37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

61°
H 75°
L 60°
SE
4mph
Low tide
11:58 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 02m at 11:58 am (3.4 ft)
Next high tide : 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 - Apr 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:089.02:077.58:230.38:172.05:526:30Waxing Crescent1Thu
2Fri1:369.02:507.28:570.28:502.45:516:31Waxing Crescent2Fri
3Sat2:069.03:376.99:350.29:262.75:496:32Waxing Crescent3Sat
4Sun2:418.84:326.610:180.310:083.05:486:33Waxing Crescent4Sun
5Mon3:228.65:376.511:080.311:043.25:466:34Waxing Crescent5Mon
6Tue4:128.36:476.612:060.45:456:35First Quarter6Tue
7Wed5:148.17:506.912:203.31:110.35:436:36First Quarter7Wed
8Thu6:278.08:407.31:433.12:150.35:426:37First Quarter8Thu
9Fri7:418.09:227.92:532.73:120.25:406:38Waxing Gibbous9Fri
10Sat8:508.310:008.63:502.04:030.25:396:38Waxing Gibbous10Sat
11Sun9:548.510:369.24:401.24:500.25:386:39Waxing Gibbous11Sun
12Mon10:548.811:149.95:290.45:350.55:366:40Waxing Gibbous12Mon
13Tue11:528.911:5210.46:16-0.36:190.85:356:41Full Moon13Tue
14Wed12:488.87:04-0.97:041.25:336:42Full Moon14Wed
15Thu12:3210.71:458.67:53-1.37:501.65:326:43Full Moon15Thu
16Fri1:1410.82:438.38:43-1.48:402.05:316:44Waning Gibbous16Fri
17Sat2:0010.63:438.09:35-1.39:342.45:296:45Waning Gibbous17Sat
18Sun2:4910.14:477.810:30-1.010:382.85:286:46Waning Gibbous18Sun
19Mon3:439.45:547.611:30-0.611:552.95:266:47Third Quarter19Mon
20Tue4:458.67:027.712:35-0.25:256:47Third Quarter20Tue
21Wed5:557.98:027.91:192.81:400.15:246:48Third Quarter21Wed
22Thu7:117.58:528.22:342.52:410.45:236:49Third Quarter22Thu
23Fri8:247.39:338.53:372.03:340.75:216:50Waning Crescent23Fri
24Sat9:297.310:078.74:291.54:190.95:206:51Waning Crescent24Sat
25Sun11:257.311:378.96:131.05:591.26:197:52Waning Crescent25Sun
26Mon12:147.46:510.66:351.56:187:53Waning Crescent26Mon
27Tue12:049.01:007.47:260.37:091.86:167:54New Moon27Tue
28Wed12:309.21:437.47:580.07:422.16:157:55New Moon28Wed
29Thu12:589.32:247.48:30-0.28:152.46:147:56New Moon29Thu
30Fri1:269.33:067.39:01-0.48:492.66:137:57New Moon30Fri
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