Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 11m at 4:04 am (1.2 ft)
Next high tide : 9:11 am (6.0 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 - May 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:237.98:476.912:503.91:44-0.16:127:57Third Quarter1Fri
2Sat6:357.69:257.32:233.72:44-0.16:117:58Third Quarter2Sat
3Sun7:547.49:587.93:353.13:380.06:107:59Third Quarter3Sun
4Mon9:107.410:288.54:312.34:270.26:098:00Waning Crescent4Mon
5Tue10:227.510:589.25:201.45:110.56:088:01Waning Crescent5Tue
6Wed11:297.711:309.96:060.45:541.06:078:02Waning Crescent6Wed
7Thu12:337.96:52-0.56:371.66:058:03New Moon7Thu
8Fri12:0410.61:358.07:38-1.37:212.16:048:04New Moon8Fri
9Sat12:4211.12:368.08:26-1.88:072.66:048:04New Moon9Sat
10Sun1:2311.23:367.99:16-2.08:563.16:038:05Waxing Crescent10Sun
11Mon2:0711.14:387.810:08-2.09:513.46:028:06Waxing Crescent11Mon
12Tue2:5710.75:407.711:03-1.710:563.66:018:07Waxing Crescent12Tue
13Wed3:5110.06:447.712:01-1.36:008:08Waxing Crescent13Wed
14Thu4:539.17:457.912:143.61:03-0.85:598:09First Quarter14Thu
15Fri6:038.28:398.11:423.32:06-0.35:588:10First Quarter15Fri
16Sat7:207.49:248.43:032.83:040.15:578:11First Quarter16Sat
17Sun8:406.910:028.84:102.23:560.65:578:11First Quarter17Sun
18Mon9:566.610:359.05:071.54:411.15:568:12Waxing Gibbous18Mon
19Tue11:046.611:039.35:540.95:221.65:558:13Waxing Gibbous19Tue
20Wed12:046.76:340.45:592.15:548:14Waxing Gibbous20Wed
21Thu12:586.87:10-0.16:352.65:548:15Waxing Gibbous21Thu
22Fri1:487.07:44-0.47:093.05:538:16Full Moon22Fri
23Sat12:209.72:347.18:16-0.67:443.35:528:16Full Moon23Sat
24Sun12:489.73:187.18:49-0.88:193.65:528:17Full Moon24Sun
25Mon1:209.64:017.19:23-0.88:563.85:518:18Full Moon25Mon
26Tue1:549.54:447.110:00-0.89:353.95:518:19Waning Gibbous26Tue
27Wed2:329.35:297.110:40-0.810:213.95:508:19Waning Gibbous27Wed
28Thu3:139.06:157.111:23-0.711:183.95:508:20Waning Gibbous28Thu
29Fri4:018.57:007.312:10-0.65:498:21Waning Gibbous29Fri
30Sat4:578.07:417.712:313.71:00-0.35:498:21Third Quarter30Sat
31Sun6:057.48:198.11:513.31:510.05:488:22Third Quarter31Sun
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 6:37 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 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