37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

76°
H 77°
L 59°
NW
16mph
High tide
5:37 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 1:50 am (0.4 ft)
Next high tide : in 3h 58m at 5:37 pm (10.2 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 6:40 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jul 1900

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:358.54:248.410:080.110:512.84:507:32Waxing Crescent1Sun
2Mon3:217.74:598.510:450.611:522.64:507:32Waxing Crescent2Mon
3Tue4:156.95:358.611:231.24:517:32First Quarter3Tue
4Wed5:226.26:138.912:562.312:061.84:517:32First Quarter4Wed
5Thu6:485.76:559.12:011.912:552.44:527:32First Quarter5Thu
6Fri8:235.77:389.42:591.41:512.84:527:32First Quarter6Fri
7Sat9:446.18:239.83:500.92:503.24:537:31Waxing Gibbous7Sat
8Sun10:446.69:0710.24:350.43:453.44:547:31Waxing Gibbous8Sun
9Mon11:317.09:5210.55:16-0.24:353.44:547:31Waxing Gibbous9Mon
10Tue12:127.45:56-0.65:233.44:557:30Full Moon10Tue
11Wed12:517.86:35-1.06:103.24:557:30Full Moon11Wed
12Thu1:288.17:14-1.26:583.04:567:30Full Moon12Thu
13Fri12:1011.02:058.57:54-1.37:482.84:577:29Full Moon13Fri
14Sat12:5910.72:428.98:34-1.28:412.54:577:29Waning Gibbous14Sat
15Sun1:5010.23:209.39:15-0.89:392.24:587:28Waning Gibbous15Sun
16Mon2:459.34:019.79:58-0.210:421.94:597:28Waning Gibbous16Mon
17Tue3:478.44:4410.010:430.511:531.55:007:27Third Quarter17Tue
18Wed5:007.45:3210.311:321.35:007:27Third Quarter18Wed
19Thu6:266.76:2310.51:081.112:292.05:017:26Third Quarter19Thu
20Fri8:016.67:1910.72:220.61:342.65:027:26Third Quarter20Fri
21Sat9:266.98:1510.83:290.22:443.05:037:25Waning Crescent21Sat
22Sun10:327.49:0910.94:27-0.23:493.25:037:24Waning Crescent22Sun
23Mon11:257.810:0110.95:18-0.54:483.25:047:23Waning Crescent23Mon
24Tue12:108.26:02-0.75:413.15:057:23New Moon24Tue
25Wed12:508.46:43-0.76:293.05:067:22New Moon25Wed
26Thu1:268.57:19-0.67:132.95:067:21New Moon26Thu
27Fri12:1410.21:598.57:53-0.47:562.75:077:20New Moon27Fri
28Sat12:549.72:298.68:25-0.18:382.65:087:20Waxing Crescent28Sat
29Sun1:349.12:578.78:570.39:212.55:097:19Waxing Crescent29Sun
30Mon2:148.53:258.89:270.710:062.35:107:18Waxing Crescent30Mon
31Tue2:587.83:568.99:591.210:562.25:117:17Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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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 56% 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 Third Quarter (56% 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