37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

61°
H -°
L 59°
NNW
1mph
High tide
8:31 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 1:10 pm (3.8 ft)
Next high tide : in 5h 38m at 8:31 am (6.7 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:41 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Nov 1896

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:209.29:248.13:220.64:161.46:335:09Waning Crescent1Sun
2Mon9:5210.010:318.34:080.95:040.46:345:08Waning Crescent2Mon
3Tue10:2610.711:348.44:521.45:50-0.56:355:07New Moon3Tue
4Wed11:0211.25:352.06:37-1.26:375:06New Moon4Wed
5Thu12:358.511:41 AM11.66:202.57:25-1.66:385:05New Moon5Thu
6Fri1:348.512:2211.77:063.08:14-1.76:395:04New Moon6Fri
7Sat2:348.41:0811.47:563.39:05-1.66:405:03Waxing Crescent7Sat
8Sun3:348.21:5710.88:513.69:59-1.26:415:02Waxing Crescent8Sun
9Mon4:358.12:5110.19:563.810:57-0.86:425:01Waxing Crescent9Mon
10Tue5:388.03:529.211:153.811:57-0.36:435:01First Quarter10Tue
11Wed6:388.15:018.312:423.56:445:00First Quarter11Wed
12Thu7:318.36:187.512:590.22:013.16:454:59First Quarter12Thu
13Fri8:158.67:377.11:560.63:072.46:464:58First Quarter13Fri
14Sat8:528.98:526.92:471.14:001.86:474:57Waxing Gibbous14Sat
15Sun9:229.29:587.03:321.54:451.26:484:57Waxing Gibbous15Sun
16Mon9:499.410:567.14:132.05:240.66:494:56Waxing Gibbous16Mon
17Tue10:149.711:487.34:502.45:590.26:504:55Waxing Gibbous17Tue
18Wed10:399.95:262.96:31-0.16:514:55Full Moon18Wed
19Thu12:357.411:07 AM10.06:003.27:03-0.46:524:54Full Moon19Thu
20Fri1:207.511:36 AM10.16:353.57:35-0.56:534:54Full Moon20Fri
21Sat2:037.612:0910.17:103.78:09-0.66:544:53Full Moon21Sat
22Sun2:467.512:4510.07:463.98:47-0.76:554:53Waning Gibbous22Sun
23Mon3:307.51:239.78:264.09:27-0.66:564:52Waning Gibbous23Mon
24Tue4:167.52:079.49:144.010:12-0.56:574:52Waning Gibbous24Tue
25Wed5:037.52:568.910:134.011:00-0.36:584:52Waning Gibbous25Wed
26Thu5:497.73:568.311:273.711:510.06:594:51Third Quarter26Thu
27Fri6:328.15:097.712:493.37:004:51Third Quarter27Fri
28Sat7:128.66:357.112:450.42:032.57:014:51Third Quarter28Sat
29Sun7:509.38:056.91:390.93:061.67:024:50Third Quarter29Sun
30Mon8:2810.19:287.12:331.44:010.57:034:50Waning Crescent30Mon
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 45% 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 (45% 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