Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 19m at 11:01 am (-0.6 ft)
Next high tide : 5:44 pm (7.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Sep 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:1210.72:109.88:24-0.38:461.06:387:37New Moon1Wed
2Thu2:0710.12:4510.29:040.39:370.76:397:35Waxing Crescent2Thu
3Fri3:049.33:2110.49:431.110:300.56:407:34Waxing Crescent3Fri
4Sat4:038.43:5910.410:241.911:260.46:417:33Waxing Crescent4Sat
5Sun5:107.74:4010.111:092.66:417:31Waxing Crescent5Sun
6Mon6:307.15:279.812:280.512:033.36:427:30First Quarter6Mon
7Tue8:057.06:249.41:360.71:163.86:437:28First Quarter7Tue
8Wed9:327.27:309.12:490.72:443.96:447:27First Quarter8Wed
9Thu10:347.58:379.03:580.63:593.86:457:25First Quarter9Thu
10Fri11:177.89:389.14:550.54:573.56:457:23Waxing Gibbous10Fri
11Sat11:518.010:309.25:410.45:433.16:467:22Waxing Gibbous11Sat
12Sun12:198.16:190.36:232.76:477:20Waxing Gibbous12Sun
13Mon12:438.36:510.46:592.46:487:19Waxing Gibbous13Mon
14Tue1:048.57:200.57:332.06:497:17Full Moon14Tue
15Wed12:409.11:268.87:470.88:061.66:507:16Full Moon15Wed
16Thu1:218.81:489.18:131.18:391.36:507:14Full Moon16Thu
17Fri2:038.52:129.48:401.59:141.06:517:13Full Moon17Fri
18Sat2:488.12:389.69:092.09:530.76:527:11Waning Gibbous18Sat
19Sun3:387.73:089.89:412.510:370.56:537:10Waning Gibbous19Sun
20Mon4:367.33:439.810:163.011:280.46:547:08Waning Gibbous20Mon
21Tue5:486.94:289.810:593.56:557:07Third Quarter21Tue
22Wed7:166.75:259.612:300.411:58 AM3.96:557:05Third Quarter22Wed
23Thu8:436.96:379.51:430.31:264.06:567:03Third Quarter23Thu
24Fri9:467.47:559.62:590.13:003.86:577:02Third Quarter24Fri
25Sat10:327.99:099.74:05-0.14:143.36:587:00Waning Crescent25Sat
26Sun11:098.410:179.95:01-0.25:142.56:596:59Waning Crescent26Sun
27Mon11:449.011:199.95:48-0.26:071.77:006:57Waning Crescent27Mon
28Tue12:179.66:310.06:571.07:016:56New Moon28Tue
29Wed12:179.812:5110.17:110.47:440.37:016:54New Moon29Wed
30Thu1:139.51:2410.57:501.08:31-0.17:026:53New Moon30Thu
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 2:22 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 83% 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 Gibbous (83% 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