37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

66°
H 90°
L 64°
N
0mph
High tide
10:18 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, October 5, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:16 pm (3.1 ft)
Next high tide : in 1h 38m at 10:18 am (8.2 ft)
Sunset today : 6:45 pm
Sunrise tomorrow : 7:07 am
Moon phase : Waning Crescent (26% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Feb 1835

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:328.52:388.59:492.610:010.37:185:39Waxing Crescent1Sun
2Mon4:038.53:267.610:402.510:361.07:185:40Waxing Crescent2Mon
3Tue4:358.54:226.711:372.311:141.77:175:41First Quarter3Tue
4Wed5:098.65:386.012:422.07:165:42First Quarter4Wed
5Thu5:478.77:225.71:511.77:155:43First Quarter5Thu
6Fri6:328.89:116.012:523.02:551.37:145:44First Quarter6Fri
7Sat7:229.010:226.62:013.53:510.87:135:45First Quarter7Sat
8Sun8:149.311:087.13:113.74:380.37:125:46Waxing Gibbous8Sun
9Mon9:059.711:457.54:103.75:20-0.27:115:47Waxing Gibbous9Mon
10Tue9:5310.14:583.65:59-0.67:105:48Waxing Gibbous10Tue
11Wed12:187.810:39 AM10.45:413.46:36-0.97:095:50Full Moon11Wed
12Thu12:508.011:25 AM10.66:213.17:13-1.17:085:51Full Moon12Thu
13Fri1:218.212:1010.77:032.77:49-1.17:075:52Full Moon13Fri
14Sat1:538.512:5610.47:472.48:26-0.97:055:53Full Moon14Sat
15Sun2:268.81:459.98:352.09:03-0.57:045:54Waning Gibbous15Sun
16Mon2:599.22:389.19:261.69:420.27:035:55Waning Gibbous16Mon
17Tue3:369.53:398.110:241.210:241.07:025:56Waning Gibbous17Tue
18Wed4:169.74:547.111:291.011:111.87:015:57Third Quarter18Wed
19Thu5:019.96:286.512:420.76:595:58Third Quarter19Thu
20Fri5:549.98:136.612:082.62:000.36:585:59Third Quarter20Fri
21Sat6:5610.09:397.11:233.23:13-0.16:576:00Third Quarter21Sat
22Sun8:0110.110:397.62:473.54:16-0.46:566:01Waning Crescent22Sun
23Mon9:0410.211:268.14:013.45:10-0.76:546:02Waning Crescent23Mon
24Tue10:0110.25:013.25:56-0.86:536:03Waning Crescent24Tue
25Wed12:058.410:52 AM10.25:522.96:37-0.86:526:04New Moon25Wed
26Thu12:418.511:39 AM10.06:372.57:14-0.76:506:05New Moon26Thu
27Fri1:138.612:229.77:192.27:47-0.46:496:06New Moon27Fri
28Sat1:428.61:039.27:592.08:190.06:486:07New Moon28Sat
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 transitional phase. Tonight's moon is 26% 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 shifting between spring and neap.

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 Waning Crescent (26% illuminated). This places Upper Guadalupe Slough, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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