Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 5h 03m at 1:14 am (3.3 ft)
Next high tide (tomorrow) : 5:27 am (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Feb 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:368.82:548.99:522.210:090.07:105:32Waning Gibbous1Mon
2Tue4:139.23:567.910:531.910:520.87:095:33Waning Gibbous2Tue
3Wed4:549.55:137.012:021.57:085:34Third Quarter3Wed
4Thu5:409.86:516.41:181.07:085:35Third Quarter4Thu
5Fri6:3210.18:366.512:392.52:340.47:075:37Third Quarter5Fri
6Sat7:2910.310:007.01:503.13:41-0.17:065:38Waning Crescent6Sat
7Sun8:2810.611:007.63:063.44:40-0.67:055:39Waning Crescent7Sun
8Mon9:2610.811:498.14:153.45:32-1.07:045:40Waning Crescent8Mon
9Tue10:2110.95:153.36:18-1.17:035:41Waning Crescent9Tue
10Wed12:308.411:11 AM10.86:073.17:00-1.17:015:42New Moon10Wed
11Thu1:098.611:58 AM10.66:552.87:39-1.07:005:43New Moon11Thu
12Fri1:448.612:4210.17:402.58:15-0.76:595:44New Moon12Fri
13Sat2:168.61:259.58:242.38:49-0.36:585:45Waxing Crescent13Sat
14Sun2:478.62:088.89:072.29:230.26:575:46Waxing Crescent14Sun
15Mon3:168.62:528.09:522.09:560.96:565:47Waxing Crescent15Mon
16Tue3:448.63:427.210:411.910:301.66:555:48Waxing Crescent16Tue
17Wed4:158.64:456.411:361.811:072.36:535:49First Quarter17Wed
18Thu4:508.66:125.912:391.66:525:51First Quarter18Thu
19Fri5:328.68:075.91:481.46:515:52First Quarter19Fri
20Sat6:238.69:396.31:013.42:551.06:505:53First Quarter20Sat
21Sun7:218.810:326.92:233.73:520.66:485:54Waxing Gibbous21Sun
22Mon8:199.111:097.33:333.74:400.16:475:55Waxing Gibbous22Mon
23Tue9:149.511:417.64:263.65:22-0.36:465:56Waxing Gibbous23Tue
24Wed10:039.95:103.36:00-0.66:455:57Waxing Gibbous24Wed
25Thu12:117.910:50 AM10.25:513.06:36-0.96:435:58Full Moon25Thu
26Fri12:418.211:36 AM10.36:302.57:12-0.96:425:59Full Moon26Fri
27Sat1:118.512:2310.37:122.17:47-0.86:416:00Full Moon27Sat
28Sun1:418.81:119.97:561.68:23-0.46:396:01Full Moon28Sun
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 3:20 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 transitional phase. Tonight's moon is 66% 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 Third Quarter (66% 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