Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 2:46 pm (1.3 ft)
Next high tide : in 1h 06m at 8:07 am (6.2 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:349.37:017.612:24-0.86:117:58First Quarter1Thu
2Fri5:378.88:077.812:453.21:29-0.66:107:59First Quarter2Fri
3Sat6:528.39:058.22:123.02:37-0.36:098:00First Quarter3Sat
4Sun8:127.99:548.73:312.53:40-0.16:088:01First Quarter4Sun
5Mon9:297.810:389.24:371.84:360.16:078:02Waxing Gibbous5Mon
6Tue10:397.911:179.65:331.15:260.46:068:02Waxing Gibbous6Tue
7Wed11:417.911:549.96:220.46:120.86:058:03Waxing Gibbous7Wed
8Thu12:397.97:08-0.16:551.26:048:04Full Moon8Thu
9Fri12:2910.11:327.97:50-0.57:371.76:038:05Full Moon9Fri
10Sat1:0310.12:237.98:30-0.78:182.16:028:06Full Moon10Sat
11Sun1:369.93:137.89:10-0.89:002.56:018:07Full Moon11Sun
12Mon2:109.64:027.69:49-0.89:432.96:008:08Waning Gibbous12Mon
13Tue2:449.34:527.410:28-0.610:303.25:598:09Waning Gibbous13Tue
14Wed3:208.85:447.311:10-0.411:243.45:588:09Waning Gibbous14Wed
15Thu4:018.36:387.211:56-0.25:588:10Waning Gibbous15Thu
16Fri4:497.87:327.312:303.512:460.15:578:11Third Quarter16Fri
17Sat5:477.28:217.51:473.41:410.45:568:12Third Quarter17Sat
18Sun6:566.89:037.82:593.12:360.65:558:13Third Quarter18Sun
19Mon8:106.59:408.23:582.63:290.85:558:14Third Quarter19Mon
20Tue9:226.510:138.64:472.04:161.05:548:14Waning Crescent20Tue
21Wed10:276.710:459.15:291.45:001.25:538:15Waning Crescent21Wed
22Thu11:267.011:189.56:070.85:411.55:538:16Waning Crescent22Thu
23Fri12:217.36:440.16:221.85:528:17Waning Crescent23Fri
24Sat1:147.67:23-0.57:042.15:518:18New Moon24Sat
25Sun12:2710.42:067.88:03-1.07:482.45:518:18New Moon25Sun
26Mon1:0610.62:588.08:46-1.48:342.75:508:19New Moon26Mon
27Tue1:4810.73:518.19:31-1.69:242.95:508:20Waxing Crescent27Tue
28Wed2:3410.54:458.110:20-1.610:203.05:498:21Waxing Crescent28Wed
29Thu3:2410.15:418.211:12-1.411:253.15:498:21Waxing Crescent29Thu
30Fri4:209.56:388.412:07-1.15:498:22First Quarter30Fri
31Sat5:258.77:348.712:423.01:06-0.65:488:23First Quarter31Sat
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 11:26 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 35% 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 Third Quarter (35% 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