37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

59°
H -°
L 57°
S
5mph
Low tide
7:32 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 48m at 7:32 am (1.4 ft)
Next high tide : 1:04 pm (10.1 ft)
Sunset today : 6:38 pm
Sunrise tomorrow : 7:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 1826

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:077.75:58-0.15:373.25:187:23Waning Crescent1Tue
2Wed12:388.06:32-0.36:173.05:197:22New Moon2Wed
3Thu1:088.37:05-0.56:582.75:207:21New Moon3Thu
4Fri12:0610.31:398.77:38-0.57:402.45:217:20New Moon4Fri
5Sat12:5010.12:119.08:11-0.38:252.15:227:19Waxing Crescent5Sat
6Sun1:369.62:449.48:470.19:141.85:227:18Waxing Crescent6Sun
7Mon2:279.03:209.79:250.610:091.55:237:17Waxing Crescent7Mon
8Tue3:258.24:0110.010:061.211:111.25:247:16Waxing Crescent8Tue
9Wed4:347.44:4710.310:521.95:257:15First Quarter9Wed
10Thu5:576.85:4010.412:201.011:48 AM2.55:267:13First Quarter10Thu
11Fri7:326.76:4110.51:350.612:573.05:277:12First Quarter11Fri
12Sat8:577.07:4410.72:470.22:153.25:287:11Waxing Gibbous12Sat
13Sun10:027.68:4710.93:51-0.13:283.25:287:10Waxing Gibbous13Sun
14Mon10:538.19:4511.04:46-0.44:313.05:297:09Waxing Gibbous14Mon
15Tue11:378.510:3810.95:34-0.65:262.75:307:07Waxing Gibbous15Tue
16Wed12:168.86:17-0.66:172.45:317:06Full Moon16Wed
17Thu12:529.16:57-0.47:042.15:327:05Full Moon17Thu
18Fri12:1610.31:269.27:34-0.17:491.95:337:04Full Moon18Fri
19Sat1:029.71:589.38:100.38:331.75:337:02Waning Gibbous19Sat
20Sun1:479.12:299.38:450.89:181.65:347:01Waning Gibbous20Sun
21Mon2:348.43:019.39:201.310:041.65:357:00Waning Gibbous21Mon
22Tue3:247.73:339.29:561.910:551.65:366:58Waning Gibbous22Tue
23Wed4:227.04:109.110:362.511:531.65:376:57Third Quarter23Wed
24Thu5:346.54:559.011:253.05:386:56Third Quarter24Thu
25Fri7:046.45:479.012:591.512:293.45:396:54Third Quarter25Fri
26Sat8:326.66:469.02:081.31:453.65:396:53Third Quarter26Sat
27Sun9:336.97:469.23:091.12:543.65:406:52Waning Crescent27Sun
28Mon10:157.38:429.54:000.73:493.45:416:50Waning Crescent28Mon
29Tue10:497.79:339.84:430.44:353.15:426:49Waning Crescent29Tue
30Wed11:198.110:2110.05:200.25:172.75:436:47Waning Crescent30Wed
31Thu11:498.511:0810.15:550.05:572.35:446:46New Moon31Thu
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 0% 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 New Moon (0% 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