Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 1:41 am (2.2 ft)
Next high tide : in 3h 31m at 6:33 pm (9.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:53 am
Moon phase : Third Quarter (61% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:059.910:507.83:063.74:27-0.66:376:02Waxing Gibbous1Tue
2Wed9:1210.011:298.24:173.45:19-0.86:366:03Waxing Gibbous2Wed
3Thu10:1110.15:132.96:02-0.86:356:04Waxing Gibbous3Thu
4Fri12:058.511:03 AM10.06:022.46:41-0.76:336:05Full Moon4Fri
5Sat12:378.711:50 AM9.76:472.07:15-0.46:326:06Full Moon5Sat
6Sun1:078.812:359.37:281.67:470.06:306:07Full Moon6Sun
7Mon1:348.91:198.78:081.38:170.56:296:08Full Moon7Mon
8Tue1:588.92:038.08:481.18:461.16:276:09Waning Gibbous8Tue
9Wed2:229.02:507.49:270.99:151.86:266:10Waning Gibbous9Wed
10Thu2:478.93:426.810:090.99:452.56:246:11Waning Gibbous10Thu
11Fri3:148.94:486.210:560.810:183.16:236:12Waning Gibbous11Fri
12Sat3:478.76:225.911:520.911:023.66:216:12Third Quarter12Sat
13Sun5:318.59:266.12:000.97:207:13Third Quarter13Sun
14Mon6:308.310:376.51:234.03:130.77:197:14Third Quarter14Mon
15Tue7:428.311:146.93:124.04:180.47:177:15Third Quarter15Tue
16Wed8:528.511:427.24:243.85:100.17:167:16Waning Crescent16Wed
17Thu9:538.85:153.45:53-0.37:147:17Waning Crescent17Thu
18Fri12:077.510:47 AM9.25:572.96:31-0.57:137:18Waning Crescent18Fri
19Sat12:327.911:38 AM9.46:362.37:06-0.57:117:19Waning Crescent19Sat
20Sun12:588.412:289.57:161.67:40-0.37:107:20New Moon20Sun
21Mon1:248.91:189.37:581.08:150.17:087:21New Moon21Mon
22Tue1:539.42:119.08:420.38:500.67:067:22New Moon22Tue
23Wed2:239.93:078.49:28-0.29:271.37:057:23Waxing Crescent23Wed
24Thu2:5610.24:097.810:18-0.510:072.17:037:24Waxing Crescent24Thu
25Fri3:3410.35:207.211:13-0.610:532.87:027:24Waxing Crescent25Fri
26Sat4:1810.26:446.812:16-0.67:007:25First Quarter26Sat
27Sun5:119.88:186.91:28-0.46:597:26First Quarter27Sun
28Mon6:199.39:367.31:143.72:48-0.46:577:27First Quarter28Mon
29Tue7:389.010:327.72:553.74:01-0.46:567:28First Quarter29Tue
30Wed8:578.811:158.14:173.25:01-0.46:547:29Waxing Gibbous30Wed
31Thu10:068.811:528.55:202.75:50-0.36:537:30Waxing 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 10:07 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 transitional phase. Tonight's moon is 61% 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 (61% 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