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 2m 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 - May 1806

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:057.86:22-0.76:041.85:197:04Full Moon1Thu
2Fri12:597.87:04-1.06:472.35:187:04Full Moon2Fri
3Sat12:0610.31:517.77:45-1.17:302.65:177:05Full Moon3Sat
4Sun12:4110.12:417.68:26-1.18:143.05:167:06Waning Gibbous4Sun
5Mon1:179.73:327.49:07-0.99:003.25:157:07Waning Gibbous5Mon
6Tue1:559.34:227.29:49-0.79:513.45:147:08Waning Gibbous6Tue
7Wed2:368.75:157.110:35-0.410:513.55:137:09Waning Gibbous7Wed
8Thu3:238.16:077.111:240.05:127:10Third Quarter8Thu
9Fri4:177.56:567.212:043.412:160.35:117:11Third Quarter9Fri
10Sat5:226.97:387.41:203.11:090.65:107:12Third Quarter10Sat
11Sun6:366.58:147.82:272.72:010.95:097:12Third Quarter11Sun
12Mon7:526.38:468.33:222.12:491.25:087:13Waning Crescent12Mon
13Tue9:036.49:178.84:081.53:331.55:077:14Waning Crescent13Tue
14Wed10:066.69:489.34:480.84:141.85:067:15Waning Crescent14Wed
15Thu11:046.910:209.75:250.24:542.25:057:16Waning Crescent15Thu
16Fri11:577.210:5510.26:02-0.45:352.55:047:17New Moon16Fri
17Sat12:487.46:40-0.96:162.75:047:18New Moon17Sat
18Sun1:387.67:21-1.47:002.95:037:18New Moon18Sun
19Mon12:1310.72:287.78:05-1.67:473.15:027:19New Moon19Mon
20Tue12:5810.63:197.88:51-1.78:393.25:017:20Waxing Crescent20Tue
21Wed1:4710.44:117.89:40-1.69:393.25:017:21Waxing Crescent21Wed
22Thu2:409.85:038.010:32-1.310:503.05:007:22Waxing Crescent22Thu
23Fri3:419.15:558.311:26-0.94:597:22First Quarter23Fri
24Sat4:508.26:468.712:102.712:23-0.34:597:23First Quarter24Sat
25Sun6:097.47:349.21:312.21:200.34:587:24First Quarter25Sun
26Mon7:356.98:199.72:441.52:170.94:587:25Waxing Gibbous26Mon
27Tue8:586.79:0110.13:460.73:111.54:577:26Waxing Gibbous27Tue
28Wed10:126.99:4110.44:390.04:032.04:577:26Waxing Gibbous28Wed
29Thu11:177.210:2010.55:27-0.54:522.44:567:27Waxing Gibbous29Thu
30Fri12:137.46:11-0.95:402.84:567:28Full Moon30Fri
31Sat1:047.66:52-1.16:253.14:557:28Full Moon31Sat
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