37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

55°
H 76°
L 56°
ESE
3mph
High tide
9:56 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 2:42 pm (4.0 ft)
Next high tide : in 3h 07m at 9:56 am (7.1 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Apr 1888

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:339.95:217.411:11-0.511:092.75:526:31Third Quarter1Sun
2Mon4:279.56:447.312:20-0.35:506:32Third Quarter2Mon
3Tue5:319.08:037.512:293.11:33-0.25:496:33Third Quarter3Tue
4Wed6:448.69:067.91:583.12:43-0.15:476:33Third Quarter4Wed
5Thu7:588.49:568.23:142.83:44-0.15:466:34Waning Crescent5Thu
6Fri9:048.410:378.54:152.44:350.05:446:35Waning Crescent6Fri
7Sat10:028.411:118.75:061.95:180.15:436:36Waning Crescent7Sat
8Sun10:538.411:418.85:491.55:550.35:416:37Waning Crescent8Sun
9Mon11:398.26:271.16:290.65:406:38New Moon9Mon
10Tue12:088.812:228.17:020.87:011.05:386:39New Moon10Tue
11Wed12:338.81:047.87:350.57:321.45:376:40New Moon11Wed
12Thu12:568.91:457.68:070.38:021.85:366:41New Moon12Thu
13Fri1:218.92:287.38:400.28:342.25:346:41Waxing Crescent13Fri
14Sat1:488.93:157.19:150.19:072.65:336:42Waxing Crescent14Sat
15Sun2:188.74:076.89:540.19:463.05:316:43Waxing Crescent15Sun
16Mon2:538.55:096.610:390.210:343.35:306:44Waxing Crescent16Mon
17Tue3:368.36:196.611:310.211:413.55:296:45First Quarter17Tue
18Wed4:298.07:296.812:330.35:276:46First Quarter18Wed
19Thu5:367.88:247.21:073.51:380.25:266:47First Quarter19Thu
20Fri6:507.79:087.62:243.22:390.15:256:48First Quarter20Fri
21Sat8:037.99:458.23:242.73:340.05:236:49Waxing Gibbous21Sat
22Sun9:108.210:208.74:142.04:220.05:226:50Waxing Gibbous22Sun
23Mon10:128.510:559.35:011.25:070.15:216:50Waxing Gibbous23Mon
24Tue11:118.711:309.95:460.45:510.45:206:51Full Moon24Tue
25Wed12:088.86:33-0.46:350.85:186:52Full Moon25Wed
26Thu12:0710.41:068.77:20-1.07:191.35:176:53Full Moon26Thu
27Fri12:4610.62:048.58:09-1.48:061.85:166:54Full Moon27Fri
28Sat1:2810.73:058.28:59-1.58:562.35:156:55Waning Gibbous28Sat
29Sun2:1210.44:088.09:53-1.49:532.85:136:56Waning Gibbous29Sun
30Mon3:029.95:167.810:50-1.111:023.15:126:57Waning Gibbous30Mon
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 34% 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 Third Quarter (34% 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