37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

63°
H 89°
L 62°
NNW
0mph
High tide
11:33 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, October 7, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 6:07 pm (1.7 ft)
Next high tide : in 4h 49m at 11:33 am (9.2 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 7:09 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Sep 1831

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:197.78:1210.43:070.22:573.15:446:45Waning Crescent1Thu
2Fri10:168.29:1310.64:07-0.14:022.95:456:43Waning Crescent2Fri
3Sat11:038.710:1010.85:00-0.44:592.65:466:42Waning Crescent3Sat
4Sun11:459.011:0210.75:47-0.55:502.25:476:40New Moon4Sun
5Mon12:249.26:30-0.46:381.95:486:39New Moon5Mon
6Tue1:019.47:10-0.27:241.75:486:37New Moon6Tue
7Wed12:4010.11:359.47:480.28:081.55:496:36New Moon7Wed
8Thu1:269.52:099.48:260.68:521.45:506:34Waxing Crescent8Thu
9Fri2:138.92:429.39:031.29:371.35:516:33Waxing Crescent9Fri
10Sat3:038.23:159.19:411.810:251.45:526:31Waxing Crescent10Sat
11Sun3:577.63:528.910:232.411:191.45:536:30Waxing Crescent11Sun
12Mon5:027.04:348.711:122.95:536:28First Quarter12Mon
13Tue6:226.85:258.612:201.412:163.35:546:27First Quarter13Tue
14Wed7:506.86:248.51:271.41:343.55:556:25First Quarter14Wed
15Thu8:587.17:268.62:321.22:453.55:566:24First Quarter15Thu
16Fri9:467.58:248.93:280.93:413.35:576:22Waxing Gibbous16Fri
17Sat10:237.89:179.24:150.74:273.05:586:20Waxing Gibbous17Sat
18Sun10:558.210:059.44:560.45:062.75:596:19Waxing Gibbous18Sun
19Mon11:258.510:519.75:320.35:432.35:596:17Waxing Gibbous19Mon
20Tue11:558.811:369.76:080.26:201.86:006:16Full Moon20Tue
21Wed12:269.26:420.36:591.46:016:14Full Moon21Wed
22Thu12:229.712:589.57:180.57:401.06:026:13Full Moon22Thu
23Fri1:119.51:329.87:550.88:240.66:036:11Waning Gibbous23Fri
24Sat2:029.12:0810.18:351.39:130.46:046:10Waning Gibbous24Sat
25Sun2:598.62:4910.19:181.810:070.26:046:08Waning Gibbous25Sun
26Mon4:048.13:3610.110:082.411:090.26:056:07Waning Gibbous26Mon
27Tue5:187.74:329.911:082.96:066:05Third Quarter27Tue
28Wed6:407.65:379.612:190.212:253.26:076:04Third Quarter28Wed
29Thu7:587.96:499.51:340.21:503.26:086:02Third Quarter29Thu
30Fri9:018.38:019.52:440.13:052.96:096:01Waning Crescent30Fri
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 spring phase. Tonight's moon is 9% 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 maximum.

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 (9% illuminated). This places Upper Guadalupe Slough, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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