Tides Today & Tomorrow in Richmond Inner Harbor, CA

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Richmond Inner Harbor, CA.
Next low tide : in 4h 14m at 10:39 pm (1.2 ft)
Next high tide (tomorrow) : 4:48 am (4.4 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:26 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414849
Common Questions About Tides

Richmond Inner Harbor, CA Tides - Mar 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:386.19:564.61:312.72:52-0.27:417:02Waning Crescent1Mon
2Tue8:436.310:475.02:452.63:49-0.67:407:03Waning Crescent2Tue
3Wed9:446.511:305.33:482.34:40-0.87:387:04Waning Crescent3Wed
4Thu10:416.74:431.95:27-0.97:377:05New Moon4Thu
5Fri12:105.611:35 AM6.75:351.56:11-0.87:367:06New Moon5Fri
6Sat12:495.812:276.56:241.26:53-0.67:347:07New Moon6Sat
7Sun1:266.01:186.27:130.97:34-0.27:337:08New Moon7Sun
8Mon2:036.02:095.88:020.78:150.37:317:09Waxing Crescent8Mon
9Tue2:406.03:035.38:510.68:570.97:307:10Waxing Crescent9Tue
10Wed3:185.94:014.89:440.69:421.57:287:11Waxing Crescent10Wed
11Thu3:575.75:104.410:410.710:332.17:277:12Waxing Crescent11Thu
12Fri4:415.56:334.111:450.811:382.57:257:13First Quarter12Fri
13Sat5:335.38:034.212:550.87:247:14First Quarter13Sat
14Sun6:325.29:144.412:562.82:020.77:227:14First Quarter14Sun
15Mon7:365.110:054.62:102.83:000.57:217:15First Quarter15Mon
16Tue8:365.210:434.83:102.63:480.37:197:16Waxing Gibbous16Tue
17Wed9:295.411:154.93:582.44:290.27:187:17Waxing Gibbous17Wed
18Thu10:165.511:435.04:392.15:040.17:167:18Waxing Gibbous18Thu
19Fri10:595.65:161.85:360.17:157:19Waxing Gibbous19Fri
20Sat12:105.211:40 AM5.65:501.56:060.27:137:20Full Moon20Sat
21Sun12:365.312:215.56:231.26:360.37:127:21Full Moon21Sun
22Mon1:035.51:045.46:580.97:080.57:107:22Full Moon22Mon
23Tue1:325.61:485.27:350.67:410.97:097:23Waning Gibbous23Tue
24Wed2:025.82:365.08:150.48:171.37:077:24Waning Gibbous24Wed
25Thu2:365.83:324.79:010.28:571.77:057:25Waning Gibbous25Thu
26Fri3:145.84:374.49:540.19:452.27:047:26Waning Gibbous26Fri
27Sat4:005.85:564.310:550.110:472.67:027:27Third Quarter27Sat
28Sun4:575.77:214.312:050.07:017:28Third Quarter28Sun
29Mon6:055.68:354.612:092.81:18-0.16:597:28Third Quarter29Mon
30Tue7:205.69:314.91:352.72:26-0.36:587:29Third Quarter30Tue
31Wed8:325.710:175.22:482.33:24-0.46:567:30Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414849)

Common Questions About Richmond Inner Harbor, CA Tides

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What time does the tide turn (slack tide) in Richmond Inner Harbor, CA today?

Slack tide in Richmond Inner Harbor, CA is approximately 1:43 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 Richmond Inner Harbor, CA?

Richmond Inner Harbor, CA is currently in a transitional phase. Tonight's moon is 28% 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 Richmond Inner Harbor, 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 Richmond Inner Harbor, CA?

Tide predictions for Richmond Inner Harbor, 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 Richmond Inner Harbor, CA?

Tide data for Richmond Inner Harbor, CA is sourced from NOAA Station #9414849. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414849.

What is the moon phase in Richmond Inner Harbor, CA tonight?

Tonight the moon over Richmond Inner Harbor, CA is Waxing Crescent (28% illuminated). This places Richmond Inner Harbor, 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