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 4h 01m 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 - Mar 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:275.19:583.312:322.23:320.46:396:01Third Quarter1Sun
2Mon7:385.010:573.61:492.44:380.16:386:02Third Quarter2Mon
3Tue9:015.011:453.93:162.35:31-0.26:376:03Waning Crescent3Tue
4Wed10:205.14:342.06:18-0.46:356:04Waning Crescent4Wed
5Thu12:274.111:27 AM5.25:401.66:59-0.46:346:05Waning Crescent5Thu
6Fri1:054.312:255.26:381.27:37-0.46:326:06New Moon6Fri
7Sat1:404.51:205.07:330.88:11-0.26:316:07New Moon7Sat
8Sun2:134.72:134.88:250.58:440.16:296:08New Moon8Sun
9Mon2:444.83:074.59:170.39:150.46:286:09Waxing Crescent9Mon
10Tue3:145.04:054.110:100.29:480.86:266:10Waxing Crescent10Tue
11Wed3:455.05:093.811:050.210:241.36:256:11Waxing Crescent11Wed
12Thu4:175.06:213.512:070.36:236:12Waxing Crescent12Thu
13Fri4:554.97:373.51:170.46:226:13First Quarter13Fri
14Sat5:424.68:513.512:032.12:300.46:206:14First Quarter14Sat
15Sun6:464.49:553.71:162.33:380.36:196:15First Quarter15Sun
16Mon8:114.210:493.92:392.34:340.16:176:15First Quarter16Mon
17Tue9:314.111:344.13:532.15:210.06:166:16Waxing Gibbous17Tue
18Wed10:334.14:531.86:00-0.16:146:17Waxing Gibbous18Wed
19Thu12:134.211:23 AM4.25:441.56:330.06:136:18Waxing Gibbous19Thu
20Fri12:464.212:074.16:301.16:590.16:116:19Waxing Gibbous20Fri
21Sat1:144.212:484.17:120.97:200.36:106:20Full Moon21Sat
22Sun1:344.31:284.07:520.77:380.56:086:21Full Moon22Sun
23Mon1:474.42:103.98:290.57:570.76:066:22Full Moon23Mon
24Tue1:584.62:553.89:050.48:231.06:056:23Full Moon24Tue
25Wed2:174.93:453.69:410.38:561.36:036:24Waning Gibbous25Wed
26Thu2:465.24:443.410:210.39:351.66:026:25Waning Gibbous26Thu
27Fri3:235.35:563.311:110.310:211.96:006:26Waning Gibbous27Fri
28Sat4:075.37:163.212:210.35:596:27Third Quarter28Sat
29Sun5:005.18:313.31:460.35:576:28Third Quarter29Sun
30Mon6:054.89:343.512:302.33:020.15:566:29Third Quarter30Mon
31Tue7:294.510:263.82:002.24:03-0.15:546:29Third Quarter31Tue
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 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