37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

61°
H -°
L 56°
NW
4mph
Low tide
4:20 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 50m at 4:20 am (-0.2 ft)
Next high tide : 10:52 am (7.6 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (34% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 1886

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:3211.42:079.38:04-1.28:102.15:127:16Waxing Crescent1Sun
2Mon1:2411.02:509.68:49-0.99:071.95:137:15Waxing Crescent2Mon
3Tue2:1910.33:339.89:34-0.410:081.75:137:14Waxing Crescent3Tue
4Wed3:189.34:1910.010:220.311:141.65:147:13Waxing Crescent4Wed
5Thu4:248.35:0810.111:131.05:157:11First Quarter5Thu
6Fri5:417.56:0110.112:271.412:101.75:167:10First Quarter6Fri
7Sat7:097.06:5610.21:411.11:152.45:177:09First Quarter7Sat
8Sun8:367.17:5210.22:510.82:242.85:187:08Waxing Gibbous8Sun
9Mon9:497.48:4610.23:520.53:293.05:187:07Waxing Gibbous9Mon
10Tue10:457.89:3510.24:440.24:263.15:197:06Waxing Gibbous10Tue
11Wed11:328.110:2010.25:290.05:153.05:207:05Waxing Gibbous11Wed
12Thu12:118.26:08-0.15:592.95:217:04Full Moon12Thu
13Fri12:458.36:43-0.16:382.85:227:02Full Moon13Fri
14Sat1:158.47:150.07:152.75:237:01Full Moon14Sat
15Sun12:189.81:438.47:460.17:502.65:247:00Full Moon15Sun
16Mon12:549.52:108.58:160.38:262.55:246:59Full Moon16Mon
17Tue1:319.12:378.68:460.69:032.35:256:57Waning Gibbous17Tue
18Wed2:108.63:078.89:170.99:442.25:266:56Waning Gibbous18Wed
19Thu2:538.03:408.99:501.310:312.15:276:55Waning Gibbous19Thu
20Fri3:437.44:179.010:271.811:261.95:286:53Waning Gibbous20Fri
21Sat4:476.95:009.111:112.35:296:52Third Quarter21Sat
22Sun6:096.55:509.312:301.712:072.85:306:51Third Quarter22Sun
23Mon7:396.66:479.61:391.31:153.15:306:49Third Quarter23Mon
24Tue8:577.07:4710.02:450.82:263.25:316:48Waning Crescent24Tue
25Wed9:577.58:4610.43:440.33:313.15:326:47Waning Crescent25Wed
26Thu10:458.19:4310.94:36-0.24:282.85:336:45Waning Crescent26Thu
27Fri11:288.610:3811.25:24-0.65:212.45:346:44Waning Crescent27Fri
28Sat12:089.16:10-0.86:122.05:356:42New Moon28Sat
29Sun12:489.56:54-0.87:041.55:356:41New Moon29Sun
30Mon12:2511.11:289.97:38-0.57:561.25:366:40New Moon30Mon
31Tue1:1910.62:0910.18:22-0.18:490.95:376:38Waxing Crescent31Tue
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 34% 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 Third Quarter (34% 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