Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 3h 31m at 4:31 am (-0.7 ft)
Next high tide : 11:39 am (5.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:216.411:14 AM8.25:182.46:16-1.57:245:01New Moon1Sun
2Mon1:066.612:048.06:122.37:01-1.37:245:02New Moon2Mon
3Tue1:516.712:547.67:072.37:45-1.07:245:03Waxing Crescent3Tue
4Wed2:346.81:447.18:042.28:29-0.57:245:04Waxing Crescent4Wed
5Thu3:186.82:386.59:042.19:130.07:255:04Waxing Crescent5Thu
6Fri4:026.83:375.910:102.09:590.77:255:05First Quarter6Fri
7Sat4:466.84:465.311:201.810:491.37:245:06First Quarter7Sat
8Sun5:336.86:115.012:321.67:245:07First Quarter8Sun
9Mon6:206.87:444.91:371.27:245:08First Quarter9Mon
10Tue7:066.99:035.112:472.32:340.87:245:09Waxing Gibbous10Tue
11Wed7:527.010:035.41:472.63:220.57:245:10Waxing Gibbous11Wed
12Thu8:357.110:495.62:432.84:030.27:245:11Waxing Gibbous12Thu
13Fri9:167.211:275.83:312.94:39-0.17:245:12Waxing Gibbous13Fri
14Sat9:567.34:142.85:12-0.37:235:13Waxing Gibbous14Sat
15Sun12:015.910:34 AM7.44:532.85:44-0.47:235:14Full Moon15Sun
16Mon12:336.011:12 AM7.35:312.76:14-0.57:235:15Full Moon16Mon
17Tue1:036.111:51 AM7.36:082.66:45-0.57:225:16Full Moon17Tue
18Wed1:346.312:307.16:472.47:17-0.47:225:17Waning Gibbous18Wed
19Thu2:066.41:126.87:292.27:51-0.27:215:18Waning Gibbous19Thu
20Fri2:396.51:576.58:162.18:280.27:215:19Waning Gibbous20Fri
21Sat3:156.72:516.09:091.89:080.77:205:20Waning Gibbous21Sat
22Sun3:556.83:565.510:111.69:541.27:205:21Third Quarter22Sun
23Mon4:407.05:215.111:221.310:491.87:195:23Third Quarter23Mon
24Tue5:317.26:585.012:360.87:195:24Third Quarter24Tue
25Wed6:287.48:285.31:460.37:185:25Third Quarter25Wed
26Thu7:287.69:365.61:092.62:47-0.27:175:26Waning Crescent26Thu
27Fri8:267.810:316.02:202.63:42-0.77:175:27Waning Crescent27Fri
28Sat9:228.011:176.33:232.54:31-1.07:165:28Waning Crescent28Sat
29Sun10:168.04:202.35:16-1.17:155:29New Moon29Sun
30Mon12:006.511:06 AM7.95:132.15:59-1.07:145:30New Moon30Mon
31Tue12:406.711:55 AM7.76:031.96:39-0.87:145:31New Moon31Tue
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 8:05 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 10% 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 (10% 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