Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 11:16 pm (2.4 ft)
Next high tide : in 6h 28m at 5:22 pm (6.4 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Oct 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:505.74:357.310:333.17:056:53First Quarter1Wed
2Thu7:205.75:417.112:00-0.111:55 AM3.47:056:51First Quarter2Thu
3Fri8:405.96:576.91:17-0.11:313.47:066:50First Quarter3Fri
4Sat9:396.28:136.82:29-0.12:503.07:076:48Waxing Gibbous4Sat
5Sun10:256.49:216.83:29-0.13:522.67:086:47Waxing Gibbous5Sun
6Mon11:036.610:206.84:200.04:432.17:096:45Waxing Gibbous6Mon
7Tue11:376.711:126.75:020.15:271.67:106:44Waxing Gibbous7Tue
8Wed12:066.85:390.46:071.27:116:42Full Moon8Wed
9Thu12:016.612:326.86:120.76:440.97:126:41Full Moon9Thu
10Fri12:466.412:566.96:441.17:190.77:136:40Full Moon10Fri
11Sat1:316.21:196.97:141.67:530.57:146:38Full Moon11Sat
12Sun2:176.01:426.97:452.18:280.47:146:37Waning Gibbous12Sun
13Mon3:045.82:076.88:162.59:040.47:156:35Waning Gibbous13Mon
14Tue3:575.62:366.78:503.09:460.47:166:34Waning Gibbous14Tue
15Wed4:585.43:126.69:293.310:340.57:176:32Waning Gibbous15Wed
16Thu6:135.43:586.410:233.611:330.67:186:31Third Quarter16Thu
17Fri7:355.44:586.211:503.87:196:30Third Quarter17Fri
18Sat8:385.66:106.112:410.61:263.67:206:28Third Quarter18Sat
19Sun9:205.87:256.11:470.52:333.37:216:27Third Quarter19Sun
20Mon9:536.08:346.22:440.43:232.87:226:26Waning Crescent20Mon
21Tue10:226.39:376.43:320.24:062.27:236:24Waning Crescent21Tue
22Wed10:506.610:356.64:140.24:471.47:246:23Waning Crescent22Wed
23Thu11:197.011:326.64:540.45:290.77:256:22Waning Crescent23Thu
24Fri11:507.35:320.76:130.07:266:21New Moon24Fri
25Sat12:296.612:227.66:121.26:58-0.67:276:19New Moon25Sat
26Sun1:266.511:57 AM7.95:521.76:46-1.06:285:18New Moon26Sun
27Mon1:266.412:368.06:352.27:36-1.16:295:17Waxing Crescent27Mon
28Tue2:296.21:207.97:232.78:31-1.16:305:16Waxing Crescent28Tue
29Wed3:376.12:107.68:183.19:31-0.86:315:15Waxing Crescent29Wed
30Thu4:516.03:097.29:293.410:37-0.56:325:13First Quarter30Thu
31Fri6:056.04:196.711:003.411:48-0.26:335:12First 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 8:19 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 (71% illuminated). This places South San Francisco, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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