Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 2h 36m at 8:09 am (-0.7 ft)
Next high tide : 3:19 pm (5.8 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:517.58:455.212:152.12:150.37:245:02Waning Crescent1Mon
2Tue7:417.710:015.51:192.63:12-0.27:245:02Waning Crescent2Tue
3Wed8:307.710:595.82:243.04:02-0.67:245:03Waning Crescent3Wed
4Thu9:187.811:476.03:243.14:47-0.87:245:04Waning Crescent4Thu
5Fri10:037.74:183.25:28-0.97:245:05New Moon5Fri
6Sat12:296.110:46 AM7.65:063.16:05-0.87:245:06New Moon6Sat
7Sun1:076.111:27 AM7.45:513.16:40-0.87:245:07New Moon7Sun
8Mon1:416.112:057.26:333.07:14-0.67:245:08New Moon8Mon
9Tue2:116.112:436.97:142.87:45-0.37:245:09Waxing Crescent9Tue
10Wed2:406.11:216.57:562.78:160.07:245:10Waxing Crescent10Wed
11Thu3:086.22:026.18:422.68:470.47:245:11Waxing Crescent11Thu
12Fri3:366.32:495.69:342.49:191.07:235:12Waxing Crescent12Fri
13Sat4:066.43:475.110:332.29:531.57:235:13First Quarter13Sat
14Sun4:406.55:084.711:401.910:332.17:235:14First Quarter14Sun
15Mon5:196.76:584.612:471.47:235:15First Quarter15Mon
16Tue6:046.88:454.81:480.97:225:16First Quarter16Tue
17Wed6:547.19:555.212:343.12:420.47:225:17Waxing Gibbous17Wed
18Thu7:467.310:435.51:453.33:30-0.27:215:18Waxing Gibbous18Thu
19Fri8:397.611:235.82:473.44:14-0.77:215:19Waxing Gibbous19Fri
20Sat9:317.911:596.03:413.24:57-1.17:205:20Waxing Gibbous20Sat
21Sun10:228.14:323.05:39-1.47:205:21Full Moon21Sun
22Mon12:356.211:12 AM8.15:222.76:20-1.57:195:22Full Moon22Mon
23Tue1:106.412:038.06:132.37:00-1.37:195:23Full Moon23Tue
24Wed1:456.612:557.67:061.97:40-0.97:185:24Waning Gibbous24Wed
25Thu2:226.91:517.08:031.68:21-0.37:185:25Waning Gibbous25Thu
26Fri3:007.12:526.39:041.39:020.57:175:26Waning Gibbous26Fri
27Sat3:407.34:035.610:111.09:471.37:165:28Third Quarter27Sat
28Sun4:257.45:325.111:250.810:402.17:155:29Third Quarter28Sun
29Mon5:157.47:195.012:420.57:155:30Third Quarter29Mon
30Tue6:127.48:545.31:540.17:145:31Third Quarter30Tue
31Wed7:127.310:005.61:083.12:57-0.17:135:32Waning Crescent31Wed
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 11:44 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 97% 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 Full Moon (97% 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