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 5h 02m at 2:46 pm (1.3 ft)
Next high tide : 8:48 pm (9.2 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:218.67:17-0.87:052.76:128:15New Moon1Mon
2Tue12:1811.12:048.88:00-0.87:552.66:138:14New Moon2Tue
3Wed1:0410.82:438.98:40-0.78:432.56:148:13New Moon3Wed
4Thu1:4910.43:209.09:18-0.49:292.46:158:12Waxing Crescent4Thu
5Fri2:339.83:569.09:560.010:162.36:168:11Waxing Crescent5Fri
6Sat3:179.14:308.910:320.411:052.36:178:10Waxing Crescent6Sat
7Sun4:038.35:058.911:101.011:582.26:188:09Waxing Crescent7Sun
8Mon4:547.55:438.911:491.66:188:08First Quarter8Mon
9Tue5:556.86:248.912:572.112:342.26:198:07First Quarter9Tue
10Wed7:136.47:109.02:022.01:282.76:208:05First Quarter10Wed
11Thu8:456.38:009.13:081.72:313.16:218:04First Quarter11Thu
12Fri10:066.58:529.34:071.33:373.36:228:03First Quarter12Fri
13Sat11:057.09:439.64:580.94:353.36:238:02Waxing Gibbous13Sat
14Sun11:497.410:3010.05:430.55:243.26:238:01Waxing Gibbous14Sun
15Mon12:277.86:220.16:083.16:247:59Waxing Gibbous15Mon
16Tue1:018.17:00-0.26:502.86:257:58Full Moon16Tue
17Wed12:0110.51:358.57:36-0.47:312.56:267:57Full Moon17Wed
18Thu12:4610.62:098.88:13-0.58:142.26:277:56Full Moon18Thu
19Fri1:3210.52:449.28:50-0.49:001.96:287:54Full Moon19Fri
20Sat2:2010.23:219.59:29-0.19:491.66:297:53Waning Gibbous20Sat
21Sun3:119.64:009.810:100.310:431.36:297:52Waning Gibbous21Sun
22Mon4:088.94:4210.010:540.911:431.26:307:50Waning Gibbous22Mon
23Tue5:138.15:2910.111:431.66:317:49Third Quarter23Tue
24Wed6:307.56:2310.212:511.012:412.26:327:47Third Quarter24Wed
25Thu7:577.27:2410.22:060.81:502.76:337:46Third Quarter25Thu
26Fri9:227.48:2810.33:200.53:063.06:347:45Third Quarter26Fri
27Sat10:327.99:3010.44:270.24:173.06:347:43Waning Crescent27Sat
28Sun11:278.310:2910.55:25-0.15:192.86:357:42Waning Crescent28Sun
29Mon12:138.76:14-0.26:132.56:367:40Waning Crescent29Mon
30Tue12:548.96:58-0.27:012.36:377:39New Moon30Tue
31Wed12:1110.31:309.17:37-0.17:452.06:387:37New Moon31Wed
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 5:47 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 35% 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 Third Quarter (35% 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