Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:03 pm (2.7 ft)
Next high tide : in 3h 56m at 10:40 am (6.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Nov 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:468.36:148.61:05-0.31:493.56:325:10First Quarter1Sat
2Sun8:388.67:338.22:120.03:032.96:335:09First Quarter2Sun
3Mon9:219.08:468.03:100.34:022.36:345:08Waxing Gibbous3Mon
4Tue9:579.39:498.03:590.64:511.66:355:07Waxing Gibbous4Tue
5Wed10:289.510:457.94:410.95:331.16:365:06Waxing Gibbous5Wed
6Thu10:559.611:377.85:181.36:110.66:375:05Waxing Gibbous6Thu
7Fri11:209.75:521.86:450.36:395:04Full Moon7Fri
8Sat12:257.811:43 AM9.86:242.37:170.06:405:03Full Moon8Sat
9Sun1:127.712:069.86:562.87:49-0.26:415:02Full Moon9Sun
10Mon1:587.612:329.77:293.28:21-0.26:425:01Full Moon10Mon
11Tue2:447.51:009.68:023.68:56-0.26:435:00Waning Gibbous11Tue
12Wed3:337.41:339.48:393.89:35-0.26:445:00Waning Gibbous12Wed
13Thu4:257.32:129.19:214.110:190.06:454:59Waning Gibbous13Thu
14Fri5:237.22:588.710:174.211:110.16:464:58Waning Gibbous14Fri
15Sat6:227.33:548.211:344.26:474:57Third Quarter15Sat
16Sun7:137.65:037.812:080.21:033.96:484:57Third Quarter16Sun
17Mon7:557.96:227.51:070.32:153.46:494:56Third Quarter17Mon
18Tue8:308.47:417.52:040.53:112.76:504:55Third Quarter18Tue
19Wed9:029.08:557.62:550.63:591.86:514:55Waning Crescent19Wed
20Thu9:349.710:047.83:421.04:450.86:524:54Waning Crescent20Thu
21Fri10:0610.411:088.14:271.45:30-0.26:534:54Waning Crescent21Fri
22Sat10:4111.15:111.96:15-1.06:544:53New Moon22Sat
23Sun12:098.311:19 AM11.55:562.47:02-1.66:554:53New Moon23Sun
24Mon1:098.412:0011.76:422.87:50-1.96:564:52New Moon24Mon
25Tue2:088.412:4511.77:313.28:40-1.96:574:52Waxing Crescent25Tue
26Wed3:068.41:3311.38:253.59:33-1.76:584:51Waxing Crescent26Wed
27Thu4:068.32:2610.69:263.710:29-1.36:594:51Waxing Crescent27Thu
28Fri5:068.33:259.710:393.711:27-0.87:004:51Waxing Crescent28Fri
29Sat6:068.44:328.712:053.67:014:50First Quarter29Sat
30Sun7:028.65:487.812:28-0.21:303.17:024:50First Quarter30Sun
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 1:21 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 transitional phase. Tonight's moon is 77% 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 Waxing Gibbous (77% 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