Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 27m at 11:31 pm (3.1 ft)
Next high tide : 4:09 am (8.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:069.07:236.31:110.96:386:02First Quarter1Fri
2Sat5:578.78:596.612:453.32:220.86:366:03First Quarter2Sat
3Sun6:578.610:037.12:073.63:270.66:356:04First Quarter3Sun
4Mon7:598.610:477.43:213.64:210.36:336:05Waxing Gibbous4Mon
5Tue8:568.811:227.74:183.45:060.16:326:06Waxing Gibbous5Tue
6Wed9:479.011:517.85:043.15:44-0.16:316:07Waxing Gibbous6Wed
7Thu10:319.25:432.86:18-0.26:296:08Waxing Gibbous7Thu
8Fri12:177.911:13 AM9.36:182.56:48-0.26:286:08Full Moon8Fri
9Sat12:428.111:53 AM9.36:522.27:16-0.16:266:09Full Moon9Sat
10Sun1:068.31:329.18:251.88:440.17:257:10Full Moon10Sun
11Mon2:318.62:148.89:001.59:130.47:237:11Full Moon11Mon
12Tue2:578.82:588.39:381.19:440.97:227:12Waning Gibbous12Tue
13Wed3:249.13:487.810:200.810:171.57:207:13Waning Gibbous13Wed
14Thu3:559.24:477.111:080.610:542.17:197:14Waning Gibbous14Thu
15Fri4:319.36:026.612:040.47:177:15Waning Gibbous15Fri
16Sat5:159.37:376.41:100.27:167:16Third Quarter16Sat
17Sun6:129.39:146.612:413.32:250.07:147:17Third Quarter17Sun
18Mon7:239.310:247.22:093.63:40-0.37:137:18Third Quarter18Mon
19Tue8:399.411:147.73:403.54:46-0.67:117:19Waning Crescent19Tue
20Wed9:509.711:548.24:533.15:42-0.87:107:20Waning Crescent20Wed
21Thu10:549.95:512.56:30-0.97:087:21Waning Crescent21Thu
22Fri12:318.611:51 AM10.06:431.97:14-0.87:077:21New Moon22Fri
23Sat1:069.012:459.87:311.37:54-0.57:057:22New Moon23Sat
24Sun1:409.31:389.48:180.88:330.07:047:23New Moon24Sun
25Mon2:129.52:298.99:030.49:100.67:027:24New Moon25Mon
26Tue2:449.63:228.39:480.19:481.37:017:25Waxing Crescent26Tue
27Wed3:169.64:187.610:340.110:272.06:597:26Waxing Crescent27Wed
28Thu3:489.35:207.011:220.111:112.76:587:27Waxing Crescent28Thu
29Fri4:239.06:356.712:140.36:567:28Waxing Crescent29Fri
30Sat5:048.68:066.612:043.31:150.46:557:29First Quarter30Sat
31Sun5:568.19:286.81:193.62:240.56:537:30First Quarter31Sun
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 1:50 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 spring phase. Tonight's moon is 80% 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 maximum.

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 Waning Gibbous (80% illuminated). This places Upper Guadalupe Slough, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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