37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

57°
H 74°
L 56°
SE
2mph
High tide
10:52 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, September 6, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:05 pm (3.7 ft)
Next high tide : in 3h 08m at 10:52 am (7.6 ft)
Sunset today : 7:29 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Crescent (23% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:237.94:259.110:241.011:192.25:127:15Waning Gibbous1Sat
2Sun4:227.25:079.311:081.65:137:14Third Quarter2Sun
3Mon5:396.75:559.612:241.811:59 AM2.15:147:13Third Quarter3Mon
4Tue7:106.56:4810.01:341.41:012.65:147:12Third Quarter4Tue
5Wed8:376.77:4510.42:410.82:092.95:157:11Waning Crescent5Wed
6Thu9:487.28:4210.93:420.23:163.05:167:10Waning Crescent6Thu
7Fri10:447.89:3911.34:37-0.44:182.95:177:09Waning Crescent7Fri
8Sat11:338.410:3311.65:27-0.85:152.65:187:08Waning Crescent8Sat
9Sun12:188.86:15-1.06:092.35:197:07New Moon9Sun
10Mon1:009.27:00-1.17:022.05:207:06New Moon10Mon
11Tue12:2011.31:429.67:45-0.97:561.85:207:05New Moon11Tue
12Wed1:1210.82:239.88:29-0.58:501.65:217:03Waxing Crescent12Wed
13Thu2:0510.03:049.99:120.09:461.55:227:02Waxing Crescent13Thu
14Fri3:019.13:479.99:570.710:461.45:237:01Waxing Crescent14Fri
15Sat4:018.24:329.810:441.411:511.45:247:00First Quarter15Sat
16Sun5:117.45:219.611:382.15:256:58First Quarter16Sun
17Mon6:336.96:139.51:001.312:402.75:256:57First Quarter17Mon
18Tue8:026.97:099.42:091.21:503.05:266:56First Quarter18Tue
19Wed9:177.28:049.43:131.02:573.25:276:54Waxing Gibbous19Wed
20Thu10:137.58:569.54:070.73:553.25:286:53Waxing Gibbous20Thu
21Fri10:567.89:429.74:520.54:443.15:296:52Waxing Gibbous21Fri
22Sat11:328.010:259.85:310.45:262.95:306:50Waxing Gibbous22Sat
23Sun12:038.26:060.36:042.75:316:49Full Moon23Sun
24Mon12:318.36:380.26:392.55:316:48Full Moon24Mon
25Tue12:588.57:080.37:132.35:326:46Full Moon25Tue
26Wed12:239.61:268.77:380.47:482.15:336:45Full Moon26Wed
27Thu1:029.31:559.08:080.68:251.95:346:44Waning Gibbous27Thu
28Fri1:449.02:259.28:400.99:061.75:356:42Waning Gibbous28Fri
29Sat2:298.52:599.39:151.39:521.55:366:41Waning Gibbous29Sat
30Sun3:207.93:379.59:531.710:451.35:366:39Waning Gibbous30Sun
31Mon4:237.44:219.610:392.311:481.15:376:38Third Quarter31Mon
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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Waning Crescent (23% illuminated). This places Upper Guadalupe Slough, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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