Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 6h 01m at 1:14 am (3.3 ft)
Next high tide (tomorrow) : 5:27 am (7.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:47 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:139.22:039.38:441.19:010.26:386:02Waning Gibbous1Mon
2Tue2:479.53:008.59:360.89:400.96:366:03Waning Gibbous2Tue
3Wed3:249.84:067.610:330.510:231.76:356:04Waning Gibbous3Wed
4Thu4:069.95:286.811:390.311:152.56:346:05Third Quarter4Thu
5Fri4:559.87:076.612:530.26:326:06Third Quarter5Fri
6Sat5:569.78:436.912:243.22:110.06:316:07Third Quarter6Sat
7Sun7:059.69:527.51:533.53:23-0.36:296:08Waning Crescent7Sun
8Mon8:159.610:437.93:173.54:24-0.56:286:08Waning Crescent8Mon
9Tue9:199.711:248.34:243.15:15-0.66:266:09Waning Crescent9Tue
10Wed10:169.85:182.75:58-0.66:256:10Waning Crescent10Wed
11Thu12:008.511:06 AM9.76:052.36:37-0.56:236:11New Moon11Thu
12Fri12:328.611:52 AM9.56:481.97:11-0.36:226:12New Moon12Fri
13Sat1:028.712:359.17:271.67:430.16:206:13New Moon13Sat
14Sun1:288.72:178.69:041.39:140.67:197:14New Moon14Sun
15Mon2:528.73:008.19:411.19:441.17:187:15Waxing Crescent15Mon
16Tue3:168.83:447.510:191.010:141.77:167:16Waxing Crescent16Tue
17Wed3:418.84:346.910:590.910:452.37:157:17Waxing Crescent17Wed
18Thu4:098.75:356.411:430.911:212.97:137:18Waxing Crescent18Thu
19Fri4:438.56:576.112:360.97:127:19First Quarter19Fri
20Sat5:268.48:416.112:073.41:400.97:107:20First Quarter20Sat
21Sun6:228.210:036.51:233.82:520.77:087:21First Quarter21Sun
22Mon7:308.210:506.92:593.83:580.47:077:21First Quarter22Mon
23Tue8:408.311:247.34:123.64:530.17:057:22Waxing Gibbous23Tue
24Wed9:448.711:547.75:053.25:39-0.27:047:23Waxing Gibbous24Wed
25Thu10:419.15:492.76:20-0.57:027:24Waxing Gibbous25Thu
26Fri12:238.111:34 AM9.46:312.16:58-0.57:017:25Waxing Gibbous26Fri
27Sat12:528.512:259.57:121.47:36-0.46:597:26Full Moon27Sat
28Sun1:219.01:179.47:560.88:130.06:587:27Full Moon28Sun
29Mon1:539.52:119.18:410.18:510.56:567:28Full Moon29Mon
30Tue2:269.93:088.69:29-0.49:311.26:557:29Waning Gibbous30Tue
31Wed3:0110.24:108.010:20-0.710:141.96:537:30Waning Gibbous31Wed
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 3:20 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 66% 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 (66% 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