030.06:366:03Waning Crescent3Sun
4Mon10:344.511:534.34:331.65:51-0.16:356:04Waning Crescent4Mon
5Tue11:244.55:301.56:33-0.16:336:05Waning Crescent5Tue
6Wed12:354.412:084.56:201.37:090.06:326:06Waning Crescent6Wed
7Thu1:124.512:494.47:051.17:410.26:306:07New Moon7Thu
8Fri1:454.51:274.37:471.08:070.46:296:08New Moon8Fri
9Sat2:124.42:044.28:250.98:290.56:276:09New Moon9Sat
10Sun2:324.42:424.19:010.88:490.76:266:10New Moon10Sun
11Mon2:474.53:233.99:340.79:130.86:246:11Waxing Crescent11Mon
12Tue3:064.64:083.710:060.79:451.06:236:12Waxing Crescent12Tue
13Wed3:334.75:023.510:420.610:231.26:216:13Waxing Crescent13Wed
14Thu4:094.86:103.311:260.611:091.46:206:14Waxing Crescent14Thu
15Fri4:534.87:283.212:280.66:186:15First Quarter15Fri
16Sat5:454.78:423.312:051.61:520.66:176:16First Quarter16Sat
17Sun6:484.59:453.51:131.83:100.56:156:17First Quarter17Sun
18Mon8:034.510:383.82:301.84:120.36:146:18First Quarter18Mon
19Tue9:214.611:234.03:451.65:030.16:126:19Waxing Gibbous19Tue
20Wed10:314.74:511.35:490.06:116:20Waxing Gibbous20Wed
21Thu12:034.311:33 AM4.85:500.96:300.06:096:20Waxing Gibbous21Thu
22Fri12:404.512:304.96:450.67:100.16:086:21Full Moon22Fri
23Sat1:154.81:254.97:390.37:480.36:066:22Full Moon23Sat
24Sun1:505.02:204.78:310.18:270.56:056:23Full Moon24Sun
25Mon2:255.13:164.59:240.09:070.86:036:24Waning Gibbous25Mon
26Tue3:015.24:164.310:18-0.19:501.06:016:25Waning Gibbous26Tue
27Wed3:405.15:204.011:160.010:391.36:006:26Waning Gibbous27Wed
28Thu4:254.96:283.912:170.15:586:27Third Quarter28Thu
29Fri5:174.67:373.81:230.15:576:28Third Quarter29Fri
30Sat6:254.38:433.912:431.72:290.15:556:29Third Quarter30Sat
31Sun7:494.09:424.02:001.73:310.15:546:30Third Quarter31Sun
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 4:12 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 5% 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 Waning Crescent (5% 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