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 3h 37m at 12:02 am (3.6 ft)
Next high tide (tomorrow) : 4:28 am (7.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:189.51:407.47:51-0.37:302.36:127:57New Moon1Wed
2Thu12:459.52:247.48:24-0.48:062.66:117:58New Moon2Thu
3Fri1:139.53:077.38:57-0.58:412.96:107:59New Moon3Fri
4Sat1:439.43:497.29:30-0.69:173.16:088:00Waxing Crescent4Sat
5Sun2:169.24:327.110:05-0.59:563.36:078:01Waxing Crescent5Sun
6Mon2:519.05:187.010:44-0.410:403.46:068:02Waxing Crescent6Mon
7Tue3:318.66:076.911:26-0.311:353.46:058:03Waxing Crescent7Tue
8Wed4:178.26:577.012:13-0.16:048:04First Quarter8Wed
9Thu5:127.77:457.312:443.41:040.16:038:05First Quarter9Thu
10Fri6:197.28:287.72:013.11:590.46:028:05First Quarter10Fri
11Sat7:356.99:088.23:102.62:530.66:018:06First Quarter11Sat
12Sun8:556.89:458.94:081.83:460.96:018:07Waxing Gibbous12Sun
13Mon10:116.910:229.54:591.04:361.36:008:08Waxing Gibbous13Mon
14Tue11:197.211:0010.25:460.15:241.65:598:09Waxing Gibbous14Tue
15Wed12:227.66:33-0.76:122.05:588:10Waxing Gibbous15Wed
16Thu1:217.97:20-1.47:012.35:578:11Full Moon16Thu
17Fri12:2311.22:178.18:08-1.97:502.65:568:12Full Moon17Fri
18Sat1:0911.33:128.18:57-2.18:432.85:568:12Full Moon18Sat
19Sun1:5811.24:068.29:47-2.09:402.95:558:13Waning Gibbous19Sun
20Mon2:4910.75:018.210:39-1.810:432.95:548:14Waning Gibbous20Mon
21Tue3:4410.05:568.311:32-1.311:552.95:548:15Waning Gibbous21Tue
22Wed4:449.16:508.412:27-0.85:538:16Third Quarter22Wed
23Thu5:508.17:438.61:152.71:23-0.25:528:16Third Quarter23Thu
24Fri7:067.28:338.92:342.32:200.45:528:17Third Quarter24Fri
25Sat8:286.69:179.23:451.73:151.05:518:18Third Quarter25Sat
26Sun9:496.49:569.44:451.14:071.55:518:19Waning Crescent26Sun
27Mon11:006.610:329.65:350.64:552.05:508:19Waning Crescent27Mon
28Tue12:016.86:190.15:402.45:508:20Waning Crescent28Tue
29Wed12:537.06:57-0.26:222.85:498:21Waning Crescent29Wed
30Thu1:407.27:33-0.57:023.05:498:22New Moon30Thu
31Fri12:089.82:227.38:06-0.67:403.25:488:22New Moon31Fri
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 2:15 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 transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 (75% illuminated). This places Upper Guadalupe Slough, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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