Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 2h 25m at 5:49 am (-1.2 ft)
Next high tide : 12:36 pm (6.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jul 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:365.68:238.12:421.41:562.85:518:33First Quarter1Sun
2Mon9:485.89:058.23:390.92:523.35:518:33Waxing Gibbous2Mon
3Tue10:536.09:468.24:320.43:473.65:528:33Waxing Gibbous3Tue
4Wed11:496.310:288.35:180.14:413.85:528:33Waxing Gibbous4Wed
5Thu12:386.66:01-0.25:303.85:538:33Waxing Gibbous5Thu
6Fri1:216.86:40-0.46:163.75:538:33Full Moon6Fri
7Sat2:016.97:16-0.66:593.65:548:32Full Moon7Sat
8Sun12:288.42:377.07:49-0.77:403.45:558:32Full Moon8Sun
9Mon1:068.43:107.18:21-0.78:213.25:558:32Full Moon9Mon
10Tue1:458.33:407.28:53-0.79:023.05:568:32Waning Gibbous10Tue
11Wed2:278.14:097.49:26-0.59:472.75:568:31Waning Gibbous11Wed
12Thu3:147.74:387.710:00-0.110:372.55:578:31Waning Gibbous12Thu
13Fri4:077.15:118.010:380.511:352.25:588:30Third Quarter13Fri
14Sat5:126.55:518.311:211.25:588:30Third Quarter14Sat
15Sun6:345.96:388.612:421.812:132.05:598:29Third Quarter15Sun
16Mon8:075.77:328.81:571.21:172.86:008:29Third Quarter16Mon
17Tue9:355.88:319.03:080.52:283.36:018:28Waning Crescent17Tue
18Wed10:536.29:319.24:14-0.23:403.66:018:28Waning Crescent18Wed
19Thu11:576.710:319.35:13-0.84:473.56:028:27Waning Crescent19Thu
20Fri12:507.16:07-1.35:483.36:038:26New Moon20Fri
21Sat1:387.46:55-1.56:443.06:048:26New Moon21Sat
22Sun12:249.32:217.67:40-1.57:362.66:048:25New Moon22Sun
23Mon1:169.03:017.88:21-1.28:272.36:058:24New Moon23Mon
24Tue2:058.63:377.98:59-0.89:162.16:068:24Waxing Crescent24Tue
25Wed2:558.14:118.09:35-0.210:052.06:078:23Waxing Crescent25Wed
26Thu3:457.54:448.010:090.510:562.06:088:22Waxing Crescent26Thu
27Fri4:396.85:178.010:441.311:511.96:088:21First Quarter27Fri
28Sat5:406.25:538.011:222.16:098:20First Quarter28Sat
29Sun6:515.86:357.912:521.812:072.96:108:20First Quarter29Sun
30Mon8:095.77:237.91:581.61:053.56:118:19First Quarter30Mon
31Tue9:235.88:167.93:011.32:123.96:128:18Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414523)

Common Questions About Redwood City, CA Tides

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What time does the tide turn (slack tide) in Redwood City, CA today?

Slack tide in Redwood City, CA is approximately 9:12 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 Redwood City, CA?

Redwood City, CA is currently in a spring phase. Tonight's moon is 4% 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 Redwood City, 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 Redwood City, CA?

Tide predictions for Redwood City, 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 Redwood City, CA?

Tide data for Redwood City, CA is sourced from NOAA Station #9414523. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414523.

What is the moon phase in Redwood City, CA tonight?

Tonight the moon over Redwood City, CA is Waning Crescent (4% illuminated). This places Redwood City, 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