Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 1h 32m at 2:46 pm (1.3 ft)
Next high tide : 8:48 pm (9.2 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:46 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:237.59:548.33:412.53:430.26:117:58Third Quarter1Sun
2Mon9:367.710:349.04:381.84:370.36:107:59Waning Crescent2Mon
3Tue10:448.011:139.65:301.05:260.46:098:00Waning Crescent3Tue
4Wed11:478.211:5210.26:180.26:140.76:088:00Waning Crescent4Wed
5Thu12:468.47:06-0.67:011.16:078:01New Moon5Thu
6Fri12:3210.61:448.57:53-1.17:481.56:068:02New Moon6Fri
7Sat1:1310.92:418.58:42-1.58:371.96:058:03New Moon7Sat
8Sun1:5710.93:388.49:31-1.69:292.26:048:04Waxing Crescent8Sun
9Mon2:4210.64:368.310:21-1.510:252.66:038:05Waxing Crescent9Mon
10Tue3:3110.05:368.111:14-1.211:302.86:028:06Waxing Crescent10Tue
11Wed4:249.36:388.112:10-0.86:018:07Waxing Crescent11Wed
12Thu5:238.57:398.112:442.91:10-0.36:008:08First Quarter12Thu
13Fri6:307.78:368.32:042.82:110.15:598:08First Quarter13Fri
14Sat7:457.19:268.53:182.43:100.55:588:09First Quarter14Sat
15Sun9:016.810:078.84:211.94:040.85:588:10Waxing Gibbous15Sun
16Mon10:106.710:439.05:141.44:521.25:578:11Waxing Gibbous16Mon
17Tue11:116.811:149.15:580.95:341.55:568:12Waxing Gibbous17Tue
18Wed12:037.06:380.56:131.85:558:13Waxing Gibbous18Wed
19Thu12:517.17:130.26:492.15:558:13Waxing Gibbous19Thu
20Fri12:119.41:357.27:46-0.17:242.45:548:14Full Moon20Fri
21Sat12:409.52:177.38:18-0.47:582.75:538:15Full Moon21Sat
22Sun1:109.52:587.48:50-0.58:342.95:538:16Full Moon22Sun
23Mon1:439.53:407.49:23-0.79:113.05:528:17Full Moon23Mon
24Tue2:179.44:237.410:00-0.79:523.25:518:17Waning Gibbous24Tue
25Wed2:549.15:087.510:39-0.710:403.35:518:18Waning Gibbous25Wed
26Thu3:378.85:567.611:23-0.611:393.35:508:19Waning Gibbous26Thu
27Fri4:268.36:467.812:12-0.45:508:20Third Quarter27Fri
28Sat5:267.87:358.112:493.21:05-0.15:498:20Third Quarter28Sat
29Sun6:397.38:238.62:062.82:020.25:498:21Third Quarter29Sun
30Mon8:017.09:089.23:182.13:000.55:498:22Third Quarter30Mon
31Tue9:237.09:529.84:191.43:570.95:488:22Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

Show All
What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 5:47 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 35% 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 Third Quarter (35% 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