Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, June 5, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 17m at 11:42 am (-0.4 ft)
Next high tide : 6:23 pm (7.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:4710.65:007.810:38-1.610:333.16:117:58Waning Gibbous1Tue
2Wed3:3710.06:017.711:32-1.211:423.26:107:59Waning Gibbous2Wed
3Thu4:339.27:037.712:30-0.76:097:59Third Quarter3Thu
4Fri5:358.38:027.81:023.21:30-0.26:088:00Third Quarter4Fri
5Sat6:467.58:548.02:242.92:300.26:078:01Third Quarter5Sat
6Sun8:036.99:378.33:362.43:250.66:068:02Third Quarter6Sun
7Mon9:206.710:128.64:361.84:151.06:058:03Waning Crescent7Mon
8Tue10:296.610:438.85:261.34:591.46:048:04Waning Crescent8Tue
9Wed11:296.711:109.16:080.75:391.86:038:05Waning Crescent9Wed
10Thu12:226.96:460.36:162.26:028:06Waning Crescent10Thu
11Fri1:107.07:20-0.16:512.56:018:07New Moon11Fri
12Sat12:059.51:557.17:52-0.47:262.86:008:07New Moon12Sat
13Sun12:349.62:377.28:24-0.68:003.15:598:08New Moon13Sun
14Mon1:059.73:207.28:57-0.88:363.25:598:09New Moon14Mon
15Tue1:409.64:027.29:32-0.99:153.45:588:10Waxing Crescent15Tue
16Wed2:169.54:477.210:11-0.99:583.55:578:11Waxing Crescent16Wed
17Thu2:579.35:337.210:53-0.810:503.55:568:12Waxing Crescent17Thu
18Fri3:428.96:207.311:38-0.711:543.45:558:13Waxing Crescent18Fri
19Sat4:368.47:077.612:28-0.55:558:13First Quarter19Sat
20Sun5:407.77:528.11:093.11:21-0.15:548:14First Quarter20Sun
21Mon6:587.28:348.62:272.62:160.35:538:15First Quarter21Mon
22Tue8:246.89:159.33:361.83:120.85:538:16First Quarter22Tue
23Wed9:486.89:5610.04:350.84:061.35:528:17Waxing Gibbous23Wed
24Thu11:057.010:3710.65:29-0.14:581.85:528:17Waxing Gibbous24Thu
25Fri12:127.46:19-0.95:502.35:518:18Waxing Gibbous25Fri
26Sat1:137.77:08-1.56:422.65:508:19Full Moon26Sat
27Sun12:0411.42:107.97:56-1.97:342.95:508:20Full Moon27Sun
28Mon12:5011.33:038.18:44-2.08:273.05:508:20Full Moon28Mon
29Tue1:3811.13:548.19:32-1.99:233.15:498:21Waning Gibbous29Tue
30Wed2:2610.54:448.110:19-1.610:223.25:498:22Waning Gibbous30Wed
31Thu3:169.85:338.111:07-1.211:273.15:488:22Waning Gibbous31Thu
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 3:02 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 75% 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 Waning Gibbous (75% 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