Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 4h 23m at 3:26 am (1.2 ft)
Next high tide : 9:09 am (6.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:3110.42:317.78:21-1.07:563.05:488:24New Moon1Mon
2Tue1:0510.23:207.78:59-1.08:403.35:488:24New Moon2Tue
3Wed1:3810.04:077.79:36-1.09:243.55:478:25Waxing Crescent3Wed
4Thu2:149.64:547.610:15-0.810:113.75:478:25Waxing Crescent4Thu
5Fri2:519.25:407.510:55-0.611:043.75:478:26Waxing Crescent5Fri
6Sat3:328.76:257.511:37-0.35:478:27Waxing Crescent6Sat
7Sun4:188.17:107.612:053.712:220.05:468:27First Quarter7Sun
8Mon5:127.47:517.81:163.51:100.35:468:28First Quarter8Mon
9Tue6:166.88:288.12:273.21:590.65:468:28First Quarter9Tue
10Wed7:326.49:038.53:292.72:481.05:468:29First Quarter10Wed
11Thu8:526.29:369.04:212.13:351.45:468:29First Quarter11Thu
12Fri10:096.310:099.55:061.34:211.85:468:29Waxing Gibbous12Fri
13Sat11:186.610:4310.05:480.65:062.25:468:30Waxing Gibbous13Sat
14Sun12:207.06:27-0.15:512.65:468:30Waxing Gibbous14Sun
15Mon1:167.47:08-0.86:362.95:468:31Full Moon15Mon
16Tue2:097.77:51-1.37:233.25:468:31Full Moon16Tue
17Wed12:4011.23:008.08:36-1.78:133.35:478:31Full Moon17Wed
18Thu1:2611.23:508.19:23-1.99:063.45:478:31Waning Gibbous18Thu
19Fri2:1511.14:408.310:12-1.810:053.45:478:32Waning Gibbous19Fri
20Sat3:0810.65:298.411:02-1.611:113.35:478:32Waning Gibbous20Sat
21Sun4:069.86:198.711:54-1.15:478:32Waning Gibbous21Sun
22Mon5:108.97:099.012:273.012:48-0.65:488:32Third Quarter22Mon
23Tue6:247.97:589.41:482.61:430.15:488:32Third Quarter23Tue
24Wed7:487.18:449.83:061.92:390.85:488:33Third Quarter24Wed
25Thu9:166.79:2810.24:141.23:341.55:498:33Waning Crescent25Thu
26Fri10:386.810:1010.55:120.54:282.15:498:33Waning Crescent26Fri
27Sat11:487.010:4910.66:030.05:192.65:498:33Waning Crescent27Sat
28Sun12:487.46:48-0.46:093.05:508:33Waning Crescent28Sun
29Mon1:407.77:28-0.76:563.35:508:33New Moon29Mon
30Tue12:0410.52:267.88:06-0.87:403.55:518:33New Moon30Tue
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 6:17 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 53% 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 (53% 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