Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 12:33 am (2.7 ft)
Next high tide : in 4h 01m at 5:58 pm (8.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:559.65:327.010:53-0.910:303.66:127:57Waning Gibbous1Thu
2Fri3:399.46:406.911:46-0.911:313.86:117:58Waning Gibbous2Fri
3Sat4:339.07:487.112:47-0.76:107:59Third Quarter3Sat
4Sun5:418.58:467.512:573.81:54-0.66:098:00Third Quarter4Sun
5Mon7:018.29:327.92:323.52:59-0.56:078:01Third Quarter5Mon
6Tue8:247.910:128.53:492.83:57-0.36:068:02Waning Crescent6Tue
7Wed9:427.910:489.24:501.94:490.06:058:03Waning Crescent7Wed
8Thu10:527.911:239.85:441.05:360.46:048:04Waning Crescent8Thu
9Fri11:587.911:5710.36:330.16:200.96:038:05Waning Crescent9Fri
10Sat12:597.97:20-0.67:031.56:028:05New Moon10Sat
11Sun12:3210.61:587.98:05-1.17:462.16:028:06New Moon11Sun
12Mon1:0710.72:557.98:49-1.48:312.66:018:07New Moon12Mon
13Tue1:4310.53:527.89:33-1.49:173.16:008:08Waxing Crescent13Tue
14Wed2:2010.24:507.610:18-1.310:083.55:598:09Waxing Crescent14Wed
15Thu3:009.65:497.511:05-1.011:073.75:588:10Waxing Crescent15Thu
16Fri3:449.06:507.411:55-0.65:578:11Waxing Crescent16Fri
17Sat4:348.37:497.412:183.812:50-0.25:568:12First Quarter17Sat
18Sun5:337.68:397.61:383.61:470.15:568:12First Quarter18Sun
19Mon6:427.09:207.82:533.32:430.45:558:13First Quarter19Mon
20Tue7:586.69:528.13:552.83:340.75:548:14First Quarter20Tue
21Wed9:136.410:208.44:472.24:191.05:548:15Waxing Gibbous21Wed
22Thu10:206.410:468.85:311.64:591.45:538:16Waxing Gibbous22Thu
23Fri11:216.511:129.26:090.95:351.85:528:16Waxing Gibbous23Fri
24Sat12:176.76:450.46:102.25:528:17Waxing Gibbous24Sat
25Sun1:097.07:19-0.26:462.65:518:18Full Moon25Sun
26Mon12:079.92:007.27:53-0.77:222.95:518:19Full Moon26Mon
27Tue12:3910.12:507.48:30-1.18:013.35:508:19Full Moon27Tue
28Wed1:1410.33:407.59:10-1.38:443.55:508:20Full Moon28Wed
29Thu1:5310.34:317.59:54-1.59:313.75:498:21Waning Gibbous29Thu
30Fri2:3710.15:247.510:41-1.510:273.75:498:22Waning Gibbous30Fri
31Sat3:279.86:187.711:33-1.311:363.75:488:22Waning Gibbous31Sat
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 9:15 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 71% 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 Waning Gibbous (71% 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