Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 1h 39m at 7:46 am (-0.6 ft)
Next high tide : 2:16 pm (7.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:557.67:388.61:152.71:170.15:488:23Third Quarter1Thu
2Fri7:147.08:259.22:312.22:140.55:488:24Third Quarter2Fri
3Sat8:406.89:119.83:401.53:121.05:478:24Third Quarter3Sat
4Sun10:016.99:5710.44:400.64:101.45:478:25Waning Crescent4Sun
5Mon11:147.210:4210.95:34-0.25:051.85:478:25Waning Crescent5Mon
6Tue12:187.66:25-0.85:592.25:478:26Waning Crescent6Tue
7Wed1:157.97:13-1.36:512.45:478:27New Moon7Wed
8Thu12:1311.32:088.28:00-1.67:442.65:468:27New Moon8Thu
9Fri12:5911.22:598.48:46-1.68:372.75:468:28New Moon9Fri
10Sat1:4510.83:478.59:31-1.59:312.85:468:28Waxing Crescent10Sat
11Sun2:3110.24:348.510:15-1.210:272.95:468:29Waxing Crescent11Sun
12Mon3:199.55:218.511:00-0.811:282.95:468:29Waxing Crescent12Mon
13Tue4:088.66:078.511:45-0.35:468:29Waxing Crescent13Tue
14Wed5:027.76:528.512:342.812:310.35:468:30First Quarter14Wed
15Thu6:036.97:368.61:442.61:200.85:468:30First Quarter15Thu
16Fri7:176.28:198.82:512.22:111.45:468:31First Quarter16Fri
17Sat8:405.98:599.03:521.73:041.95:468:31First Quarter17Sat
18Sun10:016.09:379.34:451.23:562.35:468:31Waxing Gibbous18Sun
19Mon11:096.310:149.65:310.74:452.65:478:31Waxing Gibbous19Mon
20Tue12:046.66:110.35:302.95:478:32Waxing Gibbous20Tue
21Wed12:507.06:48-0.16:133.05:478:32Waxing Gibbous21Wed
22Thu1:327.37:23-0.46:543.15:478:32Full Moon22Thu
23Fri12:0610.22:117.67:58-0.77:343.25:488:32Full Moon23Fri
24Sat12:4510.32:497.88:33-0.98:163.15:488:32Full Moon24Sat
25Sun1:2510.33:268.09:09-1.09:003.15:488:33Full Moon25Sun
26Mon2:0710.14:058.39:47-1.09:493.05:488:33Waning Gibbous26Mon
27Tue2:529.74:448.510:27-0.910:432.85:498:33Waning Gibbous27Tue
28Wed3:429.15:268.811:10-0.511:452.65:498:33Waning Gibbous28Wed
29Thu4:398.46:099.211:560.05:508:33Third Quarter29Thu
30Fri5:477.56:569.612:552.212:460.65:508:33Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

Show All
What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 11:01 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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