Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 7h 34m at 2:49 am (1.5 ft)
Next high tide (tomorrow) : 8:00 am (6.0 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:54 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:359.45:197.010:38-0.610:243.66:127:57Waxing Crescent1Fri
2Sat3:119.06:206.911:22-0.411:173.86:117:58Waxing Crescent2Sat
3Sun3:548.57:256.812:13-0.16:107:59Waxing Crescent3Sun
4Mon4:458.08:236.912:303.91:100.16:098:00First Quarter4Mon
5Tue5:477.59:087.11:563.82:100.36:088:00First Quarter5Tue
6Wed6:597.19:417.43:103.43:050.46:078:01First Quarter6Wed
7Thu8:146.810:097.84:092.93:540.66:068:02First Quarter7Thu
8Fri9:266.810:358.34:562.24:360.86:058:03Waxing Gibbous8Fri
9Sat10:316.911:008.85:371.55:141.16:048:04Waxing Gibbous9Sat
10Sun11:327.011:279.46:150.75:511.56:038:05Waxing Gibbous10Sun
11Mon12:307.26:530.06:291.96:028:06Waxing Gibbous11Mon
12Tue1:277.47:31-0.77:072.46:018:07Full Moon12Tue
13Wed12:2910.42:237.68:13-1.37:482.86:008:08Full Moon13Wed
14Thu1:0510.73:207.68:57-1.78:323.25:598:08Full Moon14Thu
15Fri1:4610.84:177.69:45-1.89:223.55:588:09Waning Gibbous15Fri
16Sat2:3310.65:177.510:38-1.810:193.65:588:10Waning Gibbous16Sat
17Sun3:2510.26:187.611:34-1.511:303.75:578:11Waning Gibbous17Sun
18Mon4:269.67:177.712:34-1.25:568:12Third Quarter18Mon
19Tue5:358.78:118.112:583.51:36-0.85:558:13Third Quarter19Tue
20Wed6:537.98:588.62:273.02:36-0.35:558:13Third Quarter20Wed
21Thu8:177.39:409.13:432.23:310.25:548:14Third Quarter21Thu
22Fri9:387.010:179.64:471.44:210.85:538:15Waning Crescent22Fri
23Sat10:536.910:5210.05:400.65:071.45:538:16Waning Crescent23Sat
24Sun12:007.06:270.05:511.95:528:17Waning Crescent24Sun
25Mon1:007.27:09-0.56:332.55:518:17New Moon25Mon
26Tue1:547.37:48-0.87:143.05:518:18New Moon26Tue
27Wed12:2610.22:457.48:25-1.07:563.45:508:19New Moon27Wed
28Thu12:5710.03:337.59:01-1.08:373.65:508:20New Moon28Thu
29Fri1:309.84:197.49:37-0.99:203.85:498:20Waxing Crescent29Fri
30Sat2:069.55:037.310:15-0.810:053.95:498:21Waxing Crescent30Sat
31Sun2:449.15:487.210:55-0.610:553.95:488:22Waxing Crescent31Sun
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 5:24 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 50% 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 Third Quarter (50% 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