Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 2h 18m at 2:25 am (2.8 ft)
Next high tide : 6:40 am (6.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jan 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:0210.510:377.23:212.24:520.17:225:00Waning Crescent1Tue
2Wed9:4410.611:367.64:152.75:37-0.37:225:01Waning Crescent2Wed
3Thu10:2310.75:053.06:18-0.67:225:02Waning Crescent3Thu
4Fri12:257.911:00 AM10.65:523.26:55-0.77:225:03New Moon4Fri
5Sat1:108.011:37 AM10.46:353.47:30-0.77:225:04New Moon5Sat
6Sun1:498.112:1210.27:163.48:04-0.77:225:05New Moon6Sun
7Mon2:258.112:489.97:563.48:37-0.67:225:05New Moon7Mon
8Tue2:598.01:239.58:353.49:11-0.47:225:06Waxing Crescent8Tue
9Wed3:328.02:019.09:163.49:45-0.17:225:07Waxing Crescent9Wed
10Thu4:058.02:418.410:023.310:210.27:225:08Waxing Crescent10Thu
11Fri4:398.13:277.710:563.210:590.77:225:09Waxing Crescent11Fri
12Sat5:168.24:237.011:593.011:411.27:225:10First Quarter12Sat
13Sun5:558.55:396.31:082.67:215:11First Quarter13Sun
14Mon6:378.87:136.012:291.72:152.07:215:12First Quarter14Mon
15Tue7:209.38:476.21:242.23:131.37:215:13First Quarter15Tue
16Wed8:059.810:036.72:242.74:040.57:205:14Waxing Gibbous16Wed
17Thu8:5210.311:037.33:243.04:52-0.27:205:15Waxing Gibbous17Thu
18Fri9:3910.911:537.84:203.25:37-0.97:205:16Waxing Gibbous18Fri
19Sat10:2811.35:133.26:23-1.47:195:17Full Moon19Sat
20Sun12:408.311:17 AM11.76:053.17:08-1.77:195:18Full Moon20Sun
21Mon1:238.612:0711.76:562.97:54-1.87:185:20Full Moon21Mon
22Tue2:068.912:5811.47:492.78:39-1.67:185:21Waning Gibbous22Tue
23Wed2:499.11:5110.88:442.59:25-1.27:175:22Waning Gibbous23Wed
24Thu3:329.32:479.99:432.210:11-0.67:165:23Waning Gibbous24Thu
25Fri4:169.43:488.810:492.010:590.27:165:24Waning Gibbous25Fri
26Sat5:039.64:597.612:011.87:155:25Third Quarter26Sat
27Sun5:529.76:256.81:171.47:155:26Third Quarter27Sun
28Mon6:439.88:026.612:491.82:311.07:145:27Third Quarter28Mon
29Tue7:369.99:306.81:542.53:370.57:135:28Waning Crescent29Tue
30Wed8:2810.010:377.33:022.94:330.17:125:29Waning Crescent30Wed
31Thu9:1610.111:297.74:043.25:20-0.27:115:30Waning Crescent31Thu
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 4:32 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 neap phase. Tonight's moon is 46% 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 minimum.

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 Third Quarter (46% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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