37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

60°
H 64°
L 56°
SSE
1mph
High tide
11:01 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, October 22, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 5:54 pm (1.7 ft)
Next high tide : in 53m at 11:01 am (8.7 ft)
Sunset today : 6:21 pm
Sunrise tomorrow : 7:23 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 1806

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:517.77:30-1.17:103.24:557:29Full Moon1Sun
2Mon12:1210.12:347.78:08-1.17:553.44:547:30Full Moon2Mon
3Tue12:509.73:157.68:45-0.98:403.44:547:30Waning Gibbous3Tue
4Wed1:289.33:547.59:23-0.79:273.44:547:31Waning Gibbous4Wed
5Thu2:088.84:327.510:01-0.510:203.44:547:32Waning Gibbous5Thu
6Fri2:508.25:107.610:40-0.111:223.24:537:32Waning Gibbous6Fri
7Sat3:397.55:487.811:210.34:537:33Third Quarter7Sat
8Sun4:376.86:258.112:303.012:040.74:537:33Third Quarter8Sun
9Mon5:486.27:028.51:382.512:501.24:537:34Third Quarter9Mon
10Tue7:125.87:398.92:372.01:401.74:537:34Third Quarter10Tue
11Wed8:385.98:179.43:291.32:312.24:537:35Waning Crescent11Wed
12Thu9:546.28:569.94:140.63:222.64:527:35Waning Crescent12Thu
13Fri10:576.79:3710.44:56-0.14:122.94:527:36Waning Crescent13Fri
14Sat11:527.110:2110.95:38-0.75:013.14:527:36Waning Crescent14Sat
15Sun12:427.56:21-1.35:513.24:527:37New Moon15Sun
16Mon1:287.87:06-1.76:423.24:537:37New Moon16Mon
17Tue2:138.17:51-1.97:353.14:537:37New Moon17Tue
18Wed12:4511.22:588.48:37-1.98:313.04:537:38Waxing Crescent18Wed
19Thu1:3710.83:428.69:23-1.69:332.84:537:38Waxing Crescent19Thu
20Fri2:3310.04:278.910:11-1.110:422.54:537:38Waxing Crescent20Fri
21Sat3:339.05:139.310:59-0.511:572.14:537:38First Quarter21Sat
22Sun4:427.96:019.611:490.34:537:39First Quarter22Sun
23Mon6:026.96:4810.01:131.612:431.14:547:39First Quarter23Mon
24Tue7:336.47:3610.32:261.01:401.84:547:39First Quarter24Tue
25Wed9:036.48:2410.53:300.42:402.44:547:39Waxing Gibbous25Wed
26Thu10:196.89:1010.64:26-0.13:392.94:557:39Waxing Gibbous26Thu
27Fri11:217.29:5310.65:15-0.54:343.24:557:39Waxing Gibbous27Fri
28Sat12:127.55:59-0.75:253.44:557:39Waxing Gibbous28Sat
29Sun12:567.76:38-0.86:123.44:567:39Full Moon29Sun
30Mon1:367.87:15-0.86:563.44:567:39Full Moon30Mon
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 86% 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 Waxing Gibbous (86% 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