Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 11:05 am (-0.3 ft)
Next high tide : in 1h 53m at 3:22 am (8.8 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:037.66:088.812:172.512:101.26:138:15Third Quarter1Tue
2Wed6:076.86:488.91:202.312:551.96:148:14Third Quarter2Wed
3Thu7:306.37:309.02:272.11:472.56:158:13Third Quarter3Thu
4Fri9:056.28:169.23:321.72:473.06:158:12Third Quarter4Fri
5Sat10:296.59:049.44:291.33:493.36:168:11Waning Crescent5Sat
6Sun11:297.09:509.75:180.84:453.56:178:10Waning Crescent6Sun
7Mon12:147.46:010.45:343.56:188:09Waning Crescent7Mon
8Tue12:527.76:390.06:183.46:198:07Waning Crescent8Tue
9Wed1:278.07:16-0.36:593.36:208:06New Moon9Wed
10Thu12:0310.62:018.27:51-0.57:393.16:208:05New Moon10Thu
11Fri12:4610.72:348.58:27-0.78:202.86:218:04New Moon11Fri
12Sat1:3010.63:088.79:03-0.69:052.56:228:03New Moon12Sat
13Sun2:1610.33:429.09:41-0.49:532.26:238:02Waxing Crescent13Sun
14Mon3:059.84:199.310:200.010:471.96:248:00Waxing Crescent14Mon
15Tue3:599.04:589.611:020.511:471.66:257:59Waxing Crescent15Tue
16Wed5:028.25:429.911:471.36:267:58First Quarter16Wed
17Thu6:197.46:3110.112:551.312:402.06:267:56First Quarter17Thu
18Fri7:507.07:2710.32:091.01:432.66:277:55First Quarter18Fri
19Sat9:247.18:2710.53:230.52:563.16:287:54First Quarter19Sat
20Sun10:407.59:2710.74:300.14:093.26:297:53Waxing Gibbous20Sun
21Mon11:398.010:2510.95:28-0.35:133.26:307:51Waxing Gibbous21Mon
22Tue12:278.46:19-0.56:103.06:317:50Waxing Gibbous22Tue
23Wed1:098.77:05-0.67:002.86:317:48Full Moon23Wed
24Thu12:0910.81:488.97:46-0.67:472.56:327:47Full Moon24Thu
25Fri12:5610.52:238.98:25-0.48:312.36:337:46Full Moon25Fri
26Sat1:4010.12:568.99:01-0.19:142.16:347:44Full Moon26Sat
27Sun2:239.63:268.99:360.39:562.06:357:43Waning Gibbous27Sun
28Mon3:078.93:568.910:110.810:401.96:367:41Waning Gibbous28Mon
29Tue3:538.24:268.910:461.411:271.96:367:40Waning Gibbous29Tue
30Wed4:447.54:598.811:232.06:377:38Waning Gibbous30Wed
31Thu5:466.95:388.812:201.812:062.66:387:37Third Quarter31Thu
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 7:13 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 80% 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 Waning Gibbous (80% 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