Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 8:00 pm (2.9 ft)
Next high tide : in 3m at 2:39 pm (7.2 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:11 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jun 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:045.88:147.31:372.71:241.45:498:23First Quarter1Tue
2Wed8:175.68:517.62:402.12:121.95:488:24First Quarter2Wed
3Thu9:265.79:267.83:351.43:002.35:488:25Waxing Gibbous3Thu
4Fri10:305.89:598.04:250.83:472.85:488:25Waxing Gibbous4Fri
5Sat11:306.110:318.25:110.34:343.15:478:26Waxing Gibbous5Sat
6Sun12:246.35:53-0.25:213.45:478:26Waxing Gibbous6Sun
7Mon1:146.56:34-0.56:073.65:478:27Full Moon7Mon
8Tue2:016.77:12-0.86:523.75:478:28Full Moon8Tue
9Wed12:178.52:466.87:51-1.07:373.65:478:28Full Moon9Wed
10Thu12:588.63:296.98:30-1.28:223.65:478:29Full Moon10Thu
11Fri1:418.64:106.99:10-1.29:113.45:478:29Waning Gibbous11Fri
12Sat2:298.44:507.19:52-1.110:033.25:468:30Waning Gibbous12Sat
13Sun3:238.05:327.210:35-0.911:012.95:468:30Waning Gibbous13Sun
14Mon4:237.56:147.511:21-0.45:468:30Third Quarter14Mon
15Tue5:346.96:597.912:072.612:110.25:468:31Third Quarter15Tue
16Wed6:556.37:448.31:182.01:061.05:478:31Third Quarter16Wed
17Thu8:206.08:308.72:291.22:041.75:478:32Waning Crescent17Thu
18Fri9:426.09:169.03:350.43:032.35:478:32Waning Crescent18Fri
19Sat10:576.210:029.24:35-0.44:022.85:478:32Waning Crescent19Sat
20Sun12:036.55:30-1.05:013.25:478:32Waning Crescent20Sun
21Mon1:026.86:22-1.35:573.35:478:33New Moon21Mon
22Tue1:547.07:09-1.56:503.45:478:33New Moon22Tue
23Wed12:249.02:417.27:54-1.47:413.45:488:33New Moon23Wed
24Thu1:108.73:257.28:35-1.28:303.35:488:33Waxing Crescent24Thu
25Fri1:558.34:047.29:14-0.99:173.25:488:33Waxing Crescent25Fri
26Sat2:417.94:417.29:50-0.410:053.15:498:33Waxing Crescent26Sat
27Sun3:277.45:167.210:230.110:543.05:498:34Waxing Crescent27Sun
28Mon4:176.85:517.310:570.611:482.85:498:34First Quarter28Mon
29Tue5:146.36:267.411:321.35:508:34First Quarter29Tue
30Wed6:215.87:037.612:492.612:131.95:508:34First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414523)

Common Questions About Redwood City, CA Tides

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

Slack tide in Redwood City, CA is approximately 5:19 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 Redwood City, CA?

Redwood City, CA is currently in a spring phase. Tonight's moon is 99% 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 Full Moon (99% 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