37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

73°
H 73°
L 57°
NNW
14mph
High tide
6:41 pm

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 (tomorrow) : 3:09 am (0.2 ft)
Next high tide : in 3h 16m at 6:41 pm (10.2 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 - Mar 1892

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:169.62:199.28:560.89:100.36:386:02Waxing Crescent1Tue
2Wed2:519.93:218.39:520.59:511.26:366:03Waxing Crescent2Wed
3Thu3:3010.14:337.310:530.310:362.16:356:04Waxing Crescent3Thu
4Fri4:1410.16:016.712:010.26:336:05First Quarter4Fri
5Sat5:059.97:446.71:180.16:326:06First Quarter5Sat
6Sun6:089.69:117.112:503.42:360.06:306:07First Quarter6Sun
7Mon7:199.410:117.62:213.63:45-0.26:296:08Waxing Gibbous7Mon
8Tue8:289.310:578.03:403.54:42-0.46:286:09Waxing Gibbous8Tue
9Wed9:309.411:358.24:403.15:29-0.46:266:10Waxing Gibbous9Wed
10Thu10:229.45:302.76:08-0.46:256:11Waxing Gibbous10Thu
11Fri12:078.411:09 AM9.36:122.36:42-0.36:236:12Full Moon11Fri
12Sat12:368.411:51 AM9.16:502.07:120.06:226:13Full Moon12Sat
13Sun1:018.412:318.77:261.77:400.36:206:14Full Moon13Sun
14Mon1:238.51:108.38:001.48:060.86:196:15Full Moon14Mon
15Tue1:458.61:507.98:341.28:321.36:176:15Waning Gibbous15Tue
16Wed2:068.72:337.49:091.08:591.86:166:16Waning Gibbous16Wed
17Thu2:298.83:216.89:470.89:272.46:146:17Waning Gibbous17Thu
18Fri2:568.84:206.410:300.89:582.96:136:18Waning Gibbous18Fri
19Sat3:298.75:416.011:220.710:373.46:116:19Third Quarter19Sat
20Sun4:118.57:296.112:250.76:106:20Third Quarter20Sun
21Mon5:088.48:586.41:370.56:086:21Third Quarter21Mon
22Tue6:198.49:456.91:274.02:470.26:076:22Third Quarter22Tue
23Wed7:338.610:207.32:543.83:46-0.26:056:23Waning Crescent23Wed
24Thu8:419.010:507.83:543.34:35-0.66:046:24Waning Crescent24Thu
25Fri9:419.411:208.24:432.75:19-0.86:026:25Waning Crescent25Fri
26Sat10:389.711:508.85:301.96:00-0.76:016:25Waning Crescent26Sat
27Sun11:339.76:161.26:39-0.55:596:26New Moon27Sun
28Mon12:229.412:299.57:030.47:190.05:586:27New Moon28Mon
29Tue12:549.91:269.17:51-0.27:580.75:566:28New Moon29Tue
30Wed1:2910.32:258.58:41-0.68:391.55:556:29Waxing Crescent30Wed
31Thu2:0610.53:307.99:34-0.89:242.25:536:30Waxing Crescent31Thu
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