Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 37m at 5:00 am (0.6 ft)
Next high tide : 10:40 am (6.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:517.611:309.05:511.45:430.66:117:58Waxing Gibbous1Sat
2Sun11:517.811:599.66:310.66:221.06:107:59Waxing Gibbous2Sun
3Mon12:497.97:13-0.27:011.56:097:59Full Moon3Mon
4Tue12:3010.21:487.97:56-1.07:412.06:088:00Full Moon4Tue
5Wed1:0410.62:477.98:41-1.58:242.56:078:01Full Moon5Wed
6Thu1:4210.93:477.89:30-1.89:113.06:068:02Waning Gibbous6Thu
7Fri2:2510.84:507.710:21-1.810:043.46:058:03Waning Gibbous7Fri
8Sat3:1410.55:577.611:18-1.611:083.66:048:04Waning Gibbous8Sat
9Sun4:109.97:057.612:19-1.36:038:05Third Quarter9Sun
10Mon5:159.18:087.812:313.61:25-0.96:028:06Third Quarter10Mon
11Tue6:318.39:028.22:053.42:30-0.56:018:07Third Quarter11Tue
12Wed7:527.79:478.63:272.83:30-0.16:008:07Third Quarter12Wed
13Thu9:117.310:269.04:332.14:220.35:598:08Waning Crescent13Thu
14Fri10:247.111:009.45:291.35:080.85:598:09Waning Crescent14Fri
15Sat11:297.111:309.66:160.75:491.35:588:10Waning Crescent15Sat
16Sun12:277.16:570.16:271.85:578:11Waning Crescent16Sun
17Mon1:217.27:35-0.37:042.35:568:12New Moon17Mon
18Tue12:249.82:117.28:09-0.57:402.85:558:13New Moon18Tue
19Wed12:509.72:597.28:42-0.78:163.25:558:13New Moon19Wed
20Thu1:179.63:457.29:16-0.88:533.55:548:14New Moon20Thu
21Fri1:479.54:317.29:51-0.79:323.75:538:15Waxing Crescent21Fri
22Sat2:219.25:187.110:28-0.610:153.95:538:16Waxing Crescent22Sat
23Sun2:598.96:087.011:10-0.511:073.95:528:17Waxing Crescent23Sun
24Mon3:438.56:577.111:55-0.35:518:17Waxing Crescent24Mon
25Tue4:338.07:437.312:133.912:45-0.25:518:18First Quarter25Tue
26Wed5:327.58:237.61:323.71:370.15:508:19First Quarter26Wed
27Thu6:437.08:588.02:453.22:280.35:508:20First Quarter27Thu
28Fri8:036.79:308.63:462.63:180.65:498:20First Quarter28Fri
29Sat9:246.610:029.24:371.74:061.15:498:21Waxing Gibbous29Sat
30Sun10:406.810:359.95:230.84:521.65:498:22Waxing Gibbous30Sun
31Mon11:497.111:1010.66:08-0.15:382.15:488:22Waxing Gibbous31Mon
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 7:50 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 transitional phase. Tonight's moon is 69% 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 First Quarter (69% 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