Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 2h 44m at 5:00 am (0.6 ft)
Next high tide : 10:40 am (6.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:3510.75:272.46:14-1.26:376:02Full Moon1Wed
2Thu12:128.811:31 AM10.66:181.86:55-0.96:366:03Full Moon2Thu
3Fri12:459.312:2410.27:091.17:33-0.56:356:04Full Moon3Fri
4Sat1:189.71:189.57:580.68:110.26:336:05Full Moon4Sat
5Sun1:5110.02:138.78:480.38:480.96:326:06Waning Gibbous5Sun
6Mon2:2510.13:117.99:390.29:271.76:306:07Waning Gibbous6Mon
7Tue3:0110.04:177.110:320.210:092.56:296:08Waning Gibbous7Tue
8Wed3:399.75:386.511:310.311:003.26:286:09Third Quarter8Wed
9Thu4:249.27:196.412:380.56:266:10Third Quarter9Thu
10Fri5:198.88:506.712:133.71:520.56:256:11Third Quarter10Fri
11Sat6:268.59:497.11:483.83:020.56:236:11Third Quarter11Sat
12Sun8:378.411:297.34:073.75:000.37:227:12Waning Crescent12Sun
13Mon9:418.511:597.55:063.35:460.27:207:13Waning Crescent13Mon
14Tue10:358.65:522.96:240.17:197:14Waning Crescent14Tue
15Wed12:257.711:21 AM8.76:312.56:550.17:177:15Waning Crescent15Wed
16Thu12:477.912:058.77:072.17:240.27:167:16New Moon16Thu
17Fri1:088.212:468.67:401.67:500.47:147:17New Moon17Fri
18Sat1:298.51:288.48:131.28:170.87:137:18New Moon18Sat
19Sun1:528.92:118.18:460.88:441.27:117:19New Moon19Sun
20Mon2:159.22:577.79:210.49:141.77:107:20Waxing Crescent20Mon
21Tue2:429.53:497.310:010.19:452.37:087:21Waxing Crescent21Tue
22Wed3:129.64:496.810:450.010:212.87:077:22Waxing Crescent22Wed
23Thu3:479.66:036.511:38-0.111:053.37:057:23Waxing Crescent23Thu
24Fri4:339.57:346.312:41-0.17:047:23First Quarter24Fri
25Sat5:319.39:016.612:073.71:55-0.27:027:24First Quarter25Sat
26Sun6:469.110:017.11:403.83:11-0.37:017:25First Quarter26Sun
27Mon8:079.010:457.63:173.54:18-0.56:597:26Waxing Gibbous27Mon
28Tue9:239.111:218.24:312.95:12-0.66:587:27Waxing Gibbous28Tue
29Wed10:319.211:558.85:312.25:59-0.56:567:28Waxing Gibbous29Wed
30Thu11:339.26:231.36:41-0.26:557:29Waxing Gibbous30Thu
31Fri12:289.312:319.17:120.67:210.26:537:30Full Moon31Fri
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 7:50 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 77% 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 Waxing Gibbous (77% 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