Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 7:02 am (-1.6 ft)
Next high tide (tomorrow) : in 1h 11m at 11:39 pm (8.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:58 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Dec 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:098.34:102.75:26-1.67:054:51Full Moon1Sat
2Sun12:276.210:55 AM8.45:012.96:15-1.87:064:51Full Moon2Sun
3Mon1:206.211:45 AM8.45:533.07:04-1.87:074:51Full Moon3Mon
4Tue2:116.312:378.16:493.07:55-1.67:084:50Waning Gibbous4Tue
5Wed3:036.31:317.77:503.08:46-1.27:094:50Waning Gibbous5Wed
6Thu3:546.32:297.18:592.99:38-0.77:104:50Waning Gibbous6Thu
7Fri4:446.43:346.410:162.710:31-0.17:114:50Third Quarter7Fri
8Sat5:346.64:475.711:372.311:250.67:124:50Third Quarter8Sat
9Sun6:216.86:135.312:531.87:124:50Third Quarter9Sun
10Mon7:066.97:445.112:191.21:591.27:134:51Third Quarter10Mon
11Tue7:467.19:075.21:141.82:540.67:144:51Waning Crescent11Tue
12Wed8:237.210:155.42:062.33:400.27:154:51Waning Crescent12Wed
13Thu8:587.311:105.62:562.74:20-0.17:164:51Waning Crescent13Thu
14Fri9:327.311:575.83:423.04:57-0.47:164:51Waning Crescent14Fri
15Sat10:067.44:253.25:32-0.57:174:52New Moon15Sat
16Sun12:385.910:41 AM7.35:053.36:05-0.67:184:52New Moon16Sun
17Mon1:155.911:16 AM7.35:433.46:38-0.67:184:52New Moon17Mon
18Tue1:495.911:52 AM7.26:203.47:11-0.67:194:53New Moon18Tue
19Wed2:225.912:297.16:583.37:44-0.67:194:53Waxing Crescent19Wed
20Thu2:555.91:086.87:393.28:19-0.47:204:54Waxing Crescent20Thu
21Fri3:286.01:496.58:263.18:55-0.27:204:54Waxing Crescent21Fri
22Sat4:026.12:376.19:223.09:330.27:214:55Waxing Crescent22Sat
23Sun4:376.33:365.610:282.610:150.77:214:55First Quarter23Sun
24Mon5:146.54:545.111:392.211:021.27:224:56First Quarter24Mon
25Tue5:536.86:314.912:481.57:224:56First Quarter25Tue
26Wed6:357.28:105.01:500.77:234:57First Quarter26Wed
27Thu7:207.69:335.312:542.42:450.07:234:57Waxing Gibbous27Thu
28Fri8:087.910:385.61:562.83:38-0.77:234:58Waxing Gibbous28Fri
29Sat8:598.211:325.92:563.04:28-1.37:244:59Waxing Gibbous29Sat
30Sun9:518.43:543.15:17-1.67:245:00Full Moon30Sun
31Mon12:206.210:44 AM8.54:503.06:04-1.77:245:00Full Moon31Mon
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 3:20 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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