Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 7h 32m at 8:20 am (-0.7 ft)
Next high tide : 2:51 pm (7.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:50 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:548.14:129.610:582.611:490.47:046:50Waning Gibbous1Tue
2Wed6:007.74:599.111:573.17:046:49Third Quarter2Wed
3Thu7:127.55:558.612:490.71:093.37:056:47Third Quarter3Thu
4Fri8:257.56:598.21:550.92:273.47:066:46Third Quarter4Fri
5Sat9:257.78:088.03:001.03:373.27:076:44Third Quarter5Sat
6Sun10:128.09:128.13:591.04:332.87:086:43Waning Crescent6Sun
7Mon10:498.310:098.24:481.05:202.47:096:42Waning Crescent7Mon
8Tue11:198.510:598.35:291.06:012.07:106:40Waning Crescent8Tue
9Wed11:478.811:458.56:061.16:371.57:116:39Waning Crescent9Wed
10Thu12:149.16:391.27:111.17:126:37New Moon10Thu
11Fri12:298.512:429.47:101.47:440.87:126:36New Moon11Fri
12Sat1:138.51:109.67:421.68:170.47:136:34New Moon12Sat
13Sun1:578.41:419.88:151.98:540.17:146:33New Moon13Sun
14Mon2:438.32:149.98:502.29:33-0.17:156:32Waxing Crescent14Mon
15Tue3:328.12:519.99:292.510:18-0.27:166:30Waxing Crescent15Tue
16Wed4:267.93:339.810:132.911:08-0.27:176:29Waxing Crescent16Wed
17Thu5:277.74:239.511:063.27:186:27Waxing Crescent17Thu
18Fri6:347.65:239.212:05-0.112:153.37:196:26First Quarter18Fri
19Sat7:427.86:368.81:100.11:393.37:206:25First Quarter19Sat
20Sun8:438.27:548.62:180.23:032.97:216:23First Quarter20Sun
21Mon9:368.79:108.63:230.34:122.37:226:22Waxing Gibbous21Mon
22Tue10:219.310:198.84:210.45:101.57:236:21Waxing Gibbous22Tue
23Wed11:029.911:218.95:130.66:010.87:246:20Waxing Gibbous23Wed
24Thu11:4110.36:010.86:480.27:256:18Waxing Gibbous24Thu
25Fri12:199.012:1910.66:451.27:33-0.27:266:17Full Moon25Fri
26Sat1:148.912:5610.77:291.68:17-0.57:276:16Full Moon26Sat
27Sun1:078.812:3310.67:122.08:00-0.66:285:15Full Moon27Sun
28Mon1:588.61:1010.37:562.48:42-0.56:295:14Waning Gibbous28Mon
29Tue2:508.31:489.98:422.89:26-0.36:305:13Waning Gibbous29Tue
30Wed3:448.12:289.49:323.110:120.06:315:11Waning Gibbous30Wed
31Thu4:407.83:138.810:303.411:020.36:325:10Waning 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 11:35 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 100% 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 (100% 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