37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

54°
H 72°
L 56°
NNW
0mph
High tide
1:14 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 8:07 pm (0.8 ft)
Next high tide : in 5h 00m at 1:14 pm (9.5 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 6:59 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 1850

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:587.66:287.611:500.24:557:29Third Quarter1Sat
2Sun4:587.07:117.91:003.312:410.54:547:30Third Quarter2Sun
3Mon6:106.67:518.32:072.91:330.84:547:31Third Quarter3Mon
4Tue7:286.48:288.73:032.32:241.14:547:31Third Quarter4Tue
5Wed8:436.49:039.33:501.63:131.44:547:32Waning Crescent5Wed
6Thu9:516.79:399.84:320.93:591.74:537:32Waning Crescent6Thu
7Fri10:527.110:1610.35:130.24:452.04:537:33Waning Crescent7Fri
8Sat11:497.510:5510.85:54-0.55:312.34:537:34New Moon8Sat
9Sun12:437.86:37-1.16:182.64:537:34New Moon9Sun
10Mon1:368.17:22-1.67:072.84:537:35New Moon10Mon
11Tue12:2211.22:288.38:09-1.87:592.94:537:35New Moon11Tue
12Wed1:1011.03:208.48:57-1.88:563.04:537:36Waxing Crescent12Wed
13Thu2:0110.64:128.69:48-1.610:003.04:537:36Waxing Crescent13Thu
14Fri2:579.95:058.710:41-1.211:122.94:537:36Waxing Crescent14Fri
15Sat3:599.05:599.011:36-0.74:537:37First Quarter15Sat
16Sun5:098.16:519.312:322.612:33-0.14:537:37First Quarter16Sun
17Mon6:287.37:419.61:502.11:320.54:537:37First Quarter17Mon
18Tue7:526.98:2810.02:591.42:291.14:537:38Waxing Gibbous18Tue
19Wed9:136.89:1110.23:590.83:231.74:537:38Waxing Gibbous19Wed
20Thu10:237.09:5110.44:510.34:142.14:537:38Waxing Gibbous20Thu
21Fri11:237.310:2810.45:36-0.25:022.54:537:39Waxing Gibbous21Fri
22Sat12:167.56:16-0.45:472.94:547:39Full Moon22Sat
23Sun1:037.76:54-0.66:303.14:547:39Full Moon23Sun
24Mon1:457.87:29-0.77:113.34:547:39Full Moon24Mon
25Tue12:1210.02:247.88:03-0.77:523.44:557:39Full Moon25Tue
26Wed12:469.73:017.88:37-0.68:323.44:557:39Waning Gibbous26Wed
27Thu1:229.43:377.89:11-0.59:153.44:557:39Waning Gibbous27Thu
28Fri2:009.04:137.99:47-0.310:033.44:567:39Waning Gibbous28Fri
29Sat2:408.54:508.010:250.010:583.34:567:39Waning Gibbous29Sat
30Sun3:267.95:288.211:050.34:567:39Third Quarter30Sun
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 100% 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 Full Moon (100% 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