Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:59 am (-0.7 ft)
Next high tide : in 8m at 2:02 am (9.7 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Sep 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:468.24:3310.510:582.16:387:36Waxing Crescent1Tue
2Wed5:597.55:2210.212:090.411:51 AM2.86:397:35First Quarter2Wed
3Thu7:257.16:199.81:170.512:583.36:407:33First Quarter3Thu
4Fri8:547.27:239.52:310.62:213.66:417:32First Quarter4Fri
5Sat10:057.58:309.33:410.63:393.66:427:30First Quarter5Sat
6Sun10:577.89:329.34:410.54:423.36:437:29Waxing Gibbous6Sun
7Mon11:378.110:269.35:300.45:333.06:437:27Waxing Gibbous7Mon
8Tue12:108.26:110.46:162.66:447:26Waxing Gibbous8Tue
9Wed12:378.46:460.46:542.36:457:24Waxing Gibbous9Wed
10Thu1:018.67:160.67:292.06:467:23Full Moon10Thu
11Fri12:379.11:248.87:440.88:031.76:477:21Full Moon11Fri
12Sat1:178.91:469.08:121.18:351.46:477:20Full Moon12Sat
13Sun1:578.62:109.28:391.49:091.26:487:18Full Moon13Sun
14Mon2:398.22:379.49:071.89:451.06:497:17Waning Gibbous14Mon
15Tue3:247.83:069.59:382.310:250.86:507:15Waning Gibbous15Tue
16Wed4:167.43:409.610:112.711:120.76:517:13Waning Gibbous16Wed
17Thu5:177.04:219.510:513.26:527:12Waning Gibbous17Thu
18Fri6:346.75:129.412:080.711:43 AM3.56:527:10Third Quarter18Fri
19Sat7:596.86:169.41:150.612:573.86:537:09Third Quarter19Sat
20Sun9:127.17:299.42:280.42:273.76:547:07Third Quarter20Sun
21Mon10:057.68:439.63:360.23:453.36:557:06Waning Crescent21Mon
22Tue10:478.29:529.84:350.04:482.76:567:04Waning Crescent22Tue
23Wed11:248.810:5510.05:25-0.15:431.96:577:03Waning Crescent23Wed
24Thu11:599.411:5410.06:100.06:341.26:587:01Waning Crescent24Thu
25Fri12:3510.06:530.27:230.56:587:00New Moon25Fri
26Sat12:519.81:1010.57:350.78:11-0.16:596:58New Moon26Sat
27Sun1:489.51:4710.88:161.29:00-0.47:006:57New Moon27Sun
28Mon2:449.12:2510.98:591.89:50-0.57:016:55Waxing Crescent28Mon
29Tue3:438.63:0610.79:432.410:41-0.47:026:53Waxing Crescent29Tue
30Wed4:458.13:5010.210:322.911:36-0.17:036:52Waxing Crescent30Wed
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 6:00 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 93% 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 (93% 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