Tides Today & Tomorrow in South San Francisco, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in South San Francisco, CA.
Next low tide : 9:14 am (-0.5 ft)
Next high tide : in 47m at 2:04 am (6.8 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9414391
Common Questions About Tides

South San Francisco, CA Tides - Dec 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:256.45:265.512:282.57:054:51Third Quarter1Sat
2Sun7:086.66:515.212:110.71:361.97:064:51Third Quarter2Sun
3Mon7:466.88:165.11:021.32:321.37:074:51Waning Crescent3Mon
4Tue8:196.99:295.21:501.83:190.87:084:50Waning Crescent4Tue
5Wed8:497.110:315.42:352.24:000.37:094:50Waning Crescent5Wed
6Thu9:187.211:245.53:172.74:36-0.17:104:50Waning Crescent6Thu
7Fri9:487.33:583.05:10-0.37:114:50New Moon7Fri
8Sat12:105.710:19 AM7.34:363.25:43-0.57:124:50New Moon8Sat
9Sun12:525.810:52 AM7.35:133.46:16-0.67:124:50New Moon9Sun
10Mon1:315.811:28 AM7.35:503.56:51-0.77:134:51New Moon10Mon
11Tue2:085.812:057.26:273.57:27-0.77:144:51Waxing Crescent11Tue
12Wed2:465.812:447.17:073.58:04-0.77:154:51Waxing Crescent12Wed
13Thu3:255.81:256.97:543.48:44-0.67:154:51Waxing Crescent13Thu
14Fri4:045.92:136.58:503.39:27-0.37:164:51Waxing Crescent14Fri
15Sat4:436.13:096.19:583.110:120.17:174:52First Quarter15Sat
16Sun5:216.34:205.611:142.611:000.67:174:52First Quarter16Sun
17Mon6:006.65:495.212:282.07:184:52First Quarter17Mon
18Tue6:407.07:265.11:341.27:194:53First Quarter18Tue
19Wed7:207.48:565.312:471.82:310.37:194:53Waxing Gibbous19Wed
20Thu8:037.810:105.61:442.33:24-0.57:204:53Waxing Gibbous20Thu
21Fri8:498.111:135.92:412.74:14-1.17:204:54Waxing Gibbous21Fri
22Sat9:378.43:373.05:03-1.57:214:54Full Moon22Sat
23Sun12:076.110:26 AM8.44:323.15:51-1.77:214:55Full Moon23Sun
24Mon12:576.211:16 AM8.45:273.16:39-1.77:224:56Full Moon24Mon
25Tue1:446.312:068.16:223.07:25-1.57:224:56Waning Gibbous25Tue
26Wed2:296.412:567.77:182.98:10-1.17:234:57Waning Gibbous26Wed
27Thu3:136.41:477.18:172.88:54-0.77:234:57Waning Gibbous27Thu
28Fri3:566.42:406.59:212.79:37-0.17:234:58Waning Gibbous28Fri
29Sat4:386.53:395.810:312.510:210.67:234:59Third Quarter29Sat
30Sun5:196.54:515.211:452.111:071.37:244:59Third Quarter30Sun
31Mon5:596.66:294.812:551.77:245:00Third Quarter31Mon
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 5:39 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 87% 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 (87% 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