Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 1h 54m at 7:48 am (-1.5 ft)
Next high tide : 2:43 pm (6.4 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:00 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:365.33:456.69:453.411:130.67:066:51Third Quarter1Wed
2Thu7:005.24:416.510:493.67:076:50Third Quarter2Thu
3Fri8:165.45:506.412:210.612:253.77:076:48Third Quarter3Fri
4Sat9:065.67:066.41:310.41:523.47:086:47Third Quarter4Sat
5Sun9:425.98:186.62:320.22:552.97:096:45Waning Crescent5Sun
6Mon10:146.29:256.73:230.13:472.27:106:44Waning Crescent6Mon
7Tue10:446.610:276.84:080.14:351.57:116:42Waning Crescent7Tue
8Wed11:157.011:266.94:490.35:220.77:126:41Waning Crescent8Wed
9Thu11:477.45:300.66:090.07:136:39New Moon9Thu
10Fri12:256.812:207.76:101.16:56-0.67:146:38New Moon10Fri
11Sat1:246.712:578.06:511.67:45-0.97:156:36New Moon11Sat
12Sun2:246.51:378.07:352.28:37-1.07:166:35Waxing Crescent12Sun
13Mon3:276.22:217.98:222.79:31-0.97:176:34Waxing Crescent13Mon
14Tue4:346.03:117.69:173.110:31-0.67:176:32Waxing Crescent14Tue
15Wed5:475.94:097.210:263.311:38-0.37:186:31First Quarter15Wed
16Thu7:025.95:166.711:553.47:196:29First Quarter16Thu
17Fri8:096.06:326.412:490.01:243.27:206:28First Quarter17Fri
18Sat9:016.27:496.11:550.22:372.77:216:27First Quarter18Sat
19Sun9:436.48:596.02:520.43:352.27:226:25Waxing Gibbous19Sun
20Mon10:176.510:016.03:390.64:231.77:236:24Waxing Gibbous20Mon
21Tue10:466.710:556.04:180.95:041.27:246:23Waxing Gibbous21Tue
22Wed11:106.811:445.94:531.35:410.87:256:21Waxing Gibbous22Wed
23Thu11:336.95:251.66:140.57:266:20Full Moon23Thu
24Fri12:315.911:55 AM7.05:552.06:450.27:276:19Full Moon24Fri
25Sat1:165.912:187.16:252.47:160.07:286:18Full Moon25Sat
26Sun2:005.812:447.16:562.77:48-0.17:296:17Full Moon26Sun
27Mon2:465.71:147.17:283.08:24-0.27:306:15Waning Gibbous27Mon
28Tue3:345.61:477.08:023.39:03-0.27:316:14Waning Gibbous28Tue
29Wed4:275.62:266.98:423.59:49-0.17:326:13Waning Gibbous29Wed
30Thu5:255.53:126.79:323.610:410.07:336:12Waning Gibbous30Thu
31Fri6:265.54:096.410:413.611:400.17:346:11Third Quarter31Fri
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 11:15 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 3% 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 (3% 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