Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 4:04 am (1.2 ft)
Next high tide : in 4h 41m at 8:22 pm (9.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jul 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:287.76:338.112:123.212:100.45:508:32First Quarter1Sat
2Sun5:246.97:068.41:172.912:481.05:518:32First Quarter2Sun
3Mon6:356.17:398.72:232.51:281.75:518:32First Quarter3Mon
4Tue8:065.68:159.13:252.02:132.35:528:32First Quarter4Tue
5Wed9:485.78:539.54:201.33:052.95:528:32Waxing Gibbous5Wed
6Thu11:136.19:339.95:070.74:003.45:538:32Waxing Gibbous6Thu
7Fri12:156.75:510.14:543.75:548:31Waxing Gibbous7Fri
8Sat1:057.16:33-0.55:463.85:548:31Waxing Gibbous8Sat
9Sun1:477.57:15-1.06:353.95:558:31Full Moon9Sun
10Mon2:277.87:57-1.37:243.85:558:30Full Moon10Mon
11Tue12:3511.33:058.08:40-1.68:143.65:568:30Full Moon11Tue
12Wed1:2411.33:438.29:22-1.69:073.35:578:30Waning Gibbous12Wed
13Thu2:1410.94:208.510:05-1.510:043.05:578:29Waning Gibbous13Thu
14Fri3:0710.34:598.910:47-1.011:072.65:588:29Waning Gibbous14Fri
15Sat4:059.35:389.311:30-0.45:598:28Waning Gibbous15Sat
16Sun5:118.26:209.812:172.212:150.45:598:28Third Quarter16Sun
17Mon6:307.17:0410.21:321.71:031.46:008:27Third Quarter17Mon
18Tue8:056.47:5110.52:481.11:572.26:018:27Third Quarter18Tue
19Wed9:466.58:4210.73:580.53:003.06:028:26Waning Crescent19Wed
20Thu11:106.99:3410.95:01-0.14:073.46:028:25Waning Crescent20Thu
21Fri12:147.55:56-0.55:113.76:038:25Waning Crescent21Fri
22Sat1:047.96:44-0.76:093.76:048:24Waning Crescent22Sat
23Sun1:488.17:28-0.87:003.76:058:23New Moon23Sun
24Mon12:0010.72:268.28:07-0.87:463.56:058:23New Moon24Mon
25Tue12:4310.53:018.28:44-0.78:293.46:068:22New Moon25Tue
26Wed1:2310.23:328.29:17-0.69:113.26:078:21New Moon26Wed
27Thu2:029.74:008.29:48-0.39:533.16:088:20Waxing Crescent27Thu
28Fri2:409.24:268.310:180.110:362.96:098:19Waxing Crescent28Fri
29Sat3:208.54:528.410:480.511:242.76:098:18Waxing Crescent29Sat
30Sun4:047.75:208.611:171.16:108:18Waxing Crescent30Sun
31Mon4:576.95:508.912:172.411:48 AM1.86:118:17First Quarter31Mon
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 12:13 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 59% 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 First Quarter (59% 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