Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 5:02 pm (3.6 ft)
Next high tide : in 1h 11m at 12:15 pm (7.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jul 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:149.35:419.511:33-0.55:518:33Waning Gibbous1Fri
2Sat5:208.16:279.812:262.012:210.35:518:32Third Quarter2Sat
3Sun6:367.17:1510.11:421.61:131.15:528:32Third Quarter3Sun
4Mon8:066.58:0510.32:561.12:111.95:528:32Third Quarter4Mon
5Tue9:386.58:5510.44:050.63:132.55:538:32Waning Crescent5Tue
6Wed10:586.89:4510.55:050.14:163.05:538:32Waning Crescent6Wed
7Thu12:017.35:57-0.25:143.25:548:31Waning Crescent7Thu
8Fri12:527.66:42-0.56:073.35:548:31Waning Crescent8Fri
9Sat1:357.87:22-0.66:553.45:558:31New Moon9Sat
10Sun2:137.97:58-0.67:383.35:568:31New Moon10Sun
11Mon12:3510.22:478.08:32-0.68:193.35:568:30New Moon11Mon
12Tue1:139.93:188.09:03-0.58:583.15:578:30New Moon12Tue
13Wed1:509.63:468.19:33-0.39:383.05:588:29Waxing Crescent13Wed
14Thu2:279.24:148.210:03-0.110:202.95:588:29Waxing Crescent14Thu
15Fri3:068.64:428.410:330.311:062.75:598:28Waxing Crescent15Fri
16Sat3:497.95:138.711:050.711:572.56:008:28Waxing Crescent16Sat
17Sun4:387.25:468.911:381.36:008:27First Quarter17Sun
18Mon5:406.56:249.212:562.212:171.86:018:27First Quarter18Mon
19Tue7:026.07:089.52:011.91:032.46:028:26First Quarter19Tue
20Wed8:425.97:579.93:061.32:013.06:038:25First Quarter20Wed
21Thu10:136.28:5010.34:070.73:093.36:038:25Waxing Gibbous21Thu
22Fri11:206.89:4410.85:020.14:163.46:048:24Waxing Gibbous22Fri
23Sat12:117.35:52-0.55:173.46:058:23Waxing Gibbous23Sat
24Sun12:557.86:40-1.06:143.26:068:23Waxing Gibbous24Sun
25Mon1:368.37:26-1.47:092.86:078:22Full Moon25Mon
26Tue12:2611.72:158.88:10-1.58:032.56:078:21Full Moon26Tue
27Wed1:1911.52:549.28:54-1.38:592.16:088:20Full Moon27Wed
28Thu2:1310.93:349.69:36-0.99:561.86:098:19Waning Gibbous28Thu
29Fri3:0910.14:1410.010:19-0.310:561.56:108:18Waning Gibbous29Fri
30Sat4:089.14:5610.211:030.46:118:17Waning Gibbous30Sat
31Sun5:148.05:4110.312:011.311:50 AM1.36:128:17Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 2:38 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 Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a spring phase. Tonight's moon is 10% 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 Upper Guadalupe Slough, 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 Upper Guadalupe Slough, CA?

Tide predictions for Upper Guadalupe Slough, 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 Upper Guadalupe Slough, CA?

Tide data for Upper Guadalupe Slough, CA is sourced from NOAA Station #9414549. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414549.

What is the moon phase in Upper Guadalupe Slough, CA tonight?

Tonight the moon over Upper Guadalupe Slough, CA is Waning Crescent (10% illuminated). This places Upper Guadalupe Slough, 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