Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 1:29 pm (1.2 ft)
Next high tide : in 2h 13m at 7:31 am (5.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:535.77:546.42:260.52:493.47:056:52First Quarter1Wed
2Thu10:225.98:586.63:180.33:372.97:066:50Waxing Gibbous2Thu
3Fri10:486.29:556.74:010.14:202.37:076:49Waxing Gibbous3Fri
4Sat11:146.510:506.84:400.15:011.77:086:47Waxing Gibbous4Sat
5Sun11:416.811:456.95:170.25:421.07:096:46Full Moon5Sun
6Mon12:097.25:530.66:260.37:106:44Full Moon6Mon
7Tue12:406.812:407.56:301.07:11-0.37:106:43Full Moon7Tue
8Wed1:376.61:147.87:091.67:59-0.77:116:41Waning Gibbous8Wed
9Thu2:376.41:517.97:502.18:50-0.87:126:40Waning Gibbous9Thu
10Fri3:426.12:347.88:352.79:47-0.87:136:39Waning Gibbous10Fri
11Sat4:545.93:247.69:283.110:50-0.57:146:37Waning Gibbous11Sat
12Sun6:135.84:257.310:383.47:156:36Third Quarter12Sun
13Mon7:325.95:386.912:02-0.312:123.57:166:34Third Quarter13Mon
14Tue8:376.16:586.61:18-0.11:443.27:176:33Third Quarter14Tue
15Wed9:286.38:156.42:250.02:572.77:186:31Waning Crescent15Wed
16Thu10:086.59:246.43:210.23:552.17:196:30Waning Crescent16Thu
17Fri10:436.710:246.34:070.44:431.57:206:29Waning Crescent17Fri
18Sat11:136.811:186.24:460.75:251.17:216:27Waning Crescent18Sat
19Sun11:396.95:211.16:030.77:226:26New Moon19Sun
20Mon12:086.112:037.05:521.56:380.47:236:25New Moon20Mon
21Tue12:556.012:257.06:231.97:110.17:246:23New Moon21Tue
22Wed1:425.912:487.16:532.47:440.07:256:22New Moon22Wed
23Thu2:285.81:127.07:242.88:180.07:266:21Waxing Crescent23Thu
24Fri3:165.71:406.97:563.18:550.07:276:20Waxing Crescent24Fri
25Sat4:085.52:146.88:303.49:360.17:286:18Waxing Crescent25Sat
26Sun5:075.42:546.69:113.610:250.27:296:17Waxing Crescent26Sun
27Mon6:155.43:436.410:093.811:220.37:306:16First Quarter27Mon
28Tue7:215.54:456.211:393.87:316:15First Quarter28Tue
29Wed8:125.65:596.012:250.41:133.57:326:14First Quarter29Wed
30Thu8:485.97:165.91:260.42:203.07:336:13First Quarter30Thu
31Fri9:196.28:305.92:200.43:122.47:346:11Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

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What time does the tide turn (slack tide) in South San Francisco, CA today?

Slack tide in South San Francisco, CA is approximately 10:30 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 South San Francisco, CA?

South San Francisco, CA is currently in a transitional phase. Tonight's moon is 35% 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 South San Francisco, 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 South San Francisco, CA?

Tide predictions for South San Francisco, 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 South San Francisco, CA?

Tide data for South San Francisco, CA is sourced from NOAA Station #9414391. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414391.

What is the moon phase in South San Francisco, CA tonight?

Tonight the moon over South San Francisco, CA is Third Quarter (35% illuminated). This places South San Francisco, 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