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 50m at 2:17 pm (1.4 ft)
Next high tide : 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 - Sep 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:396.57:139.32:351.01:414.16:387:37First Quarter1Fri
2Sat10:466.98:219.63:450.63:164.26:397:35First Quarter2Sat
3Sun11:267.49:2710.14:460.14:273.96:407:34Waxing Gibbous3Sun
4Mon12:007.85:37-0.45:243.56:417:32Waxing Gibbous4Mon
5Tue12:328.26:23-0.76:142.96:417:31Waxing Gibbous5Tue
6Wed1:038.77:05-0.87:032.26:427:29Full Moon6Wed
7Thu12:1810.91:359.27:45-0.77:531.56:437:28Full Moon7Thu
8Fri1:1310.72:079.88:24-0.38:440.96:447:26Full Moon8Fri
9Sat2:0910.12:4110.29:030.39:360.56:457:25Waning Gibbous9Sat
10Sun3:079.43:1710.69:431.110:310.26:467:23Waning Gibbous10Sun
11Mon4:108.53:5710.710:251.911:300.16:467:22Waning Gibbous11Mon
12Tue5:227.84:4110.511:122.76:477:20Third Quarter12Tue
13Wed6:487.35:3310.212:350.112:113.46:487:19Third Quarter13Wed
14Thu8:237.36:369.71:490.21:323.96:497:17Third Quarter14Thu
15Fri9:457.67:479.43:060.33:033.96:507:16Third Quarter15Fri
16Sat10:438.08:589.34:150.24:183.76:507:14Waning Crescent16Sat
17Sun11:268.310:019.35:130.25:163.36:517:13Waning Crescent17Sun
18Mon12:028.45:580.16:032.96:527:11Waning Crescent18Mon
19Tue12:328.56:360.26:432.56:537:09Waning Crescent19Tue
20Wed12:588.67:080.47:202.16:547:08New Moon20Wed
21Thu12:229.11:208.77:370.67:541.76:557:06New Moon21Thu
22Fri1:038.81:408.98:031.08:271.46:557:05New Moon22Fri
23Sat1:438.52:019.18:281.48:591.16:567:03New Moon23Sat
24Sun2:248.12:229.28:531.99:330.96:577:02Waxing Crescent24Sun
25Mon3:087.72:469.49:202.410:090.86:587:00Waxing Crescent25Mon
26Tue3:577.33:139.49:482.910:500.76:596:59Waxing Crescent26Tue
27Wed4:556.93:469.310:193.411:400.67:006:57Waxing Crescent27Wed
28Thu6:106.74:299.210:583.87:016:56First Quarter28Thu
29Fri7:456.65:269.012:400.611:59 AM4.27:016:54First Quarter29Fri
30Sat9:116.96:398.91:520.51:404.37:026:53First Quarter30Sat
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 5:19 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 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