Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 4:15 pm (3.7 ft)
Next high tide : in 5h 09m at 11:26 am (6.6 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Aug 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:368.42:237.37:47-0.67:413.06:138:16Full Moon1Sat
2Sun1:168.32:557.38:19-0.38:212.96:148:15Full Moon2Sun
3Mon1:558.03:227.38:480.09:002.76:158:14Waning Gibbous3Mon
4Tue2:347.63:477.49:140.49:382.66:168:13Waning Gibbous4Tue
5Wed3:157.24:107.59:410.910:182.56:178:12Waning Gibbous5Wed
6Thu4:006.74:337.610:081.511:022.36:178:11Waning Gibbous6Thu
7Fri4:536.25:017.810:402.111:542.26:188:10Third Quarter7Fri
8Sat6:025.75:387.811:202.86:198:09Third Quarter8Sat
9Sun7:295.56:257.912:592.012:133.56:208:08Third Quarter9Sun
10Mon8:565.67:238.02:121.71:254.06:218:07Third Quarter10Mon
11Tue10:115.98:278.23:191.12:434.26:228:05Waning Crescent11Tue
12Wed11:126.39:308.54:190.53:534.16:238:04Waning Crescent12Wed
13Thu12:026.75:11-0.24:533.76:238:03Waning Crescent13Thu
14Fri12:447.15:58-0.75:483.26:248:02New Moon14Fri
15Sat1:237.46:42-1.16:392.76:258:01New Moon15Sat
16Sun12:209.31:597.77:23-1.37:292.16:267:59New Moon16Sun
17Mon1:129.22:348.18:03-1.18:191.66:277:58New Moon17Mon
18Tue2:048.93:088.48:42-0.79:101.26:287:57Waxing Crescent18Tue
19Wed2:598.43:438.79:220.010:030.96:297:55Waxing Crescent19Wed
20Thu3:587.74:208.810:020.811:010.86:297:54Waxing Crescent20Thu
21Fri5:037.05:028.810:461.86:307:53First Quarter21Fri
22Sat6:196.45:508.712:050.711:37 AM2.76:317:51First Quarter22Sat
23Sun7:436.16:498.41:160.712:423.56:327:50First Quarter23Sun
24Mon9:046.27:568.32:300.51:573.86:337:49First Quarter24Mon
25Tue10:146.59:038.23:370.33:103.86:347:47Waxing Gibbous25Tue
26Wed11:116.910:038.24:350.04:143.66:347:46Waxing Gibbous26Wed
27Thu11:567.210:578.25:24-0.15:103.26:357:44Waxing Gibbous27Thu
28Fri12:357.46:05-0.25:582.86:367:43Full Moon28Fri
29Sat1:097.56:42-0.16:412.56:377:41Full Moon29Sat
30Sun12:268.11:387.57:140.17:202.26:387:40Full Moon30Sun
31Mon1:058.02:047.57:420.47:572.06:397:39Full Moon31Mon
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 1:50 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 Waning 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