Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 23m at 1:57 pm (0.7 ft)
Next high tide : 8:12 pm (8.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:549.63:197.79:21-0.69:132.46:127:57Full Moon1Tue
2Wed2:249.44:097.410:00-0.69:542.86:117:58Waning Gibbous2Wed
3Thu2:569.15:017.210:40-0.410:393.16:107:59Waning Gibbous3Thu
4Fri3:328.75:577.111:23-0.211:323.46:098:00Waning Gibbous4Fri
5Sat4:128.26:577.012:110.06:078:01Waning Gibbous5Sat
6Sun5:027.77:577.112:413.51:050.26:068:02Third Quarter6Sun
7Mon6:027.38:487.32:023.52:030.46:058:03Third Quarter7Mon
8Tue7:136.99:307.63:153.23:010.56:048:04Third Quarter8Tue
9Wed8:276.810:058.04:132.73:530.66:038:04Third Quarter9Wed
10Thu9:356.910:378.45:002.14:390.76:028:05Waning Crescent10Thu
11Fri10:377.111:078.95:401.55:210.96:028:06Waning Crescent11Fri
12Sat11:347.311:389.46:180.96:011.16:018:07Waning Crescent12Sat
13Sun12:287.66:550.26:411.46:008:08Waning Crescent13Sun
14Mon12:119.91:217.87:34-0.47:211.85:598:09New Moon14Mon
15Tue12:4610.22:157.98:15-1.08:042.15:588:10New Moon15Tue
16Wed1:2310.53:098.08:59-1.48:492.55:578:11New Moon16Wed
17Thu2:0410.64:058.09:46-1.69:392.85:568:11Waxing Crescent17Thu
18Fri2:5010.45:038.010:36-1.610:363.05:568:12Waxing Crescent18Fri
19Sat3:4010.06:038.011:31-1.411:443.25:558:13Waxing Crescent19Sat
20Sun4:389.47:058.112:30-1.05:548:14First Quarter20Sun
21Mon5:458.68:048.41:053.11:32-0.65:548:15First Quarter21Mon
22Tue7:027.98:578.82:302.72:36-0.25:538:16First Quarter22Tue
23Wed8:237.49:449.33:442.13:350.25:528:16First Quarter23Wed
24Thu9:417.210:279.74:471.44:290.75:528:17Waxing Gibbous24Thu
25Fri10:527.211:059.95:410.75:181.15:518:18Waxing Gibbous25Fri
26Sat11:557.311:4010.16:280.26:031.65:518:19Waxing Gibbous26Sat
27Sun12:517.47:11-0.36:462.05:508:19Full Moon27Sun
28Mon12:1410.11:437.57:50-0.67:272.45:508:20Full Moon28Mon
29Tue12:4610.02:327.68:26-0.78:072.85:498:21Full Moon29Tue
30Wed1:179.93:177.69:02-0.88:483.15:498:21Full Moon30Wed
31Thu1:499.64:017.59:38-0.89:293.35:488:22Waning 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 5:04 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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