Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 45m at 1:00 pm (1.2 ft)
Next high tide : 7:46 pm (7.0 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Mar 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:146.710:295.92:402.93:350.16:406:03Waning Crescent1Fri
2Sat9:056.811:056.03:342.74:17-0.16:396:04Waning Crescent2Sat
3Sun9:516.811:366.14:182.54:53-0.16:376:05Waning Crescent3Sun
4Mon10:326.84:562.35:26-0.16:366:06New Moon4Mon
5Tue12:036.111:10 AM6.85:312.15:550.06:356:06New Moon5Tue
6Wed12:286.111:48 AM6.76:031.86:240.16:336:07New Moon6Wed
7Thu12:526.212:256.56:351.66:510.36:326:08New Moon7Thu
8Fri1:166.31:046.37:091.47:200.66:306:09Waxing Crescent8Fri
9Sat1:426.41:456.07:451.27:501.06:296:10Waxing Crescent9Sat
10Sun3:106.53:325.79:251.09:231.57:277:11Waxing Crescent10Sun
11Mon3:416.54:305.310:120.910:012.07:267:12Waxing Crescent11Mon
12Tue4:186.65:465.111:070.810:482.57:247:13First Quarter12Tue
13Wed5:046.67:205.012:140.67:237:14First Quarter13Wed
14Thu6:016.68:505.21:270.37:217:15First Quarter14Thu
15Fri7:106.79:555.51:193.02:380.07:207:16First Quarter15Fri
16Sat8:216.910:435.92:392.93:39-0.47:187:17Waxing Gibbous16Sat
17Sun9:277.111:246.23:442.64:33-0.77:177:18Waxing Gibbous17Sun
18Mon10:287.34:402.15:21-0.97:157:19Waxing Gibbous18Mon
19Tue12:026.511:25 AM7.45:321.56:06-0.87:147:20Full Moon19Tue
20Wed12:396.712:207.46:211.06:48-0.67:127:21Full Moon20Wed
21Thu1:157.01:147.27:100.57:30-0.27:117:22Full Moon21Thu
22Fri1:527.12:096.88:000.28:110.47:097:23Waning Gibbous22Fri
23Sat2:297.23:056.48:500.08:541.07:087:23Waning Gibbous23Sat
24Sun3:077.24:066.09:42-0.19:401.77:067:24Waning Gibbous24Sun
25Mon3:477.05:155.610:380.010:322.37:057:25Waning Gibbous25Mon
26Tue4:326.76:375.411:400.211:392.77:037:26Third Quarter26Tue
27Wed5:246.48:055.412:480.37:027:27Third Quarter27Wed
28Thu6:266.29:185.61:033.01:580.37:007:28Third Quarter28Thu
29Fri7:366.010:105.72:242.93:010.36:597:29Third Quarter29Fri
30Sat8:426.010:505.93:282.73:530.36:577:30Waning Crescent30Sat
31Sun9:406.111:226.04:182.44:370.26:567:31Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414391)

Common Questions About South San Francisco, CA Tides

Show All
What time does the tide turn (slack tide) in South San Francisco, CA today?

Slack tide in South San Francisco, CA is approximately 4:23 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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places South San Francisco, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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