Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:03 pm (2.7 ft)
Next high tide : in 1h 27m at 10:40 am (6.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Sep 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:207.34:099.510:312.411:381.26:397:36Waning Gibbous1Fri
2Sat5:266.74:469.611:063.06:397:35Third Quarter2Sat
3Sun6:556.45:359.612:381.011:52 AM3.66:407:33Third Quarter3Sun
4Mon8:426.56:379.71:490.81:024.06:417:32Third Quarter4Mon
5Tue10:036.97:489.93:050.52:364.16:427:30Third Quarter5Tue
6Wed10:537.49:0010.24:140.03:583.86:437:29Waning Crescent6Wed
7Thu11:327.910:0610.65:11-0.45:023.36:447:27Waning Crescent7Thu
8Fri12:078.46:00-0.65:572.66:447:26Waning Crescent8Fri
9Sat12:418.96:44-0.76:491.96:457:24New Moon9Sat
10Sun12:0410.81:149.57:26-0.57:401.26:467:22New Moon10Sun
11Mon1:0010.51:4710.08:050.08:300.76:477:21New Moon11Mon
12Tue1:569.92:2210.48:440.69:210.36:487:19Waxing Crescent12Tue
13Wed2:539.22:5710.69:241.310:130.16:497:18Waxing Crescent13Wed
14Thu3:548.53:3510.610:052.111:070.16:497:16Waxing Crescent14Thu
15Fri5:007.84:1710.310:512.86:507:15Waxing Crescent15Fri
16Sat6:187.35:049.812:060.211:46 AM3.56:517:13First Quarter16Sat
17Sun7:497.26:029.31:130.41:013.96:527:12First Quarter17Sun
18Mon9:157.47:109.02:270.52:324.06:537:10First Quarter18Mon
19Tue10:167.78:218.83:370.63:503.86:537:09First Quarter19Tue
20Wed11:007.99:268.84:360.54:493.46:547:07Waxing Gibbous20Wed
21Thu11:348.110:218.95:240.45:363.06:557:06Waxing Gibbous21Thu
22Fri12:018.36:030.56:162.56:567:04Waxing Gibbous22Fri
23Sat12:258.46:360.56:522.16:577:02Waxing Gibbous23Sat
24Sun12:468.77:050.77:261.76:587:01Full Moon24Sun
25Mon12:358.71:078.97:321.07:581.36:596:59Full Moon25Mon
26Tue1:178.51:289.27:581.48:301.06:596:58Full Moon26Tue
27Wed2:008.31:529.58:261.89:040.77:006:56Full Moon27Wed
28Thu2:458.02:179.78:542.39:400.47:016:55Waning Gibbous28Thu
29Fri3:357.62:479.89:252.810:220.37:026:53Waning Gibbous29Fri
30Sat4:327.33:229.810:003.211:110.27:036:52Waning Gibbous30Sat
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 1:21 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 transitional phase. Tonight's moon is 77% 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 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 Waxing Gibbous (77% illuminated). This places Upper Guadalupe Slough, 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