Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:56 pm (3.2 ft)
Next high tide : in 1m at 11:52 am (6.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:398.37:366.912:44-0.26:127:57First Quarter1Wed
2Thu5:417.98:247.31:093.51:41-0.16:117:58First Quarter2Thu
3Fri6:567.59:067.82:313.12:390.16:107:59First Quarter3Fri
4Sat8:167.39:438.43:392.43:340.46:098:00First Quarter4Sat
5Sun9:357.310:189.14:371.54:250.76:088:01Waxing Gibbous5Sun
6Mon10:487.410:549.95:280.65:131.16:068:02Waxing Gibbous6Mon
7Tue11:557.711:3210.56:17-0.36:001.56:058:03Waxing Gibbous7Tue
8Wed12:577.97:05-1.16:462.06:048:04Full Moon8Wed
9Thu12:1211.01:578.07:53-1.77:342.46:038:05Full Moon9Thu
10Fri12:5411.32:548.18:42-2.08:242.76:038:05Full Moon10Fri
11Sat1:4011.23:518.09:31-2.09:183.06:028:06Waning Gibbous11Sat
12Sun2:2810.84:487.910:23-1.810:173.26:018:07Waning Gibbous12Sun
13Mon3:2010.25:467.911:16-1.411:253.26:008:08Waning Gibbous13Mon
14Tue4:159.46:437.912:11-0.95:598:09Waning Gibbous14Tue
15Wed5:168.47:398.012:433.11:08-0.45:588:10Third Quarter15Wed
16Thu6:267.58:298.22:042.82:050.15:578:11Third Quarter16Thu
17Fri7:436.89:128.53:182.43:000.65:578:11Third Quarter17Fri
18Sat9:046.49:498.84:211.83:511.15:568:12Waning Crescent18Sat
19Sun10:186.410:219.05:131.24:371.65:558:13Waning Crescent19Sun
20Mon11:246.510:519.35:580.65:192.15:548:14Waning Crescent20Mon
21Tue12:206.76:360.15:592.55:548:15Waning Crescent21Tue
22Wed1:106.97:12-0.26:372.85:538:16Waning Crescent22Wed
23Thu1:557.17:45-0.57:133.15:528:16New Moon23Thu
24Fri12:199.72:377.28:17-0.77:503.35:528:17New Moon24Fri
25Sat12:529.83:187.28:50-0.88:273.45:518:18New Moon25Sat
26Sun1:279.73:587.39:25-0.99:063.55:518:19New Moon26Sun
27Mon2:049.64:397.310:02-0.99:483.65:508:19Waxing Crescent27Mon
28Tue2:449.35:217.410:41-0.910:383.55:508:20Waxing Crescent28Tue
29Wed3:288.96:037.511:23-0.711:393.45:498:21Waxing Crescent29Wed
30Thu4:188.46:457.812:09-0.55:498:22First Quarter30Thu
31Fri5:197.77:278.212:503.112:58-0.15:488:22First Quarter31Fri
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 2:24 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 85% 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 Waxing Gibbous (85% 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