37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

60°
H -°
L 58°
NE
4mph
High tide
6:48 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 11:58 am (3.4 ft)
Next high tide : in 3h 45m at 6:48 am (6.7 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 6:40 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 1904

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:449.53:547.99:29-0.89:403.24:487:22Waning Gibbous1Wed
2Thu2:258.94:407.810:11-0.510:383.24:487:23Waning Gibbous2Thu
3Fri3:108.25:277.810:55-0.111:443.24:477:24Waning Gibbous3Fri
4Sat4:007.56:137.911:420.34:477:24Third Quarter4Sat
5Sun5:006.96:568.012:553.012:320.74:477:25Third Quarter5Sun
6Mon6:116.47:378.32:022.61:241.14:467:25Third Quarter6Mon
7Tue7:296.18:158.73:002.12:151.44:467:26Third Quarter7Tue
8Wed8:446.18:519.13:501.63:041.84:467:27Waning Crescent8Wed
9Thu9:506.49:269.54:321.03:502.04:467:27Waning Crescent9Thu
10Fri10:486.710:029.95:110.44:332.34:467:28Waning Crescent10Fri
11Sat11:407.110:3910.25:47-0.15:162.54:467:28Waning Crescent11Sat
12Sun12:287.46:24-0.65:592.74:467:29New Moon12Sun
13Mon1:157.87:03-1.06:442.84:467:29New Moon13Mon
14Tue2:008.07:43-1.37:302.94:467:29New Moon14Tue
15Wed12:4210.72:468.28:26-1.48:212.94:467:30Waxing Crescent15Wed
16Thu1:2810.43:338.49:11-1.49:172.94:467:30Waxing Crescent16Thu
17Fri2:1910.04:218.69:58-1.210:202.84:467:31Waxing Crescent17Fri
18Sat3:159.35:108.910:48-0.811:312.64:467:31Waxing Crescent18Sat
19Sun4:198.46:019.211:41-0.24:467:31First Quarter19Sun
20Mon5:337.66:529.612:492.212:380.44:467:31First Quarter20Mon
21Tue6:567.07:4210.02:041.61:371.04:477:32First Quarter21Tue
22Wed8:226.88:3010.43:111.02:361.54:477:32Waxing Gibbous22Wed
23Thu9:407.09:1610.74:100.33:342.04:477:32Waxing Gibbous23Thu
24Fri10:477.310:0010.85:01-0.24:282.34:477:32Waxing Gibbous24Fri
25Sat11:457.610:4310.85:48-0.65:202.64:487:32Waxing Gibbous25Sat
26Sun12:367.96:31-0.86:092.84:487:32Full Moon26Sun
27Mon1:228.17:11-0.96:563.04:487:32Full Moon27Mon
28Tue12:0310.42:058.17:49-0.97:413.14:497:32Full Moon28Tue
29Wed12:4210.12:448.28:26-0.88:273.14:497:32Waning Gibbous29Wed
30Thu1:209.63:228.19:03-0.69:133.24:507:32Waning Gibbous30Thu
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 neap phase. Tonight's moon is 56% 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 minimum.

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 Third Quarter (56% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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