Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 6:14 am (-1.5 ft)
Next high tide (tomorrow) : in 1h 23m at 10:44 pm (8.4 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Mar 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:516.711:236.04:162.34:480.16:396:03Waning Crescent1Sun
2Mon10:336.711:466.14:532.05:170.16:386:04New Moon2Mon
3Tue11:126.65:271.75:440.36:376:05New Moon3Tue
4Wed12:086.311:52 AM6.56:001.46:110.56:356:06New Moon4Wed
5Thu12:326.512:326.36:331.16:380.86:346:07New Moon5Thu
6Fri12:566.61:146.07:080.97:071.16:326:08Waxing Crescent6Fri
7Sat1:236.82:005.87:460.77:381.66:316:09Waxing Crescent7Sat
8Sun1:526.92:545.48:290.58:122.06:296:10Waxing Crescent8Sun
9Mon2:276.94:005.19:190.48:532.56:286:11Waxing Crescent9Mon
10Tue3:096.95:245.010:200.39:472.96:276:12First Quarter10Tue
11Wed4:036.96:575.011:310.211:063.16:256:13First Quarter11Wed
12Thu5:106.88:105.312:460.06:246:14First Quarter12Thu
13Fri6:256.89:025.612:383.11:54-0.26:226:15Waxing Gibbous13Fri
14Sat7:397.09:436.01:572.72:51-0.56:216:16Waxing Gibbous14Sat
15Sun8:467.110:206.43:002.13:40-0.56:196:17Waxing Gibbous15Sun
16Mon9:477.110:566.73:551.54:25-0.56:186:18Waxing Gibbous16Mon
17Tue10:457.111:317.04:460.95:06-0.26:166:18Full Moon17Tue
18Wed11:406.95:340.35:470.26:156:19Full Moon18Wed
19Thu12:067.312:346.76:22-0.16:260.76:136:20Full Moon19Thu
20Fri12:417.41:296.37:10-0.37:071.26:116:21Waning Gibbous20Fri
21Sat1:177.42:256.07:58-0.47:491.86:106:22Waning Gibbous21Sat
22Sun1:547.23:275.68:48-0.38:352.36:086:23Waning Gibbous22Sun
23Mon2:357.04:375.49:420.09:292.76:076:24Waning Gibbous23Mon
24Tue3:216.75:585.210:430.210:423.06:056:25Third Quarter24Tue
25Wed4:176.37:195.311:520.46:046:26Third Quarter25Wed
26Thu5:236.18:205.412:093.11:000.56:026:27Third Quarter26Thu
27Fri6:345.99:045.61:252.91:590.56:016:28Third Quarter27Fri
28Sat7:415.99:365.82:252.52:480.45:596:29Waning Crescent28Sat
29Sun8:406.010:035.93:132.13:280.55:586:29Waning Crescent29Sun
30Mon9:316.010:276.13:541.74:020.65:566:30Waning Crescent30Mon
31Tue10:186.010:506.34:311.34:330.75:556:31Waning Crescent31Tue
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 2:29 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 4% 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 Waning Crescent (4% 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