Tides Today & Tomorrow in Port Chicago, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Port Chicago, CA.
Next low tide : 3:31 pm (2.1 ft)
Next high tide : in 9m at 11:04 am (3.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9415144
Common Questions About Tides

Port Chicago, CA Tides - Nov 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:113.75:454.01:200.212:542.26:345:09Third Quarter1Sat
2Sun9:003.87:073.62:120.22:071.96:355:08Third Quarter2Sun
3Mon9:433.88:323.52:580.23:141.56:365:07Third Quarter3Mon
4Tue10:194.09:433.53:380.24:121.16:375:06Waning Crescent4Tue
5Wed10:494.110:443.54:120.35:040.76:385:05Waning Crescent5Wed
6Thu11:114.311:403.64:420.55:520.46:395:04Waning Crescent6Thu
7Fri11:294.65:120.86:390.16:405:03Waning Crescent7Fri
8Sat12:333.611:49 AM5.05:431.27:24-0.16:415:02New Moon8Sat
9Sun1:273.712:155.36:191.58:10-0.26:425:01New Moon9Sun
10Mon2:223.712:495.67:001.88:57-0.36:435:00New Moon10Mon
11Tue3:183.71:305.87:462.19:47-0.36:444:59Waxing Crescent11Tue
12Wed4:173.72:165.78:382.210:40-0.36:464:58Waxing Crescent12Wed
13Thu5:173.73:085.49:372.311:37-0.36:474:57Waxing Crescent13Thu
14Fri6:163.74:075.010:442.26:484:57Waxing Crescent14Fri
15Sat7:143.85:194.512:35-0.212:022.06:494:56First Quarter15Sat
16Sun8:083.96:484.01:33-0.21:261.76:504:55First Quarter16Sun
17Mon8:584.18:223.72:28-0.12:461.36:514:55First Quarter17Mon
18Tue9:434.49:413.63:170.03:560.76:524:54Waxing Gibbous18Tue
19Wed10:244.610:483.64:020.24:590.36:534:53Waxing Gibbous19Wed
20Thu11:014.811:483.64:430.55:55-0.16:544:53Waxing Gibbous20Thu
21Fri11:335.05:210.96:48-0.36:554:52Waxing Gibbous21Fri
22Sat12:443.712:015.25:581.47:36-0.46:564:52Full Moon22Sat
23Sun1:393.712:265.26:351.88:22-0.36:574:51Full Moon23Sun
24Mon2:323.812:515.37:142.19:06-0.36:584:51Full Moon24Mon
25Tue3:243.91:215.27:572.49:46-0.26:594:50Full Moon25Tue
26Wed4:153.91:565.18:422.510:25-0.17:004:50Waning Gibbous26Wed
27Thu5:043.92:364.99:302.511:01-0.17:014:50Waning Gibbous27Thu
28Fri5:513.83:224.610:222.311:36-0.17:024:49Waning Gibbous28Fri
29Sat6:373.84:134.311:182.27:034:49Waning Gibbous29Sat
30Sun7:213.75:133.812:110.012:202.07:044:49Third Quarter30Sun
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 1:17 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 transitional phase. Tonight's moon is 72% 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 (72% 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