Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 15, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 6h 57m at 8:31 am (-2.2 ft)
Next high tide : 2:59 pm (8.0 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:46 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Apr 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:428.09:597.22:533.23:340.36:527:31Third Quarter1Fri
2Sat8:528.210:427.74:022.94:300.16:507:32Waning Crescent2Sat
3Sun9:578.611:208.34:582.45:20-0.16:497:32Waning Crescent3Sun
4Mon10:578.911:568.95:471.76:06-0.26:477:33Waning Crescent4Mon
5Tue11:539.26:331.06:50-0.16:467:34Waning Crescent5Tue
6Wed12:329.412:499.37:200.37:330.26:447:35New Moon6Wed
7Thu1:099.91:449.28:07-0.38:160.56:437:36New Moon7Thu
8Fri1:4810.32:409.08:55-0.79:011.06:417:37New Moon8Fri
9Sat2:2910.53:378.69:45-1.09:481.56:407:38Waxing Crescent9Sat
10Sun3:1210.44:398.210:38-1.010:412.16:397:39Waxing Crescent10Sun
11Mon3:5910.15:457.811:35-0.811:412.56:377:40Waxing Crescent11Mon
12Tue4:529.56:587.612:38-0.56:367:41First Quarter12Tue
13Wed5:538.98:127.712:562.81:46-0.26:347:41First Quarter13Wed
14Thu7:038.39:177.92:202.92:550.16:337:42First Quarter14Thu
15Fri8:177.910:118.23:372.63:590.26:317:43First Quarter15Fri
16Sat9:287.810:548.54:422.24:530.46:307:44Waxing Gibbous16Sat
17Sun10:317.711:318.75:351.75:390.56:297:45Waxing Gibbous17Sun
18Mon11:257.86:191.36:180.86:277:46Waxing Gibbous18Mon
19Tue12:028.812:137.86:590.96:541.06:267:47Waxing Gibbous19Tue
20Wed12:308.912:577.77:340.67:271.36:257:48Full Moon20Wed
21Thu12:569.01:397.68:070.37:581.76:237:49Full Moon21Thu
22Fri1:219.02:207.58:390.18:292.06:227:50Full Moon22Fri
23Sat1:489.13:027.49:11-0.19:012.36:217:51Full Moon23Sat
24Sun2:169.03:447.29:44-0.29:352.66:207:51Waning Gibbous24Sun
25Mon2:478.94:317.110:20-0.210:132.96:187:52Waning Gibbous25Mon
26Tue3:228.75:226.911:01-0.210:573.16:177:53Waning Gibbous26Tue
27Wed4:028.56:206.911:48-0.111:543.36:167:54Waning Gibbous27Wed
28Thu4:528.17:217.012:420.06:157:55Third Quarter28Thu
29Fri5:537.88:207.31:093.31:420.16:147:56Third Quarter29Fri
30Sat7:057.69:107.82:313.12:440.16:127:57Third Quarter30Sat
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 11:45 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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