37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

61°
H -°
L 58°
NNW
6mph
Low tide
3:09 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 48m at 3:09 am (0.2 ft)
Next high tide : 9:56 am (7.1 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 - Feb 1890

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:539.84:573.56:02-0.27:115:32Waxing Gibbous1Sat
2Sun12:177.810:34 AM9.95:423.46:37-0.47:105:33Waxing Gibbous2Sun
3Mon12:517.911:13 AM10.06:223.37:09-0.57:095:34Full Moon3Mon
4Tue1:218.011:50 AM9.96:583.27:39-0.57:085:35Full Moon4Tue
5Wed1:498.012:279.87:323.08:09-0.47:075:37Full Moon5Wed
6Thu2:158.11:039.58:072.88:37-0.37:065:38Full Moon6Thu
7Fri2:428.21:419.18:432.69:070.07:055:39Waning Gibbous7Fri
8Sat3:108.32:218.59:242.49:390.47:045:40Waning Gibbous8Sat
9Sun3:408.53:087.810:112.210:130.97:035:41Waning Gibbous9Sun
10Mon4:138.84:077.111:051.910:511.67:025:42Waning Gibbous10Mon
11Tue4:509.05:266.412:091.67:015:43Third Quarter11Tue
12Wed5:349.37:106.11:201.17:005:44Third Quarter12Wed
13Thu6:279.68:526.412:382.92:330.56:595:45Third Quarter13Thu
14Fri7:279.910:077.01:533.33:38-0.16:585:46Waning Crescent14Fri
15Sat8:2910.411:017.63:103.54:36-0.76:565:47Waning Crescent15Sat
16Sun9:2910.911:458.14:173.35:28-1.26:555:48Waning Crescent16Sun
17Mon10:2611.25:153.06:17-1.56:545:49New Moon17Mon
18Tue12:268.511:21 AM11.36:092.67:02-1.56:535:51New Moon18Tue
19Wed1:058.912:1311.17:012.27:45-1.36:525:52New Moon19Wed
20Thu1:429.11:0510.67:521.88:27-0.96:505:53New Moon20Thu
21Fri2:199.31:579.88:441.59:07-0.36:495:54Waxing Crescent21Fri
22Sat2:569.52:528.99:381.39:480.46:485:55Waxing Crescent22Sat
23Sun3:349.53:517.810:341.110:301.36:465:56Waxing Crescent23Sun
24Mon4:139.45:026.911:361.111:182.16:455:57First Quarter24Mon
25Tue4:559.26:316.412:431.06:445:58First Quarter25Tue
26Wed5:439.08:136.512:162.81:550.96:425:59First Quarter26Wed
27Thu6:388.89:346.91:313.33:030.76:416:00First Quarter27Thu
28Fri7:388.710:297.32:493.54:020.46:406:01Waxing Gibbous28Fri
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