Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in South San Francisco, CA.
Next low tide : in 5h 07m at 10:14 pm (2.8 ft)
Next high tide (tomorrow) : 3:33 am (6.1 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Jan 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:286.03:035.810:002.99:560.57:245:02Third Quarter1Sat
2Sun5:036.24:075.311:082.510:381.17:245:02Third Quarter2Sun
3Mon5:386.55:344.912:182.07:245:03Third Quarter3Mon
4Tue6:176.87:194.81:221.37:245:04Third Quarter4Tue
5Wed6:587.18:555.012:212.32:180.67:245:05Waning Crescent5Wed
6Thu7:427.510:105.41:212.83:10-0.27:245:06Waning Crescent6Thu
7Fri8:307.811:085.82:233.14:00-0.97:245:07Waning Crescent7Fri
8Sat9:208.111:586.03:223.34:49-1.47:245:08Waning Crescent8Sat
9Sun10:128.44:183.25:37-1.77:245:09New Moon9Sun
10Mon12:436.211:05 AM8.45:133.16:25-1.87:245:10New Moon10Mon
11Tue1:266.311:58 AM8.36:082.97:12-1.77:245:11New Moon11Tue
12Wed2:086.512:518.07:052.77:57-1.47:245:12Waxing Crescent12Wed
13Thu2:506.61:467.48:052.48:42-0.97:235:13Waxing Crescent13Thu
14Fri3:316.72:446.79:102.29:26-0.27:235:14Waxing Crescent14Fri
15Sat4:146.83:495.910:211.910:110.67:235:15First Quarter15Sat
16Sun4:577.05:095.311:361.611:001.47:225:16First Quarter16Sun
17Mon5:417.16:484.912:511.17:225:17First Quarter17Mon
18Tue6:287.18:305.01:580.77:225:18First Quarter18Tue
19Wed7:157.29:495.31:002.72:560.37:215:19Waxing Gibbous19Wed
20Thu8:027.210:465.62:063.13:450.07:215:20Waxing Gibbous20Thu
21Fri8:477.211:315.83:063.34:27-0.37:205:21Waxing Gibbous21Fri
22Sat9:307.33:573.35:05-0.47:205:22Waxing Gibbous22Sat
23Sun12:085.910:11 AM7.34:413.35:40-0.57:195:23Full Moon23Sun
24Mon12:416.010:50 AM7.35:203.26:11-0.57:185:24Full Moon24Mon
25Tue1:106.011:27 AM7.25:553.06:41-0.57:185:25Full Moon25Tue
26Wed1:376.012:037.16:302.97:10-0.57:175:26Full Moon26Wed
27Thu2:026.012:406.97:062.77:38-0.37:165:28Waning Gibbous27Thu
28Fri2:286.11:176.67:452.58:070.07:165:29Waning Gibbous28Fri
29Sat2:556.21:596.28:292.38:370.47:155:30Waning Gibbous29Sat
30Sun3:236.42:495.79:202.19:091.07:145:31Waning Gibbous30Sun
31Mon3:546.63:555.210:181.79:461.67:135:32Third Quarter31Mon
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 12:53 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 80% 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 Gibbous (80% 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