Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 3:29 am (2.0 ft)
Next high tide : in 3h 33m at 8:12 pm (8.6 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:138.110:268.85:100.75:352.67:036:51Waxing Gibbous1Sun
2Mon11:438.511:159.05:500.56:132.27:046:49Waxing Gibbous2Mon
3Tue12:138.96:270.56:491.77:056:48Waxing Gibbous3Tue
4Wed12:029.212:439.37:020.67:261.27:066:46Full Moon4Wed
5Thu12:499.31:149.67:380.78:050.77:076:45Full Moon5Thu
6Fri1:389.21:4710.08:151.08:470.37:086:43Full Moon6Fri
7Sat2:299.02:2210.28:541.49:32-0.17:096:42Waning Gibbous7Sat
8Sun3:238.73:0110.39:361.910:21-0.27:106:40Waning Gibbous8Sun
9Mon4:228.33:4510.210:232.411:16-0.27:116:39Waning Gibbous9Mon
10Tue5:298.04:3710.011:182.97:116:37Waning Gibbous10Tue
11Wed6:437.85:379.612:19-0.112:273.27:126:36Third Quarter11Wed
12Thu7:597.96:489.21:290.01:533.37:136:34Third Quarter12Thu
13Fri9:078.38:049.02:420.13:163.07:146:33Third Quarter13Fri
14Sat10:028.79:179.03:490.14:252.57:156:32Waning Crescent14Sat
15Sun10:489.210:239.04:460.25:222.07:166:30Waning Crescent15Sun
16Mon11:299.511:229.05:360.36:121.47:176:29Waning Crescent16Mon
17Tue12:059.86:200.66:560.97:186:28Waning Crescent17Tue
18Wed12:159.012:399.97:000.97:370.67:196:26New Moon18Wed
19Thu1:058.81:109.97:371.38:160.37:206:25New Moon19Thu
20Fri1:538.61:409.88:141.78:540.27:216:24New Moon20Fri
21Sat2:398.32:099.68:502.29:310.17:226:22Waxing Crescent21Sat
22Sun3:268.02:399.49:272.610:080.27:236:21Waxing Crescent22Sun
23Mon4:157.73:119.110:073.010:490.37:246:20Waxing Crescent23Mon
24Tue5:077.53:478.810:513.411:340.57:256:19Waxing Crescent24Tue
25Wed6:057.34:318.411:473.77:266:17Waxing Crescent25Wed
26Thu7:107.35:267.912:260.61:033.87:276:16First Quarter26Thu
27Fri8:127.46:337.61:250.82:263.67:286:15First Quarter27Fri
28Sat9:047.77:457.52:270.93:343.37:296:14First Quarter28Sat
29Sun9:448.18:547.63:250.94:262.87:306:13First Quarter29Sun
30Mon10:198.59:577.84:150.85:092.27:316:12Waxing Gibbous30Mon
31Tue10:519.010:548.15:000.95:481.67:326:10Waxing Gibbous31Tue
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 11:50 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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