Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 1:17 pm (3.1 ft)
Next high tide : in 3h 08m at 8:07 am (5.7 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jul 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:316.27:078.212:522.212:351.45:518:34Third Quarter1Tue
2Wed7:586.08:008.52:031.61:381.95:528:33Third Quarter2Wed
3Thu9:196.18:538.93:100.92:452.35:528:33Waning Crescent3Thu
4Fri10:336.49:479.24:120.13:492.65:538:33Waning Crescent4Fri
5Sat11:396.810:429.45:09-0.64:522.65:538:33Waning Crescent5Sat
6Sun12:377.26:03-1.25:512.65:548:33New Moon6Sun
7Mon1:297.56:53-1.66:472.45:558:32New Moon7Mon
8Tue12:299.52:197.87:40-1.77:412.35:558:32New Moon8Tue
9Wed1:219.33:058.08:26-1.58:342.15:568:32Waxing Crescent9Wed
10Thu2:138.93:498.19:09-1.29:272.05:568:31Waxing Crescent10Thu
11Fri3:068.44:318.29:51-0.710:202.05:578:31Waxing Crescent11Fri
12Sat4:007.75:138.210:330.011:161.95:588:31Waxing Crescent12Sat
13Sun4:577.15:568.111:160.75:588:30First Quarter13Sun
14Mon6:006.56:418.112:161.912:021.55:598:30First Quarter14Mon
15Tue7:116.17:288.11:211.712:542.16:008:29First Quarter15Tue
16Wed8:236.08:168.12:251.51:522.76:018:29First Quarter16Wed
17Thu9:316.19:038.23:251.12:503.06:018:28Waxing Gibbous17Thu
18Fri10:326.39:488.24:180.73:463.26:028:27Waxing Gibbous18Fri
19Sat11:276.610:328.35:060.34:383.26:038:27Waxing Gibbous19Sat
20Sun12:146.85:480.15:273.26:048:26Waxing Gibbous20Sun
21Mon12:577.06:26-0.16:123.16:048:26Full Moon21Mon
22Tue1:357.27:01-0.26:542.96:058:25Full Moon22Tue
23Wed12:328.42:107.37:34-0.37:342.86:068:24Full Moon23Wed
24Thu1:098.32:427.48:06-0.38:142.66:078:23Full Moon24Thu
25Fri1:478.23:127.58:38-0.28:542.46:078:23Waning Gibbous25Fri
26Sat2:278.03:417.79:110.09:372.36:088:22Waning Gibbous26Sat
27Sun3:127.74:127.99:460.310:242.16:098:21Waning Gibbous27Sun
28Mon4:037.24:488.110:260.811:191.96:108:20Waning Gibbous28Mon
29Tue5:056.75:328.311:121.46:118:19Third Quarter29Tue
30Wed6:236.26:258.512:241.712:072.06:128:18Third Quarter30Wed
31Thu7:506.07:268.61:381.31:152.66:128:17Third Quarter31Thu
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 10:42 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 transitional phase. Tonight's moon is 63% 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 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 First Quarter (63% illuminated). This places Redwood City, 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