Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 12m at 4:04 am (1.2 ft)
Next high tide : 9:11 am (6.0 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jan 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:238.212:4511.57:373.58:43-1.87:225:00Waxing Crescent1Sun
2Mon3:048.41:3711.08:323.39:28-1.67:225:01Waxing Crescent2Mon
3Tue3:468.62:3210.19:323.010:13-1.07:225:02Waxing Crescent3Tue
4Wed4:278.93:329.010:402.710:59-0.37:225:03Waxing Crescent4Wed
5Thu5:109.34:437.811:562.211:460.67:225:04First Quarter5Thu
6Fri5:559.76:096.81:161.77:225:05First Quarter6Fri
7Sat6:4110.17:496.312:381.52:311.07:225:06First Quarter7Sat
8Sun7:2810.49:266.51:362.33:370.47:225:07Waxing Gibbous8Sun
9Mon8:1610.610:427.12:393.04:34-0.27:225:07Waxing Gibbous9Mon
10Tue9:0410.611:407.63:433.45:23-0.67:225:08Waxing Gibbous10Tue
11Wed9:5010.64:423.76:07-0.87:225:09Waxing Gibbous11Wed
12Thu12:277.910:35 AM10.65:353.76:46-0.87:225:10Full Moon12Thu
13Fri1:088.111:16 AM10.56:223.77:23-0.87:215:11Full Moon13Fri
14Sat1:458.111:56 AM10.37:053.67:57-0.87:215:12Full Moon14Sat
15Sun2:188.012:3310.07:453.58:29-0.67:215:13Full Moon15Sun
16Mon2:488.01:109.68:243.38:59-0.47:205:14Waning Gibbous16Mon
17Tue3:168.01:479.09:043.29:29-0.17:205:15Waning Gibbous17Tue
18Wed3:428.12:278.39:483.09:580.47:205:17Waning Gibbous18Wed
19Thu4:098.23:117.510:382.810:290.97:195:18Waning Gibbous19Thu
20Fri4:398.54:066.711:352.511:011.67:195:19Third Quarter20Fri
21Sat5:118.75:215.912:392.27:185:20Third Quarter21Sat
22Sun5:489.07:095.61:471.77:185:21Third Quarter22Sun
23Mon6:319.39:075.912:273.02:501.07:175:22Third Quarter23Mon
24Tue7:219.710:266.51:333.53:470.47:165:23Waning Crescent24Tue
25Wed8:1510.111:187.12:493.94:39-0.37:165:24Waning Crescent25Wed
26Thu9:1010.611:597.63:563.95:27-0.97:155:25Waning Crescent26Thu
27Fri10:0411.14:543.86:12-1.47:145:26Waning Crescent27Fri
28Sat12:368.010:56 AM11.55:463.56:57-1.77:145:27New Moon28Sat
29Sun1:128.311:48 AM11.66:383.17:39-1.87:135:28New Moon29Sun
30Mon1:488.612:4011.37:302.78:21-1.67:125:30New Moon30Mon
31Tue2:238.91:3310.78:232.29:02-1.17:115:31Waxing 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 6:37 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 59% 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 First Quarter (59% 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