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 : 1:57 pm (0.7 ft)
Next high tide : in 3h 23m at 6:40 am (6.6 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 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:587.25:479.412:320.412:303.47:036:51Third Quarter1Mon
2Tue8:197.46:569.31:420.31:523.57:046:49Third Quarter2Tue
3Wed9:287.88:119.42:550.23:163.37:056:48Third Quarter3Wed
4Thu10:228.39:229.64:020.04:252.97:066:46Waning Crescent4Thu
5Fri11:068.810:279.84:59-0.15:232.27:076:45Waning Crescent5Fri
6Sat11:469.311:279.95:50-0.26:141.67:086:43Waning Crescent6Sat
7Sun12:249.76:350.07:021.07:096:42New Moon7Sun
8Mon12:239.81:0010.07:180.37:490.57:096:41New Moon8Mon
9Tue1:169.61:3610.27:590.78:340.27:106:39New Moon9Tue
10Wed2:099.22:1110.28:401.39:190.07:116:38New Moon10Wed
11Thu3:038.82:4610.19:221.810:050.07:126:36Waxing Crescent11Thu
12Fri3:588.33:229.710:052.410:520.17:136:35Waxing Crescent12Fri
13Sat4:577.94:019.310:533.011:430.37:146:33Waxing Crescent13Sat
14Sun6:037.64:458.811:513.47:156:32First Quarter14Sun
15Mon7:177.45:398.312:390.51:073.77:166:31First Quarter15Mon
16Tue8:307.56:437.91:430.72:303.77:176:29First Quarter16Tue
17Wed9:297.77:547.82:480.83:403.47:186:28First Quarter17Wed
18Thu10:128.09:017.83:470.84:353.07:196:27First Quarter18Thu
19Fri10:468.310:008.04:370.85:202.67:206:25Waxing Gibbous19Fri
20Sat11:158.510:528.25:190.85:592.17:216:24Waxing Gibbous20Sat
21Sun11:428.811:398.35:570.96:341.67:226:23Waxing Gibbous21Sun
22Mon12:089.26:311.07:071.17:236:21Waxing Gibbous22Mon
23Tue12:258.412:369.57:031.27:400.77:246:20Full Moon23Tue
24Wed1:118.41:049.87:371.58:150.27:256:19Full Moon24Wed
25Thu1:588.41:3510.08:111.98:53-0.17:266:18Full Moon25Thu
26Fri2:488.32:0810.28:482.39:34-0.47:276:16Waning Gibbous26Fri
27Sat3:408.12:4610.29:292.710:21-0.57:286:15Waning Gibbous27Sat
28Sun4:397.93:2910.010:163.111:13-0.57:296:14Waning Gibbous28Sun
29Mon5:437.84:209.711:133.47:306:13Waning Gibbous29Mon
30Tue6:527.85:239.212:12-0.412:273.67:316:12Third Quarter30Tue
31Wed8:008.06:378.81:18-0.21:553.57:326:11Third Quarter31Wed
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 10:18 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 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