Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 7:14 pm (3.3 ft)
Next high tide : in 1h 18m at 2:48 pm (5.8 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Dec 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:347.210:075.52:162.03:390.27:064:51Waxing Gibbous1Thu
2Fri9:087.611:075.73:012.44:20-0.57:074:51Waxing Gibbous2Fri
3Sat9:457.93:462.75:03-1.17:084:50Full Moon3Sat
4Sun12:035.910:27 AM8.14:323.05:48-1.57:094:50Full Moon4Sun
5Mon12:566.111:12 AM8.35:203.26:35-1.77:104:50Full Moon5Mon
6Tue1:476.112:018.26:113.27:24-1.77:114:50Waning Gibbous6Tue
7Wed2:386.212:548.07:073.28:15-1.57:114:50Waning Gibbous7Wed
8Thu3:286.21:507.68:103.19:07-1.17:124:50Waning Gibbous8Thu
9Fri4:186.32:517.09:233.010:00-0.67:134:50Waning Gibbous9Fri
10Sat5:086.54:016.310:452.610:550.07:144:51Third Quarter10Sat
11Sun5:566.75:225.612:082.17:154:51Third Quarter11Sun
12Mon6:427.06:535.31:221.57:154:51Third Quarter12Mon
13Tue7:257.28:245.212:441.32:250.87:164:51Waning Crescent13Tue
14Wed8:067.49:425.41:391.93:180.27:174:52Waning Crescent14Wed
15Thu8:457.510:475.62:312.54:04-0.37:174:52Waning Crescent15Thu
16Fri9:217.611:415.83:222.94:45-0.57:184:52Waning Crescent16Fri
17Sat9:577.54:093.25:23-0.77:194:53New Moon17Sat
18Sun12:285.910:33 AM7.54:543.35:59-0.77:194:53New Moon18Sun
19Mon1:106.011:09 AM7.45:363.46:33-0.77:204:53New Moon19Mon
20Tue1:486.011:45 AM7.36:163.47:08-0.77:204:54New Moon20Tue
21Wed2:235.912:217.16:553.47:42-0.67:214:54Waxing Crescent21Wed
22Thu2:565.912:596.97:353.38:16-0.47:214:55Waxing Crescent22Thu
23Fri3:295.91:386.58:203.38:51-0.27:224:55Waxing Crescent23Fri
24Sat4:015.92:226.19:133.19:270.27:224:56Waxing Crescent24Sat
25Sun4:346.13:135.710:152.910:050.67:224:57First Quarter25Sun
26Mon5:086.34:195.211:242.510:471.17:234:57First Quarter26Mon
27Tue5:446.55:474.812:322.07:234:58First Quarter27Tue
28Wed6:216.87:284.81:321.37:234:59First Quarter28Wed
29Thu7:017.19:015.012:272.32:250.67:244:59Waxing Gibbous29Thu
30Fri7:447.510:135.41:262.73:14-0.17:245:00Waxing Gibbous30Fri
31Sat8:307.811:115.72:243.14:02-0.87:245:01Waxing Gibbous31Sat
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 5:01 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 99% 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 (99% 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