Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 9:36 pm (1.4 ft)
Next high tide : in 5h 49m at 3:30 pm (8.3 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Aug 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:398.32:207.37:43-0.27:422.96:128:17New Moon1Sun
2Mon1:158.22:527.38:14-0.18:202.86:138:16New Moon2Mon
3Tue1:518.13:217.38:420.18:572.76:148:15Waxing Crescent3Tue
4Wed2:287.83:487.49:110.39:352.66:148:14Waxing Crescent4Wed
5Thu3:077.54:147.59:410.610:162.56:158:13Waxing Crescent5Thu
6Fri3:527.14:437.610:151.011:032.46:168:12Waxing Crescent6Fri
7Sat4:456.75:197.810:541.56:178:11First Quarter7Sat
8Sun5:526.26:048.012:002.211:43 AM2.06:188:10First Quarter8Sun
9Mon7:166.06:598.21:101.912:432.66:198:09First Quarter9Mon
10Tue8:416.07:598.42:221.41:553.06:198:08First Quarter10Tue
11Wed9:566.39:008.73:280.73:063.16:208:07Waxing Gibbous11Wed
12Thu11:016.810:019.04:280.04:133.06:218:06Waxing Gibbous12Thu
13Fri11:577.211:009.35:23-0.65:142.86:228:04Waxing Gibbous13Fri
14Sat12:477.66:14-1.16:112.46:238:03Full Moon14Sat
15Sun1:337.97:01-1.37:052.06:248:02Full Moon15Sun
16Mon12:519.52:178.27:47-1.37:571.66:258:01Full Moon16Mon
17Tue1:459.22:598.48:31-1.18:491.46:257:59Waning Gibbous17Tue
18Wed2:398.83:408.59:14-0.69:421.26:267:58Waning Gibbous18Wed
19Thu3:348.24:208.59:570.110:361.26:277:57Waning Gibbous19Thu
20Fri4:327.65:038.410:410.911:341.36:287:56Waning Gibbous20Fri
21Sat5:367.05:488.311:281.76:297:54Third Quarter21Sat
22Sun6:476.56:398.112:381.312:232.46:307:53Third Quarter22Sun
23Mon8:016.37:358.01:461.21:252.96:317:52Third Quarter23Mon
24Tue9:126.58:318.02:521.02:303.26:317:50Waning Crescent24Tue
25Wed10:146.79:258.03:500.83:313.26:327:49Waning Crescent25Wed
26Thu11:077.010:168.14:410.54:273.16:337:47Waning Crescent26Thu
27Fri11:527.211:038.25:260.35:162.86:347:46Waning Crescent27Fri
28Sat12:327.46:040.26:012.66:357:45New Moon28Sat
29Sun1:077.56:390.26:422.46:367:43New Moon29Sun
30Mon12:258.21:397.57:110.27:202.26:367:42New Moon30Mon
31Tue1:038.12:077.57:410.47:562.16:377:40New Moon31Tue
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 6:33 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 12% 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 Waxing Crescent (12% 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