Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 5:02 pm (3.6 ft)
Next high tide : in 2h 32m at 12:15 pm (7.2 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:2210.15:338.311:09-1.411:252.95:488:23Waning Gibbous1Wed
2Thu4:219.36:228.612:00-1.05:488:24Third Quarter2Thu
3Fri5:278.37:128.912:422.612:53-0.45:478:24Third Quarter3Fri
4Sat6:447.48:009.42:032.11:490.35:478:25Third Quarter4Sat
5Sun8:096.88:479.83:181.52:451.05:478:26Third Quarter5Sun
6Mon9:366.69:3210.24:240.83:421.65:478:26Waning Crescent6Mon
7Tue10:546.710:1610.45:210.14:372.25:478:27Waning Crescent7Tue
8Wed12:017.16:10-0.45:292.65:468:27Waning Crescent8Wed
9Thu12:587.46:55-0.86:192.95:468:28Waning Crescent9Thu
10Fri1:487.67:36-0.97:073.15:468:28New Moon10Fri
11Sat12:1510.42:337.78:14-1.07:523.35:468:29New Moon11Sat
12Sun12:5310.23:147.88:51-1.08:363.35:468:29New Moon12Sun
13Mon1:309.93:537.89:26-0.99:203.45:468:30New Moon13Mon
14Tue2:079.54:297.710:01-0.710:043.35:468:30Waxing Crescent14Tue
15Wed2:469.15:037.710:36-0.510:533.35:468:30Waxing Crescent15Wed
16Thu3:278.55:387.811:12-0.111:473.15:468:31Waxing Crescent16Thu
17Fri4:117.86:138.011:490.35:468:31Waxing Crescent17Fri
18Sat5:037.16:498.312:482.912:280.75:478:31First Quarter18Sat
19Sun6:086.47:278.61:552.61:111.35:478:32First Quarter19Sun
20Mon7:295.98:069.02:582.11:581.85:478:32First Quarter20Mon
21Tue9:005.88:479.53:551.52:512.35:478:32First Quarter21Tue
22Wed10:256.09:2910.04:450.83:472.75:478:32Waxing Gibbous22Wed
23Thu11:336.510:1310.55:320.14:423.05:488:32Waxing Gibbous23Thu
24Fri12:307.06:16-0.65:353.25:488:32Waxing Gibbous24Fri
25Sat1:197.57:01-1.26:283.25:488:33Full Moon25Sat
26Sun2:047.97:45-1.67:203.25:498:33Full Moon26Sun
27Mon12:3611.52:488.28:31-1.88:143.05:498:33Full Moon27Mon
28Tue1:2711.43:318.59:16-1.89:102.85:498:33Waning Gibbous28Tue
29Wed2:2011.04:138.910:01-1.610:102.65:508:33Waning Gibbous29Wed
30Thu3:1510.24:579.210:47-1.111:152.35:508:33Waning Gibbous30Thu
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 2:38 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 10% 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 Waning Crescent (10% 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