Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 2h 02m at 11:49 am (-0.9 ft)
Next high tide : 6:09 pm (8.7 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Feb 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:569.19:466.31:293.33:261.07:115:31First Quarter1Wed
2Thu7:529.310:366.82:423.54:170.57:105:32Waxing Gibbous2Thu
3Fri8:449.611:147.23:443.54:590.17:095:33Waxing Gibbous3Fri
4Sat9:349.911:467.64:353.35:37-0.27:085:35Waxing Gibbous4Sat
5Sun10:2010.25:193.16:12-0.57:075:36Waxing Gibbous5Sun
6Mon12:177.911:05 AM10.36:002.86:46-0.77:065:37Full Moon6Mon
7Tue12:478.311:49 AM10.46:412.57:19-0.77:055:38Full Moon7Tue
8Wed1:188.712:3510.27:232.17:54-0.67:045:39Full Moon8Wed
9Thu1:499.11:229.88:081.78:30-0.27:035:40Waning Gibbous9Thu
10Fri2:239.52:139.18:561.39:070.37:025:41Waning Gibbous10Fri
11Sat2:599.83:098.39:491.09:480.97:015:42Waning Gibbous11Sat
12Sun3:3810.04:167.410:480.810:331.77:005:43Waning Gibbous12Sun
13Mon4:2410.15:376.711:560.611:272.46:595:44Third Quarter13Mon
14Tue5:1710.17:136.51:120.46:585:45Third Quarter14Tue
15Wed6:1910.18:446.812:372.92:290.26:575:46Third Quarter15Wed
16Thu7:2610.19:527.32:013.23:37-0.26:565:48Waning Crescent16Thu
17Fri8:3210.210:437.93:203.24:34-0.46:545:49Waning Crescent17Fri
18Sat9:3310.311:268.34:262.95:23-0.66:535:50Waning Crescent18Sat
19Sun10:2710.25:212.56:06-0.66:525:51Waning Crescent19Sun
20Mon12:048.611:17 AM10.16:102.26:44-0.56:515:52New Moon20Mon
21Tue12:388.812:039.86:541.97:19-0.26:505:53New Moon21Tue
22Wed1:099.012:469.37:361.67:520.16:485:54New Moon22Wed
23Thu1:389.11:298.88:161.48:240.66:475:55New Moon23Thu
24Fri2:069.12:128.28:551.38:561.16:465:56Waxing Crescent24Fri
25Sat2:339.12:577.59:361.29:281.66:445:57Waxing Crescent25Sat
26Sun3:029.03:476.910:191.210:032.26:435:58Waxing Crescent26Sun
27Mon3:358.94:486.311:091.210:422.76:425:59Waxing Crescent27Mon
28Tue4:148.86:106.012:081.26:406:00First Quarter28Tue
29Wed5:028.67:496.01:171.16:396:01First Quarter29Wed
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 2:59 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 28% 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 Crescent (28% 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