Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 6:36 pm (3.4 ft)
Next high tide : in 35m at 2:15 pm (5.8 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:50 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:086.85:410.36:061.27:056:52New Moon1Thu
2Fri12:006.712:356.96:140.76:450.97:066:51New Moon2Fri
3Sat12:486.41:007.06:461.27:220.67:076:49New Moon3Sat
4Sun1:346.21:237.07:161.77:580.47:076:48New Moon4Sun
5Mon2:226.01:466.97:462.28:350.37:086:46Waxing Crescent5Mon
6Tue3:115.72:126.98:182.79:130.47:096:45Waxing Crescent6Tue
7Wed4:065.52:416.88:513.19:560.47:106:43Waxing Crescent7Wed
8Thu5:115.43:186.69:303.510:480.67:116:42Waxing Crescent8Thu
9Fri6:345.34:076.410:263.711:510.77:126:41First Quarter9Fri
10Sat8:015.45:106.212:033.87:136:39First Quarter10Sat
11Sun8:585.56:246.11:010.71:403.77:146:38First Quarter11Sun
12Mon9:345.77:386.12:050.52:433.37:156:36First Quarter12Mon
13Tue10:035.98:446.32:580.43:312.87:166:35Waxing Gibbous13Tue
14Wed10:286.29:446.43:420.34:122.27:176:33Waxing Gibbous14Wed
15Thu10:546.510:406.54:210.34:521.57:186:32Waxing Gibbous15Thu
16Fri11:206.911:356.64:580.55:320.87:196:31Waxing Gibbous16Fri
17Sat11:487.25:340.86:140.17:196:29Full Moon17Sat
18Sun12:316.612:197.66:121.36:58-0.57:206:28Full Moon18Sun
19Mon1:286.512:537.86:501.87:44-0.97:216:27Full Moon19Mon
20Tue2:286.31:308.07:322.38:34-1.17:226:25Waning Gibbous20Tue
21Wed3:316.12:137.98:172.89:29-1.07:236:24Waning Gibbous21Wed
22Thu4:405.93:047.79:113.210:30-0.87:246:23Waning Gibbous22Thu
23Fri5:545.94:037.310:203.511:38-0.57:256:21Third Quarter23Fri
24Sat7:095.95:146.911:513.57:266:20Third Quarter24Sat
25Sun8:136.16:356.512:51-0.21:253.27:276:19Third Quarter25Sun
26Mon9:056.37:556.31:590.02:412.67:286:18Third Quarter26Mon
27Tue9:466.69:086.22:570.23:412.07:296:16Waning Crescent27Tue
28Wed10:226.810:136.13:450.54:311.47:306:15Waning Crescent28Wed
29Thu10:537.011:106.04:260.85:150.97:316:14Waning Crescent29Thu
30Fri11:217.15:021.25:540.47:326:13Waning Crescent30Fri
31Sat12:036.011:46 AM7.15:361.76:300.17:336:12New Moon31Sat
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 4:25 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 South San Francisco, CA?

South San Francisco, CA is currently in a spring phase. Tonight's moon is 100% 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 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 Full Moon (100% illuminated). This places South San Francisco, 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