Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 1h 38m at 2:58 am (1.8 ft)
Next high tide : 7:38 am (6.4 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:2110.23:549.09:52-0.710:062.36:128:16Waning Gibbous1Wed
2Thu3:129.54:289.410:29-0.111:021.96:138:15Waning Gibbous2Thu
3Fri4:098.65:039.811:070.66:138:14Waning Gibbous3Fri
4Sat5:177.65:4410.212:051.511:49 AM1.56:148:13Third Quarter4Sat
5Sun6:436.76:3010.51:161.112:372.46:158:12Third Quarter5Sun
6Mon8:266.57:2410.72:310.71:383.16:168:11Third Quarter6Mon
7Tue10:056.88:2410.83:450.22:533.66:178:10Waning Crescent7Tue
8Wed11:187.39:2710.94:52-0.24:103.86:188:09Waning Crescent8Wed
9Thu12:117.85:49-0.65:183.76:198:08Waning Crescent9Thu
10Fri12:548.26:40-0.86:163.46:198:06Waning Crescent10Fri
11Sat1:338.47:24-0.87:073.16:208:05New Moon11Sat
12Sun12:1110.92:088.68:03-0.87:552.96:218:04New Moon12Sun
13Mon12:5710.52:418.78:39-0.58:392.66:228:03New Moon13Mon
14Tue1:4110.03:108.89:12-0.29:232.46:238:02New Moon14Tue
15Wed2:249.43:388.89:430.310:062.26:248:00Waxing Crescent15Wed
16Thu3:078.64:048.910:130.910:512.06:247:59Waxing Crescent16Thu
17Fri3:537.84:309.010:431.611:391.86:257:58Waxing Crescent17Fri
18Sat4:467.15:009.111:152.26:267:57Waxing Crescent18Sat
19Sun5:546.45:359.112:331.711:49 AM2.96:277:55First Quarter19Sun
20Mon7:316.16:199.11:361.612:343.56:287:54First Quarter20Mon
21Tue9:356.27:149.12:451.41:454.06:297:53First Quarter21Tue
22Wed10:536.78:169.33:521.03:164.16:307:51First Quarter22Wed
23Thu11:367.19:169.64:500.64:254.16:307:50Waxing Gibbous23Thu
24Fri12:087.45:380.25:173.86:317:49Waxing Gibbous24Fri
25Sat12:367.76:19-0.26:023.56:327:47Waxing Gibbous25Sat
26Sun1:048.16:57-0.56:443.06:337:46Full Moon26Sun
27Mon1:328.47:33-0.67:272.56:347:44Full Moon27Mon
28Tue12:3810.62:008.98:08-0.68:112.06:357:43Full Moon28Tue
29Wed1:2710.42:309.48:43-0.28:581.46:357:42Full Moon29Wed
30Thu2:199.93:029.99:190.39:491.06:367:40Waning Gibbous30Thu
31Fri3:159.13:3610.39:561.010:430.66:377:39Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 5:18 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 59% 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 First Quarter (59% 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