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 23m 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 - Jan 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:5611.44:413.76:07-1.57:225:01Waxing Gibbous1Sun
2Mon12:357.910:47 AM11.85:363.66:54-1.97:225:02Full Moon2Mon
3Tue1:198.311:39 AM11.96:293.57:41-2.07:225:02Full Moon3Tue
4Wed2:018.512:3211.87:243.28:26-1.97:225:03Full Moon4Wed
5Thu2:428.71:2511.28:212.99:11-1.67:225:04Waning Gibbous5Thu
6Fri3:239.02:2010.39:212.69:55-1.07:225:05Waning Gibbous6Fri
7Sat4:059.33:199.110:262.310:39-0.27:225:06Waning Gibbous7Sat
8Sun4:479.54:267.811:382.011:250.77:225:07Third Quarter8Sun
9Mon5:319.85:476.712:531.67:225:08Third Quarter9Mon
10Tue6:179.97:276.212:141.62:081.17:225:09Third Quarter10Tue
11Wed7:0510.19:096.31:112.53:150.67:225:10Third Quarter11Wed
12Thu7:5410.110:286.92:173.14:140.17:215:11Waning Crescent12Thu
13Fri8:4310.211:247.43:253.65:04-0.27:215:12Waning Crescent13Fri
14Sat9:2910.24:253.75:47-0.47:215:13Waning Crescent14Sat
15Sun12:097.710:13 AM10.25:173.86:25-0.57:205:14Waning Crescent15Sun
16Mon12:477.810:54 AM10.26:013.77:00-0.67:205:15New Moon16Mon
17Tue1:207.911:32 AM10.16:413.57:31-0.67:205:16New Moon17Tue
18Wed1:487.912:0910.07:173.48:01-0.67:195:17New Moon18Wed
19Thu2:157.912:459.77:533.28:30-0.57:195:18New Moon19Thu
20Fri2:398.01:219.28:293.08:57-0.27:185:19Waxing Crescent20Fri
21Sat3:048.21:598.69:092.89:260.17:185:20Waxing Crescent21Sat
22Sun3:308.42:417.99:532.69:550.77:175:21Waxing Crescent22Sun
23Mon3:588.73:317.110:432.310:271.37:175:22Waxing Crescent23Mon
24Tue4:299.04:386.311:422.011:042.07:165:23First Quarter24Tue
25Wed5:069.26:145.812:491.67:155:25First Quarter25Wed
26Thu5:499.68:135.82:011.07:155:26First Quarter26Thu
27Fri6:429.99:486.412:513.33:090.37:145:27First Quarter27Fri
28Sat7:4210.310:487.12:103.74:09-0.47:135:28Waxing Gibbous28Sat
29Sun8:4310.811:337.63:273.85:03-1.07:125:29Waxing Gibbous29Sun
30Mon9:4311.34:323.65:53-1.57:125:30Waxing Gibbous30Mon
31Tue12:138.010:40 AM11.65:303.36:39-1.77:115:31Full Moon31Tue
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