Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:09 pm (3.7 ft)
Next high tide : in 2h 18m at 3:55 pm (7.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jul 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:417.66:32-0.95:593.15:508:32Waxing Gibbous1Thu
2Fri1:317.97:18-1.16:533.25:518:32Full Moon2Fri
3Sat12:0511.02:158.28:01-1.27:443.15:518:32Full Moon3Sat
4Sun12:5010.82:568.38:41-1.18:333.15:528:32Full Moon4Sun
5Mon1:3410.33:348.49:19-0.99:203.05:528:32Full Moon5Mon
6Tue2:169.84:098.49:56-0.610:082.95:538:32Waning Gibbous6Tue
7Wed2:589.14:438.410:31-0.210:582.85:548:31Waning Gibbous7Wed
8Thu3:418.45:168.511:070.311:522.75:548:31Waning Gibbous8Thu
9Fri4:287.65:498.611:430.85:558:31Waning Gibbous9Fri
10Sat5:246.86:258.812:522.512:211.45:558:30Third Quarter10Sat
11Sun6:356.17:049.01:572.21:052.15:568:30Third Quarter11Sun
12Mon8:065.77:479.23:021.81:562.65:578:30Third Quarter12Mon
13Tue9:425.98:339.54:011.32:553.05:578:29Third Quarter13Tue
14Wed10:576.39:219.94:530.83:563.35:588:29Waning Crescent14Wed
15Thu11:526.810:0810.35:380.34:513.45:598:28Waning Crescent15Thu
16Fri12:367.26:19-0.25:423.45:598:28Waning Crescent16Fri
17Sat1:147.66:59-0.66:303.36:008:27New Moon17Sat
18Sun1:518.07:37-0.97:163.16:018:27New Moon18Sun
19Mon12:2711.02:278.38:16-1.18:042.96:028:26New Moon19Mon
20Tue1:1511.03:038.78:55-1.18:542.56:028:25New Moon20Tue
21Wed2:0410.63:399.19:34-0.99:472.26:038:25Waxing Crescent21Wed
22Thu2:5610.04:179.510:15-0.510:451.96:048:24Waxing Crescent22Thu
23Fri3:529.24:589.910:570.111:481.66:058:23Waxing Crescent23Fri
24Sat4:568.25:4210.211:420.96:068:22First Quarter24Sat
25Sun6:117.36:3010.412:581.312:321.76:068:22First Quarter25Sun
26Mon7:406.77:2410.62:120.91:312.46:078:21First Quarter26Mon
27Tue9:156.78:2210.73:260.52:412.96:088:20First Quarter27Tue
28Wed10:377.19:2010.84:320.13:533.26:098:19Waxing Gibbous28Wed
29Thu11:397.610:1610.85:30-0.35:003.36:108:18Waxing Gibbous29Thu
30Fri12:288.06:20-0.55:583.26:108:17Waxing Gibbous30Fri
31Sat1:118.37:04-0.66:493.06:118:16Full Moon31Sat
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 6:32 pm — 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 spring phase. Tonight's moon is 97% 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 Full Moon (97% 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