Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 4:04 am (1.2 ft)
Next high tide : in 4h 37m at 8:22 pm (9.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Nov 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:018.13:2310.610:193.611:29-1.07:336:09Waning Gibbous1Sat
2Sun5:118.03:189.910:273.911:32-0.56:345:08Third Quarter2Sun
3Mon6:218.04:229.011:533.96:355:07Third Quarter3Mon
4Tue7:258.15:378.312:39-0.11:233.76:365:06Third Quarter4Tue
5Wed8:188.46:557.81:450.22:383.26:375:05Third Quarter5Wed
6Thu9:008.78:117.52:430.53:372.56:385:04Waning Crescent6Thu
7Fri9:348.99:177.43:320.84:261.96:395:03Waning Crescent7Fri
8Sat10:029.210:157.44:131.15:081.36:405:02Waning Crescent8Sat
9Sun10:279.411:087.44:491.65:450.86:415:02Waning Crescent9Sun
10Mon10:509.611:577.45:222.06:190.46:425:01New Moon10Mon
11Tue11:129.75:532.56:510.06:435:00New Moon11Tue
12Wed12:447.511:36 AM9.96:232.97:22-0.26:444:59New Moon12Wed
13Thu1:307.512:029.96:553.37:54-0.46:454:58New Moon13Thu
14Fri2:157.512:329.97:273.68:29-0.56:464:58New Moon14Fri
15Sat3:027.41:059.78:023.99:07-0.56:474:57Waxing Crescent15Sat
16Sun3:537.31:439.58:414.19:51-0.46:484:56Waxing Crescent16Sun
17Mon4:477.32:279.29:304.210:41-0.46:504:56Waxing Crescent17Mon
18Tue5:447.43:218.810:374.211:36-0.26:514:55First Quarter18Tue
19Wed6:367.64:288.312:044.06:524:54First Quarter19Wed
20Thu7:218.05:487.812:350.01:313.56:534:54First Quarter20Thu
21Fri7:598.57:137.51:320.22:402.76:544:53First Quarter21Fri
22Sat8:349.28:357.52:270.53:371.76:554:53Waxing Gibbous22Sat
23Sun9:099.99:507.63:171.04:280.76:564:52Waxing Gibbous23Sun
24Mon9:4410.610:587.94:051.55:16-0.36:574:52Waxing Gibbous24Mon
25Tue10:2011.34:512.16:03-1.16:584:51Full Moon25Tue
26Wed12:028.110:59 AM11.75:382.66:50-1.66:594:51Full Moon26Wed
27Thu1:028.311:41 AM11.86:263.17:38-1.97:004:51Full Moon27Thu
28Fri1:598.412:2511.67:163.48:26-1.87:014:50Full Moon28Fri
29Sat2:558.41:1211.28:093.69:16-1.67:024:50Waning Gibbous29Sat
30Sun3:518.32:0110.59:083.810:07-1.17:034:50Waning Gibbous30Sun
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 12:13 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 Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a neap phase. Tonight's moon is 59% 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 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 First Quarter (59% illuminated). This places Upper Guadalupe Slough, 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