Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 3h 12m at 2:17 pm (1.4 ft)
Next high tide : 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 - Jul 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:507.37:20-0.66:393.85:518:33Full Moon1Tue
2Wed2:307.57:57-1.07:223.95:518:32Full Moon2Wed
3Thu12:2910.73:087.78:36-1.28:063.85:528:32Full Moon3Thu
4Fri1:1310.83:467.99:16-1.48:533.75:528:32Full Moon4Fri
5Sat1:5810.64:248.19:57-1.49:443.55:538:32Waning Gibbous5Sat
6Sun2:4610.35:028.310:39-1.210:423.25:538:32Waning Gibbous6Sun
7Mon3:389.65:408.711:21-0.811:482.95:548:31Waning Gibbous7Mon
8Tue4:368.76:209.112:05-0.25:548:31Third Quarter8Tue
9Wed5:467.67:019.61:022.412:520.65:558:31Third Quarter9Wed
10Thu7:126.87:4510.12:181.71:431.45:568:30Third Quarter10Thu
11Fri8:516.48:3110.63:301.02:392.25:568:30Third Quarter11Fri
12Sat10:256.69:1911.04:350.23:392.95:578:30Waning Crescent12Sat
13Sun11:427.110:0911.25:32-0.44:423.35:588:29Waning Crescent13Sun
14Mon12:437.66:24-0.95:423.65:588:29Waning Crescent14Mon
15Tue1:348.07:12-1.16:393.65:598:28New Moon15Tue
16Wed2:198.27:57-1.27:313.66:008:28New Moon16Wed
17Thu12:3411.13:008.38:39-1.28:213.56:008:27New Moon17Thu
18Fri1:1910.73:388.39:18-1.09:093.46:018:27New Moon18Fri
19Sat2:0210.24:138.39:55-0.79:573.26:028:26Waxing Crescent19Sat
20Sun2:449.64:468.310:31-0.410:463.16:038:25Waxing Crescent20Sun
21Mon3:278.85:178.411:050.111:392.96:038:25Waxing Crescent21Mon
22Tue4:137.95:488.511:390.76:048:24Waxing Crescent22Tue
23Wed5:067.16:208.712:372.712:141.46:058:23First Quarter23Wed
24Thu6:146.36:558.91:412.312:522.16:068:22First Quarter24Thu
25Fri7:485.87:349.12:471.91:382.86:078:22First Quarter25Fri
26Sat9:405.98:179.43:481.52:353.46:078:21First Quarter26Sat
27Sun11:096.39:049.74:420.93:413.76:088:20Waxing Gibbous27Sun
28Mon12:056.95:300.44:423.96:098:19Waxing Gibbous28Mon
29Tue12:477.36:14-0.15:354.06:108:18Waxing Gibbous29Tue
30Wed1:247.66:55-0.56:223.86:118:17Waxing Gibbous30Wed
31Thu1:587.97:35-0.97:083.66:118:16Full Moon31Thu
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 5:19 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 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