Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 9:38 am (-0.9 ft)
Next high tide : in 5m at 2:44 am (8.6 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Dec 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:357.37:196.112:481.21:442.67:054:51First Quarter1Sat
2Sun8:147.58:256.11:371.52:402.07:064:50Waxing Gibbous2Sun
3Mon8:497.89:266.22:231.83:291.37:074:50Waxing Gibbous3Mon
4Tue9:228.010:226.43:062.14:140.77:074:50Waxing Gibbous4Tue
5Wed9:528.211:146.63:492.54:550.27:084:50Waxing Gibbous5Wed
6Thu10:218.44:302.85:33-0.17:094:50Full Moon6Thu
7Fri12:036.710:51 AM8.55:113.16:10-0.47:104:50Full Moon7Fri
8Sat12:506.811:22 AM8.65:523.36:47-0.67:114:50Full Moon8Sat
9Sun1:376.811:57 AM8.76:343.57:25-0.87:124:50Full Moon9Sun
10Mon2:226.812:368.77:173.68:04-0.87:134:50Waning Gibbous10Mon
11Tue3:076.81:208.58:033.68:46-0.87:134:51Waning Gibbous11Tue
12Wed3:526.82:118.28:543.69:32-0.67:144:51Waning Gibbous12Wed
13Thu4:406.93:107.79:523.510:23-0.37:154:51Waning Gibbous13Thu
14Fri5:297.04:207.211:003.211:180.17:154:51Third Quarter14Fri
15Sat6:187.45:426.712:142.77:164:52Third Quarter15Sat
16Sun7:067.87:086.412:170.61:271.97:174:52Third Quarter16Sun
17Mon7:518.38:276.41:161.12:320.97:174:52Waning Crescent17Mon
18Tue8:358.89:406.62:141.63:320.07:184:53Waning Crescent18Tue
19Wed9:189.110:466.83:092.14:26-0.87:194:53Waning Crescent19Wed
20Thu10:019.311:457.04:032.55:17-1.37:194:53New Moon20Thu
21Fri10:449.44:552.86:04-1.57:204:54New Moon21Fri
22Sat12:397.211:26 AM9.25:463.06:49-1.67:204:54New Moon22Sat
23Sun1:297.312:099.06:353.17:33-1.47:204:55New Moon23Sun
24Mon2:167.312:528.67:223.28:14-1.07:214:56Waxing Crescent24Mon
25Tue3:007.21:368.28:103.28:53-0.67:214:56Waxing Crescent25Tue
26Wed3:427.12:237.78:583.39:32-0.17:224:57Waxing Crescent26Wed
27Thu4:237.03:137.19:493.310:110.47:224:58Waxing Crescent27Thu
28Fri5:057.04:116.510:453.210:521.07:224:58First Quarter28Fri
29Sat5:477.05:206.011:503.011:381.67:234:59First Quarter29Sat
30Sun6:287.26:375.612:572.57:235:00First Quarter30Sun
31Mon7:097.47:585.612:302.12:002.07:235:00First Quarter31Mon
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 6:11 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 15% 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 (15% 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