Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 11:00 pm (3.7 ft)
Next high tide : in 2h 23m at 5:44 pm (7.2 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 - Apr 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:519.08:006.41:02-0.16:527:31First Quarter1Sat
2Sun5:558.89:076.812:473.72:13-0.16:507:32First Quarter2Sun
3Mon7:128.69:577.32:223.53:21-0.26:497:33First Quarter3Mon
4Tue8:318.610:367.93:443.04:21-0.36:477:33Waxing Gibbous4Tue
5Wed9:458.711:128.64:482.35:12-0.36:467:34Waxing Gibbous5Wed
6Thu10:528.811:469.25:431.45:58-0.16:447:35Waxing Gibbous6Thu
7Fri11:548.96:340.56:400.36:437:36Waxing Gibbous7Fri
8Sat12:209.912:538.87:22-0.27:220.86:417:37Full Moon8Sat
9Sun12:5510.31:518.68:09-0.88:041.46:407:38Full Moon9Sun
10Mon1:3110.62:488.38:57-1.18:471.96:387:39Full Moon10Mon
11Tue2:0910.63:467.99:44-1.29:322.56:377:40Waning Gibbous11Tue
12Wed2:4810.44:477.510:33-1.110:212.96:367:41Waning Gibbous12Wed
13Thu3:319.95:537.211:25-0.811:193.36:347:42Waning Gibbous13Thu
14Fri4:199.27:047.112:23-0.46:337:42Third Quarter14Fri
15Sat5:148.58:157.112:323.51:260.06:317:43Third Quarter15Sat
16Sun6:197.89:147.31:593.52:310.26:307:44Third Quarter16Sun
17Mon7:337.49:587.53:173.23:310.46:297:45Third Quarter17Mon
18Tue8:467.110:327.84:202.74:220.66:277:46Waning Crescent18Tue
19Wed9:537.111:008.15:112.15:050.86:267:47Waning Crescent19Wed
20Thu10:517.111:248.45:541.65:421.16:257:48Waning Crescent20Thu
21Fri11:437.211:478.76:321.06:161.46:237:49Waning Crescent21Fri
22Sat12:317.27:060.56:471.76:227:50Waning Crescent22Sat
23Sun12:129.11:187.37:380.17:192.16:217:51New Moon23Sun
24Mon12:389.42:047.38:10-0.37:512.46:207:52New Moon24Mon
25Tue1:069.62:517.38:44-0.68:242.86:187:52New Moon25Tue
26Wed1:379.73:397.29:21-0.89:013.16:177:53Waxing Crescent26Wed
27Thu2:129.84:317.110:02-0.99:423.36:167:54Waxing Crescent27Thu
28Fri2:519.75:277.010:48-0.910:313.56:157:55Waxing Crescent28Fri
29Sat3:379.46:277.011:40-0.911:343.56:147:56Waxing Crescent29Sat
30Sun4:329.07:277.212:38-0.76:127:57First Quarter30Sun
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 8:22 pm — 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