Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 47m at 3:29 am (2.0 ft)
Next high tide : 8:07 am (6.2 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 - May 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:469.57:057.912:35-0.96:127:58First Quarter1Mon
2Tue5:518.88:118.11:033.01:41-0.56:107:58First Quarter2Tue
3Wed7:058.19:108.42:292.82:48-0.26:097:59First Quarter3Wed
4Thu8:237.710:008.83:452.33:500.16:088:00First Quarter4Thu
5Fri9:377.510:439.14:481.84:440.46:078:01Waxing Gibbous5Fri
6Sat10:437.511:209.35:411.25:310.76:068:02Waxing Gibbous6Sat
7Sun11:417.511:539.46:270.76:131.16:058:03Waxing Gibbous7Sun
8Mon12:347.57:070.36:511.56:048:04Waxing Gibbous8Mon
9Tue12:239.51:217.57:440.07:271.96:038:05Full Moon9Tue
10Wed12:519.42:077.58:18-0.28:022.26:028:06Full Moon10Wed
11Thu1:189.42:507.48:51-0.48:372.66:018:06Full Moon11Thu
12Fri1:469.33:337.39:24-0.59:132.96:008:07Full Moon12Fri
13Sat2:179.14:167.29:58-0.59:513.16:008:08Waning Gibbous13Sat
14Sun2:498.95:027.110:35-0.410:343.35:598:09Waning Gibbous14Sun
15Mon3:278.65:517.111:16-0.311:253.55:588:10Waning Gibbous15Mon
16Tue4:098.26:437.212:02-0.15:578:11Waning Gibbous16Tue
17Wed5:017.77:357.312:313.512:530.15:568:12Third Quarter17Wed
18Thu6:047.38:237.71:483.31:490.25:568:12Third Quarter18Thu
19Fri7:177.09:068.13:002.92:450.45:558:13Third Quarter19Fri
20Sat8:356.99:458.74:002.33:400.65:548:14Third Quarter20Sat
21Sun9:497.010:239.34:501.64:310.85:538:15Waning Crescent21Sun
22Mon10:567.311:019.95:370.75:191.15:538:16Waning Crescent22Mon
23Tue11:597.711:3910.56:22-0.16:061.45:528:16Waning Crescent23Tue
24Wed12:588.07:08-0.86:541.85:528:17New Moon24Wed
25Thu12:2010.91:558.27:54-1.47:432.15:518:18New Moon25Thu
26Fri1:0311.22:518.48:42-1.88:332.45:508:19New Moon26Fri
27Sat1:4911.23:478.49:32-1.99:282.75:508:20Waxing Crescent27Sat
28Sun2:3810.94:438.410:23-1.810:272.85:508:20Waxing Crescent28Sun
29Mon3:3010.35:418.511:16-1.411:362.95:498:21Waxing Crescent29Mon
30Tue4:279.56:398.612:12-1.05:498:22First Quarter30Tue
31Wed5:308.57:368.712:532.81:10-0.45:488:22First Quarter31Wed
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 5:48 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