Tides Today & Tomorrow in Richmond Inner Harbor, CA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Richmond Inner Harbor, CA.
Next low tide : 3:37 pm (3.3 ft)
Next high tide : in 1h 39m at 11:05 am (4.7 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9414849
Common Questions About Tides

Richmond Inner Harbor, CA Tides - Jul 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:413.86:016.112:041.511:12 AM1.64:507:35First Quarter1Sat
2Sun7:233.86:456.51:070.812:082.24:507:35Waxing Gibbous2Sun
3Mon8:544.07:336.92:050.01:092.74:517:35Waxing Gibbous3Mon
4Tue10:054.48:247.22:59-0.62:113.04:527:35Waxing Gibbous4Tue
5Wed11:034.79:177.43:51-1.23:113.14:527:35Waxing Gibbous5Wed
6Thu11:535.010:117.54:42-1.54:103.14:537:34Full Moon6Thu
7Fri12:395.15:31-1.75:072.94:537:34Full Moon7Fri
8Sat1:225.36:19-1.76:052.74:547:34Full Moon8Sat
9Sun2:045.47:05-1.47:042.54:547:34Waning Gibbous9Sun
10Mon12:516.62:455.67:49-1.08:062.34:557:33Waning Gibbous10Mon
11Tue1:456.03:255.78:32-0.59:122.14:567:33Waning Gibbous11Tue
12Wed2:435.24:065.89:140.210:221.84:567:32Third Quarter12Wed
13Thu3:504.54:465.99:581.011:341.54:577:32Third Quarter13Thu
14Fri5:124.05:286.010:461.74:587:32Third Quarter14Fri
15Sat6:523.86:116.112:421.111:41 AM2.44:587:31Third Quarter15Sat
16Sun8:283.96:556.11:440.712:422.94:597:31Waning Crescent16Sun
17Mon9:404.27:406.22:370.41:443.25:007:30Waning Crescent17Mon
18Tue10:334.58:246.33:230.12:403.35:017:29Waning Crescent18Tue
19Wed11:154.79:076.34:04-0.13:283.35:017:29Waning Crescent19Wed
20Thu11:504.89:486.44:41-0.34:113.35:027:28New Moon20Thu
21Fri12:214.85:15-0.44:493.25:037:28New Moon21Fri
22Sat12:504.95:46-0.55:263.05:047:27New Moon22Sat
23Sun1:175.06:17-0.56:042.95:047:26New Moon23Sun
24Mon1:445.16:46-0.56:442.75:057:25Waxing Crescent24Mon
25Tue12:246.02:125.37:16-0.37:282.45:067:25Waxing Crescent25Tue
26Wed1:075.62:405.57:470.18:182.25:077:24Waxing Crescent26Wed
27Thu1:555.23:115.78:210.59:141.85:087:23Waxing Crescent27Thu
28Fri2:534.63:466.08:571.210:181.55:097:22First Quarter28Fri
29Sat4:094.14:266.29:391.811:291.05:097:21First Quarter29Sat
30Sun5:493.95:146.510:312.55:107:20First Quarter30Sun
31Mon7:383.96:106.712:400.511:38 AM3.05:117:19First Quarter31Mon
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 1:21 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 Richmond Inner Harbor, CA?

Richmond Inner Harbor, CA is currently in a spring phase. Tonight's moon is 82% 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 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 Gibbous (82% illuminated). This places Richmond Inner Harbor, 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