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 6h 22m 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 - May 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:1410.55:567.611:19-1.511:123.56:127:58Waxing Crescent1Thu
2Fri4:089.87:057.512:20-1.16:107:59First Quarter2Fri
3Sat5:108.98:097.712:333.61:25-0.66:097:59First Quarter3Sat
4Sun6:228.19:047.92:023.42:30-0.26:088:00First Quarter4Sun
5Mon7:417.49:488.23:222.93:290.16:078:01First Quarter5Mon
6Tue8:597.010:258.54:272.34:200.56:068:02Waxing Gibbous6Tue
7Wed10:106.910:568.85:201.65:030.96:058:03Waxing Gibbous7Wed
8Thu11:136.811:229.06:051.05:411.46:048:04Waxing Gibbous8Thu
9Fri12:096.86:440.56:161.86:038:05Waxing Gibbous9Fri
10Sat1:006.97:190.06:492.36:028:06Full Moon10Sat
11Sun12:099.41:487.07:52-0.37:212.86:018:07Full Moon11Sun
12Mon12:349.52:347.08:23-0.57:543.16:008:07Full Moon12Mon
13Tue1:019.63:197.18:56-0.78:273.45:598:08Full Moon13Tue
14Wed1:319.54:047.09:30-0.89:023.65:598:09Waning Gibbous14Wed
15Thu2:049.44:517.010:07-0.89:413.85:588:10Waning Gibbous15Thu
16Fri2:429.25:416.910:49-0.810:273.95:578:11Waning Gibbous16Fri
17Sat3:248.96:327.011:36-0.711:283.95:568:12Waning Gibbous17Sat
18Sun4:148.57:227.112:27-0.55:558:13Third Quarter18Sun
19Mon5:148.08:057.512:463.71:21-0.35:558:13Third Quarter19Mon
20Tue6:277.58:448.02:103.32:15-0.15:548:14Third Quarter20Tue
21Wed7:497.19:198.63:222.63:080.35:538:15Third Quarter21Wed
22Thu9:146.99:549.44:211.73:590.85:538:16Waning Crescent22Thu
23Fri10:337.010:2910.15:140.64:471.35:528:17Waning Crescent23Fri
24Sat11:467.211:0610.86:04-0.35:351.95:528:17Waning Crescent24Sat
25Sun12:527.56:52-1.26:232.55:518:18New Moon25Sun
26Mon1:547.87:40-1.87:132.95:508:19New Moon26Mon
27Tue12:2911.52:528.08:29-2.18:043.25:508:20New Moon27Tue
28Wed1:1611.43:488.09:19-2.18:593.45:508:20Waxing Crescent28Wed
29Thu2:0411.14:428.010:10-1.99:593.55:498:21Waxing Crescent29Thu
30Fri2:5610.45:378.011:01-1.511:053.55:498:22Waxing Crescent30Fri
31Sat3:509.66:308.011:54-1.15:488:22Waxing Crescent31Sat
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