Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 28m at 2:58 am (1.8 ft)
Next high tide : 7:38 am (6.4 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 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:0210.53:357.79:06-1.28:413.75:508:32Full Moon1Sun
2Mon1:4410.44:107.99:43-1.29:283.55:518:32Waning Gibbous2Mon
3Tue2:2810.14:458.110:21-1.110:203.35:518:32Waning Gibbous3Tue
4Wed3:159.55:208.411:00-0.811:203.05:528:32Waning Gibbous4Wed
5Thu4:088.75:568.911:41-0.35:528:32Waning Gibbous5Thu
6Fri5:127.86:359.412:282.612:240.45:538:32Third Quarter6Fri
7Sat6:316.87:169.91:412.01:111.25:538:31Third Quarter7Sat
8Sun8:076.38:0110.42:541.22:042.05:548:31Third Quarter8Sun
9Mon9:486.38:5010.94:020.53:042.85:558:31Waning Crescent9Mon
10Tue11:136.89:4111.25:03-0.34:083.35:558:31Waning Crescent10Tue
11Wed12:197.35:58-0.85:123.65:568:30Waning Crescent11Wed
12Thu1:137.86:49-1.26:123.65:578:30New Moon12Thu
13Fri1:598.17:37-1.47:093.65:578:29New Moon13Fri
14Sat12:1611.42:428.38:22-1.48:023.45:588:29New Moon14Sat
15Sun1:0511.13:228.49:04-1.38:533.25:598:28New Moon15Sun
16Mon1:5210.63:598.59:44-1.09:453.15:598:28Waxing Crescent16Mon
17Tue2:379.94:348.510:21-0.610:372.96:008:27Waxing Crescent17Tue
18Wed3:229.05:078.610:57-0.111:322.76:018:27Waxing Crescent18Wed
19Thu4:108.15:408.711:320.66:018:26Waxing Crescent19Thu
20Fri5:057.16:138.812:312.512:081.36:028:26First Quarter20Fri
21Sat6:146.36:479.01:352.212:462.16:038:25First Quarter21Sat
22Sun7:475.87:269.22:411.81:322.86:048:24First Quarter22Sun
23Mon9:425.88:109.43:441.42:303.46:048:24First Quarter23Mon
24Tue11:116.38:589.64:400.93:373.86:058:23Waxing Gibbous24Tue
25Wed12:066.85:290.54:404.06:068:22Waxing Gibbous25Wed
26Thu12:467.26:120.05:334.06:078:21Waxing Gibbous26Thu
27Fri1:207.56:52-0.36:183.96:088:20Waxing Gibbous27Fri
28Sat1:527.77:30-0.77:013.76:088:20Full Moon28Sat
29Sun12:0510.72:227.98:06-0.97:433.46:098:19Full Moon29Sun
30Mon12:4910.82:528.28:41-1.08:273.16:108:18Full Moon30Mon
31Tue1:3410.73:238.69:16-1.09:142.76:118:17Waning Gibbous31Tue
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 5:18 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