Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide (tomorrow) : 1:32 am (1.3 ft)
Next high tide : in 4h 06m at 6:34 pm (6.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Dec 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:406.97:355.612:480.62:051.67:054:51Third Quarter1Wed
2Thu8:237.18:495.61:441.03:001.17:064:51Waning Crescent2Thu
3Fri9:017.29:525.62:341.43:470.67:074:51Waning Crescent3Fri
4Sat9:357.310:475.73:191.74:270.27:084:50Waning Crescent4Sat
5Sun10:067.311:365.84:002.15:04-0.17:094:50Waning Crescent5Sun
6Mon10:367.34:392.45:37-0.27:104:50New Moon6Mon
7Tue12:215.911:05 AM7.35:162.76:10-0.47:114:50New Moon7Tue
8Wed1:025.911:36 AM7.25:532.96:42-0.47:124:50New Moon8Wed
9Thu1:425.912:087.16:293.07:15-0.47:124:50New Moon9Thu
10Fri2:215.912:426.97:073.17:50-0.47:134:51Waxing Crescent10Fri
11Sat3:005.91:196.77:483.28:27-0.37:144:51Waxing Crescent11Sat
12Sun3:415.91:596.58:363.39:08-0.17:154:51Waxing Crescent12Sun
13Mon4:256.02:476.19:343.29:530.17:154:51Waxing Crescent13Mon
14Tue5:096.13:465.810:443.110:430.47:164:51First Quarter14Tue
15Wed5:546.34:595.511:592.711:370.77:174:52First Quarter15Wed
16Thu6:386.56:245.31:062.17:174:52First Quarter16Thu
17Fri7:206.97:495.312:331.12:021.47:184:52Waxing Gibbous17Fri
18Sat8:017.29:045.51:291.42:530.67:194:53Waxing Gibbous18Sat
19Sun8:427.610:105.82:231.73:41-0.27:194:53Waxing Gibbous19Sun
20Mon9:258.011:096.13:152.04:28-0.87:204:53Waxing Gibbous20Mon
21Tue10:108.24:062.25:15-1.37:204:54Full Moon21Tue
22Wed12:046.310:56 AM8.44:572.46:02-1.67:214:54Full Moon22Wed
23Thu12:566.511:44 AM8.35:502.56:50-1.67:214:55Full Moon23Thu
24Fri1:476.612:348.16:442.67:39-1.57:224:55Waning Gibbous24Fri
25Sat2:376.61:267.77:422.68:28-1.27:224:56Waning Gibbous25Sat
26Sun3:276.62:217.28:462.69:18-0.77:234:57Waning Gibbous26Sun
27Mon4:186.73:216.59:562.510:10-0.17:234:57Third Quarter27Mon
28Tue5:106.74:295.911:132.311:050.57:234:58Third Quarter28Tue
29Wed6:016.85:505.412:291.97:234:59Third Quarter29Wed
30Thu6:516.97:185.212:031.11:381.57:244:59Third Quarter30Thu
31Fri7:367.08:415.21:021.62:371.07:245:00Waning Crescent31Fri
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 10:03 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 50% 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 Third Quarter (50% 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