Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 3h 07m at 11:00 pm (3.7 ft)
Next high tide (tomorrow) : 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 - Aug 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:097.75:54-0.35:253.66:138:15Waxing Gibbous1Tue
2Wed12:538.06:40-0.56:183.46:138:14Waxing Gibbous2Wed
3Thu1:318.27:21-0.57:053.26:148:13Full Moon3Thu
4Fri12:0510.42:048.37:57-0.57:473.06:158:12Full Moon4Fri
5Sat12:4610.12:338.38:29-0.38:262.86:168:11Full Moon5Sat
6Sun1:259.82:598.48:59-0.19:052.66:178:10Full Moon6Sun
7Mon2:039.33:238.59:270.29:432.46:188:09Waning Gibbous7Mon
8Tue2:428.73:478.79:550.710:232.36:188:08Waning Gibbous8Tue
9Wed3:238.14:128.910:241.211:062.16:198:07Waning Gibbous9Wed
10Thu4:097.44:419.110:531.811:551.96:208:05Waning Gibbous10Thu
11Fri5:056.75:159.211:252.46:218:04Third Quarter11Fri
12Sat6:206.25:569.312:521.712:042.96:228:03Third Quarter12Sat
13Sun8:026.06:469.41:591.512:573.56:238:02Third Quarter13Sun
14Mon9:476.37:459.73:091.12:123.86:248:01Third Quarter14Mon
15Tue10:546.88:4610.04:130.63:323.96:247:59Waning Crescent15Tue
16Wed11:387.29:4610.55:080.14:383.76:257:58Waning Crescent16Wed
17Thu12:157.75:56-0.45:343.46:267:57Waning Crescent17Thu
18Fri12:498.26:40-0.86:262.96:277:55Waning Crescent18Fri
19Sat1:228.67:21-0.97:162.36:287:54New Moon19Sat
20Sun12:3111.21:569.28:01-0.88:071.86:297:53New Moon20Sun
21Mon1:2410.92:309.78:41-0.58:591.26:297:51New Moon21Mon
22Tue2:1910.33:0610.29:200.19:530.86:307:50Waxing Crescent22Tue
23Wed3:179.43:4410.510:010.810:500.66:317:49Waxing Crescent23Wed
24Thu4:198.54:2610.710:441.611:520.46:327:47Waxing Crescent24Thu
25Fri5:317.75:1210.611:322.46:337:46First Quarter25Fri
26Sat6:567.16:0610.41:010.412:313.16:347:45First Quarter26Sat
27Sun8:327.07:0910.12:160.41:483.66:357:43First Quarter27Sun
28Mon9:557.48:169.93:300.33:133.76:357:42First Quarter28Mon
29Tue10:557.89:229.84:360.24:263.66:367:40Waxing Gibbous29Tue
30Wed11:418.110:199.85:310.15:243.36:377:39Waxing Gibbous30Wed
31Thu12:188.36:150.06:132.96:387:37Waxing Gibbous31Thu
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