Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 6h 13m at 3:26 am (1.2 ft)
Next high tide : 9:09 am (6.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:119.05:477.411:09-0.811:143.55:488:23Waning Gibbous1Thu
2Fri3:588.56:277.711:52-0.65:488:23Waning Gibbous2Fri
3Sat4:547.97:088.112:223.312:39-0.25:478:24Third Quarter3Sat
4Sun6:047.27:478.61:372.81:280.35:478:25Third Quarter4Sun
5Mon7:276.68:279.22:492.12:200.95:478:25Third Quarter5Mon
6Tue8:586.49:089.93:531.33:141.55:478:26Waning Crescent6Tue
7Wed10:256.59:5010.64:500.34:092.15:468:26Waning Crescent7Wed
8Thu11:406.910:3411.15:43-0.65:032.65:468:27Waning Crescent8Thu
9Fri12:447.46:33-1.35:582.95:468:28Waning Crescent9Fri
10Sat1:427.87:23-1.86:533.15:468:28New Moon10Sat
11Sun12:0911.72:348.18:12-2.07:483.25:468:28New Moon11Sun
12Mon12:5911.63:248.29:01-2.08:453.25:468:29New Moon12Mon
13Tue1:5011.24:128.39:48-1.89:433.25:468:29Waxing Crescent13Tue
14Wed2:4110.54:588.410:35-1.510:453.15:468:30Waxing Crescent14Wed
15Thu3:349.65:448.511:22-0.911:532.95:468:30Waxing Crescent15Thu
16Fri4:288.66:288.612:08-0.35:468:30First Quarter16Fri
17Sat5:297.57:128.81:042.612:540.45:468:31First Quarter17Sat
18Sun6:416.57:539.02:162.21:421.15:468:31First Quarter18Sun
19Mon8:075.98:329.23:231.72:321.85:468:31First Quarter19Mon
20Tue9:405.89:099.44:221.23:242.45:478:32Waxing Gibbous20Tue
21Wed11:026.19:469.65:130.74:162.95:478:32Waxing Gibbous21Wed
22Thu12:056.55:570.25:063.35:478:32Waxing Gibbous22Thu
23Fri12:556.96:36-0.15:523.55:478:32Waxing Gibbous23Fri
24Sat1:387.27:13-0.46:353.75:488:32Waxing Gibbous24Sat
25Sun2:157.47:48-0.67:163.75:488:32Full Moon25Sun
26Mon12:1710.22:497.58:22-0.87:553.75:488:32Full Moon26Mon
27Tue12:5610.23:227.68:56-1.08:353.65:498:33Full Moon27Tue
28Wed1:3510.13:557.89:30-1.09:173.55:498:33Waning Gibbous28Wed
29Thu2:169.84:288.010:05-0.910:043.35:498:33Waning Gibbous29Thu
30Fri2:599.45:018.310:42-0.710:583.05:508:32Waning Gibbous30Fri
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 6:17 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 neap phase. Tonight's moon is 53% 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 (53% 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