Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, June 5, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 1h 52m at 11:00 pm (3.7 ft)
Next high tide : 3:39 am (8.5 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Sep 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:508.46:530.16:542.66:397:36Waxing Gibbous1Fri
2Sat1:178.57:250.27:322.36:407:34Full Moon2Sat
3Sun12:369.41:418.67:540.58:072.06:407:33Full Moon3Sun
4Mon1:159.12:038.88:220.88:411.76:417:31Full Moon4Mon
5Tue1:558.72:259.08:481.29:141.56:427:30Full Moon5Tue
6Wed2:358.32:489.29:151.69:501.36:437:28Waning Gibbous6Wed
7Thu3:187.83:139.39:432.110:281.26:447:27Waning Gibbous7Thu
8Fri4:067.43:439.310:132.611:121.16:447:25Waning Gibbous8Fri
9Sat5:046.94:199.310:463.16:457:24Waning Gibbous9Sat
10Sun6:196.55:049.312:041.111:28 AM3.56:467:22Third Quarter10Sun
11Mon7:536.46:019.21:081.012:313.96:477:21Third Quarter11Mon
12Tue9:196.77:109.32:210.82:014.06:487:19Third Quarter12Tue
13Wed10:157.28:219.53:310.53:253.86:497:18Third Quarter13Wed
14Thu10:547.79:299.94:310.14:303.36:497:16Waning Crescent14Thu
15Fri11:298.210:3110.25:21-0.25:252.76:507:15Waning Crescent15Fri
16Sat12:028.86:05-0.36:161.96:517:13Waning Crescent16Sat
17Sun12:349.46:47-0.27:051.16:527:12New Moon17Sun
18Mon12:2610.31:0810.07:270.17:540.56:537:10New Moon18Mon
19Tue1:2310.01:4310.58:070.68:44-0.16:547:08New Moon19Tue
20Wed2:209.52:2010.98:481.39:35-0.46:547:07Waxing Crescent20Wed
21Thu3:208.92:5911.09:311.910:28-0.46:557:05Waxing Crescent21Thu
22Fri4:248.33:4310.810:172.611:26-0.36:567:04Waxing Crescent22Fri
23Sat5:347.84:3210.311:113.26:577:02First Quarter23Sat
24Sun6:557.55:309.812:30-0.112:213.66:587:01First Quarter24Sun
25Mon8:187.56:379.21:410.21:493.86:596:59First Quarter25Mon
26Tue9:277.87:518.92:540.43:133.66:596:58First Quarter26Tue
27Wed10:208.19:018.73:590.44:213.27:006:56Waxing Gibbous27Wed
28Thu11:008.310:038.74:530.55:152.77:016:55Waxing Gibbous28Thu
29Fri11:338.510:568.75:360.65:592.27:026:53Waxing Gibbous29Fri
30Sat12:008.76:120.76:381.87:036:52Waxing Gibbous30Sat
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 1:19 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 83% 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 (83% 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