Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 10:55 pm (2.0 ft)
Next high tide : in 5h 43m at 4:57 pm (8.1 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Aug 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:586.06:167.912:092.511:50 AM2.06:128:17Third Quarter1Mon
2Tue7:245.77:058.11:182.112:472.76:138:16Third Quarter2Tue
3Wed8:525.88:008.42:301.51:563.26:148:15Third Quarter3Wed
4Thu10:106.18:588.73:360.83:073.56:158:14Waning Crescent4Thu
5Fri11:176.59:569.14:360.04:143.56:168:13Waning Crescent5Fri
6Sat12:147.05:31-0.75:163.36:168:12Waning Crescent6Sat
7Sun1:047.36:21-1.26:133.06:178:11New Moon7Sun
8Mon1:507.77:09-1.57:072.66:188:10New Moon8Mon
9Tue12:479.62:337.97:54-1.68:002.26:198:09New Moon9Tue
10Wed1:419.43:158.18:38-1.48:521.86:208:08Waxing Crescent10Wed
11Thu2:369.03:558.39:21-0.99:461.66:218:06Waxing Crescent11Thu
12Fri3:328.44:348.410:03-0.210:421.46:228:05Waxing Crescent12Fri
13Sat4:327.65:158.410:460.611:421.46:228:04First Quarter13Sat
14Sun5:376.96:008.411:321.56:238:03First Quarter14Sun
15Mon6:506.46:498.312:471.312:252.46:248:02First Quarter15Mon
16Tue8:096.27:428.21:571.11:273.06:258:00First Quarter16Tue
17Wed9:236.38:378.23:030.82:333.46:267:59Waxing Gibbous17Wed
18Thu10:286.69:308.24:020.53:353.56:277:58Waxing Gibbous18Thu
19Fri11:236.910:218.24:540.24:323.56:277:56Waxing Gibbous19Fri
20Sat12:087.15:390.05:233.36:287:55Waxing Gibbous20Sat
21Sun12:487.36:19-0.16:083.06:297:54Full Moon21Sun
22Mon1:247.46:54-0.16:492.86:307:52Full Moon22Mon
23Tue12:308.21:567.47:260.07:272.66:317:51Full Moon23Tue
24Wed1:078.12:247.47:550.18:032.56:327:50Full Moon24Wed
25Thu1:438.02:497.48:230.38:392.36:337:48Waning Gibbous25Thu
26Fri2:207.73:107.68:500.69:142.16:337:47Waning Gibbous26Fri
27Sat2:597.43:337.79:191.09:522.06:347:46Waning Gibbous27Sat
28Sun3:437.03:597.99:521.510:361.96:357:44Waning Gibbous28Sun
29Mon4:376.54:348.010:302.111:291.76:367:43Third Quarter29Mon
30Tue5:476.15:198.111:172.86:377:41Third Quarter30Tue
31Wed7:165.96:168.212:381.612:193.46:387:40Third Quarter31Wed
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 7:56 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 transitional phase. Tonight's moon is 24% 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 Waxing Crescent (24% 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