Tides Today & Tomorrow in San Francisco, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in San Francisco, CA.
Next low tide : 9:18 pm (2.8 ft)
Next high tide : in 5h 52m at 4:12 pm (4.9 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9414290
Common Questions About Tides

San Francisco, CA Tides - Aug 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:133.66:135.512:171.911:24 AM2.36:138:18Third Quarter1Thu
2Fri7:553.66:585.61:201.512:212.86:148:17Third Quarter2Fri
3Sat9:233.97:465.92:151.01:253.16:158:16Waning Crescent3Sat
4Sun10:254.28:356.13:040.52:243.26:168:15Waning Crescent4Sun
5Mon11:124.49:246.43:490.03:173.36:168:14Waning Crescent5Mon
6Tue11:524.710:126.64:31-0.44:053.26:178:13Waning Crescent6Tue
7Wed12:294.95:12-0.84:523.06:188:12New Moon7Wed
8Thu1:065.05:54-1.05:392.76:198:11New Moon8Thu
9Fri1:425.26:35-1.16:282.46:208:10New Moon9Fri
10Sat12:386.72:185.47:16-0.97:202.16:218:09Waxing Crescent10Sat
11Sun1:306.32:565.67:57-0.58:171.86:228:08Waxing Crescent11Sun
12Mon2:265.83:355.88:390.09:191.56:228:06Waxing Crescent12Mon
13Tue3:295.24:186.09:240.710:271.26:238:05First Quarter13Tue
14Wed4:434.65:056.110:131.511:420.96:248:04First Quarter14Wed
15Thu6:124.25:576.211:112.26:258:03First Quarter15Thu
16Fri7:504.26:546.312:560.512:212.76:268:01First Quarter16Fri
17Sat9:164.47:536.32:050.21:363.06:278:00Waxing Gibbous17Sat
18Sun10:194.78:506.43:05-0.12:433.16:287:59Waxing Gibbous18Sun
19Mon11:094.99:436.43:57-0.33:413.06:287:57Waxing Gibbous19Mon
20Tue11:515.110:316.34:42-0.44:312.96:297:56Waxing Gibbous20Tue
21Wed12:285.15:22-0.45:152.76:307:55Full Moon21Wed
22Thu1:015.15:58-0.35:552.56:317:53Full Moon22Thu
23Fri1:305.16:31-0.16:332.36:327:52Full Moon23Fri
24Sat12:345.81:565.17:020.17:112.26:337:51Full Moon24Sat
25Sun1:135.52:215.17:320.57:492.06:347:49Waning Gibbous25Sun
26Mon1:535.22:475.28:020.98:301.96:347:48Waning Gibbous26Mon
27Tue2:364.83:145.38:321.49:151.86:357:46Waning Gibbous27Tue
28Wed3:274.43:455.39:051.910:071.66:367:45Waning Gibbous28Wed
29Thu4:314.04:235.49:432.411:091.56:377:43Third Quarter29Thu
30Fri5:583.85:095.410:332.96:387:42Third Quarter30Fri
31Sat7:423.86:045.512:171.211:43 AM3.36:397:41Third Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414290)

Common Questions About San Francisco, CA Tides

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What time does the tide turn (slack tide) in San Francisco, CA today?

Slack tide in San Francisco, CA is approximately 6:45 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 San Francisco, CA?

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 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 San Francisco, CA?

Tide predictions for 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 San Francisco, CA?

Tide data for San Francisco, CA is sourced from NOAA Station #9414290. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414290.

What is the moon phase in San Francisco, CA tonight?

Tonight the moon over San Francisco, CA is Waning Gibbous (80% illuminated). This places 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