37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

55°
H -°
L 50°
NNW
0mph
Low tide
6:22 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 24, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 6h 28m at 6:22 am (1.4 ft)
Next high tide : 11:53 am (9.8 ft)
Sunset today : 6:20 pm
Sunrise tomorrow : 7:24 am
Moon phase : Waxing Gibbous (93% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1803

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:566.89:548.44:121.94:000.95:207:03Waxing Gibbous1Sun
2Mon9:576.810:198.74:561.34:371.35:197:04Waxing Gibbous2Mon
3Tue10:516.910:428.95:340.85:111.75:177:05Waxing Gibbous3Tue
4Wed11:426.911:059.26:090.35:422.15:167:06Waxing Gibbous4Wed
5Thu12:297.06:41-0.16:142.55:157:07Full Moon5Thu
6Fri1:157.17:13-0.46:452.95:147:08Full Moon6Fri
7Sat2:017.17:46-0.77:183.25:137:09Full Moon7Sat
8Sun12:289.62:487.18:21-0.87:543.45:127:10Full Moon8Sun
9Mon1:029.63:387.09:01-0.98:343.65:117:10Waning Gibbous9Mon
10Tue1:419.54:307.09:45-0.99:213.75:107:11Waning Gibbous10Tue
11Wed2:259.25:267.010:34-0.910:233.85:097:12Waning Gibbous11Wed
12Thu3:188.86:207.211:28-0.711:433.65:087:13Third Quarter12Thu
13Fri4:228.37:087.512:26-0.55:077:14Third Quarter13Fri
14Sat5:387.77:508.11:103.21:23-0.25:067:15Third Quarter14Sat
15Sun7:027.38:288.72:262.42:180.25:067:16Third Quarter15Sun
16Mon8:257.19:049.53:281.53:100.75:057:17Waning Crescent16Mon
17Tue9:427.29:4110.24:230.53:591.25:047:17Waning Crescent17Tue
18Wed10:537.410:1810.85:13-0.44:461.85:037:18Waning Crescent18Wed
19Thu11:577.610:5811.16:01-1.25:342.35:027:19New Moon19Thu
20Fri12:577.86:48-1.66:222.85:027:20New Moon20Fri
21Sat1:547.97:35-1.97:123.15:017:21New Moon21Sat
22Sun12:2211.02:497.98:22-1.88:053.35:007:21Waxing Crescent22Sun
23Mon1:0710.63:437.89:10-1.69:013.55:007:22Waxing Crescent23Mon
24Tue1:5410.04:377.89:59-1.210:043.54:597:23Waxing Crescent24Tue
25Wed2:449.25:307.710:49-0.811:143.54:587:24Waxing Crescent25Wed
26Thu3:378.46:217.811:41-0.34:587:25First Quarter26Thu
27Fri4:387.57:067.912:313.212:320.24:577:25First Quarter27Fri
28Sat5:476.77:458.21:432.81:230.74:577:26First Quarter28Sat
29Sun7:076.18:198.52:472.32:111.24:567:27First Quarter29Sun
30Mon8:295.98:488.83:411.62:561.74:567:27Waxing Gibbous30Mon
31Tue9:436.09:179.14:271.03:392.24:557:28Waxing Gibbous31Tue
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 93% 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 (93% 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