Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 6:31 pm (3.8 ft)
Next high tide : in 5h 17m at 1:36 pm (7.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:429.09:137.21:353.12:570.56:386:02First Quarter1Tue
2Wed7:488.910:077.52:523.13:570.36:366:03Waxing Gibbous2Wed
3Thu8:498.910:487.83:552.94:460.26:356:04Waxing Gibbous3Thu
4Fri9:429.011:228.04:472.65:260.26:346:05Waxing Gibbous4Fri
5Sat10:299.011:518.25:302.36:000.26:326:06Waxing Gibbous5Sat
6Sun11:108.96:092.06:310.36:316:06Full Moon6Sun
7Mon12:178.311:50 AM8.86:441.76:590.56:296:07Full Moon7Mon
8Tue12:418.512:288.67:171.47:260.76:286:08Full Moon8Tue
9Wed1:058.71:078.37:501.27:541.06:266:09Full Moon9Wed
10Thu1:308.91:478.08:231.08:221.36:256:10Waning Gibbous10Thu
11Fri1:579.12:307.68:590.88:531.76:236:11Waning Gibbous11Fri
12Sat2:279.13:197.19:390.79:262.26:226:12Waning Gibbous12Sat
13Sun4:019.15:176.711:260.611:062.67:207:13Waning Gibbous13Sun
14Mon4:429.16:306.412:220.57:197:14Third Quarter14Mon
15Tue5:339.07:556.31:280.47:187:15Third Quarter15Tue
16Wed6:368.99:136.71:103.32:390.27:167:16Third Quarter16Wed
17Thu7:499.010:107.22:383.33:470.07:157:17Third Quarter17Thu
18Fri9:019.210:567.83:562.94:46-0.37:137:18Waning Crescent18Fri
19Sat10:099.411:358.55:002.35:37-0.47:127:19Waning Crescent19Sat
20Sun11:109.75:561.66:24-0.47:107:20Waning Crescent20Sun
21Mon12:139.112:089.86:470.97:08-0.27:097:21New Moon21Mon
22Tue12:509.71:049.67:360.37:510.17:077:21New Moon22Tue
23Wed1:2810.11:599.38:25-0.28:330.67:067:22New Moon23Wed
24Thu2:0610.42:548.99:14-0.59:161.17:047:23Waxing Crescent24Thu
25Fri2:4510.43:518.310:03-0.610:011.77:027:24Waxing Crescent25Fri
26Sat3:2610.24:517.810:55-0.510:512.27:017:25Waxing Crescent26Sat
27Sun4:099.85:587.311:50-0.211:482.76:597:26Waxing Crescent27Sun
28Mon4:589.27:137.012:510.16:587:27First Quarter28Mon
29Tue5:558.68:307.112:593.11:590.36:567:28First Quarter29Tue
30Wed7:018.19:347.32:213.13:080.56:557:29First Quarter30Wed
31Thu8:127.810:237.63:362.94:080.66:537:30First 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 4:03 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 spring phase. Tonight's moon is 96% 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 Waxing Gibbous (96% 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