Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 4:56 pm (3.2 ft)
Next high tide : in 18m at 11:52 am (6.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Dec 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:317.912:0810.76:573.27:56-1.07:044:50Full Moon1Sat
2Sun2:208.012:4710.77:393.48:39-1.27:054:50Waning Gibbous2Sun
3Mon3:108.01:3010.58:253.69:25-1.27:054:50Waning Gibbous3Mon
4Tue4:028.02:1810.19:193.710:15-1.07:064:50Waning Gibbous4Tue
5Wed4:568.13:149.510:243.711:10-0.77:074:49Waning Gibbous5Wed
6Thu5:508.34:218.711:433.57:084:49Third Quarter6Thu
7Fri6:438.75:398.012:08-0.31:093.07:094:49Third Quarter7Fri
8Sat7:329.27:067.51:080.22:262.37:104:50Third Quarter8Sat
9Sun8:169.78:317.32:080.73:301.47:114:50Waning Crescent9Sun
10Mon8:5810.39:487.43:031.24:260.67:114:50Waning Crescent10Mon
11Tue9:3910.810:557.73:561.75:15-0.27:124:50Waning Crescent11Tue
12Wed10:1711.111:557.94:452.26:00-0.77:134:50Waning Crescent12Wed
13Thu10:5611.25:332.66:43-1.17:144:50New Moon13Thu
14Fri12:508.211:34 AM11.16:203.07:24-1.27:144:51New Moon14Fri
15Sat1:408.312:1210.87:063.38:04-1.27:154:51New Moon15Sat
16Sun2:288.312:5010.47:533.58:44-1.07:164:51Waxing Crescent16Sun
17Mon3:138.21:299.98:403.69:24-0.87:164:52Waxing Crescent17Mon
18Tue3:588.12:099.39:313.710:05-0.47:174:52Waxing Crescent18Tue
19Wed4:428.02:538.610:273.710:480.07:174:52Waxing Crescent19Wed
20Thu5:258.03:427.911:323.611:330.47:184:53First Quarter20Thu
21Fri6:078.04:427.112:443.37:184:53First Quarter21Fri
22Sat6:478.25:556.512:210.91:542.97:194:54First Quarter22Sat
23Sun7:258.67:206.11:111.32:542.47:194:54First Quarter23Sun
24Mon8:019.08:446.22:021.83:441.77:204:55First Quarter24Mon
25Tue8:369.49:566.52:512.24:271.07:204:56Waxing Gibbous25Tue
26Wed9:119.910:566.93:392.65:060.47:214:56Waxing Gibbous26Wed
27Thu9:4810.311:497.44:252.95:43-0.27:214:57Waxing Gibbous27Thu
28Fri10:2510.75:093.16:21-0.77:214:57Full Moon28Fri
29Sat12:367.711:06 AM11.05:533.37:00-1.27:214:58Full Moon29Sat
30Sun1:218.011:48 AM11.26:383.47:42-1.57:224:59Full Moon30Sun
31Mon2:068.212:3311.27:253.48:28-1.77:225:00Full Moon31Mon
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 2:24 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 spring phase. Tonight's moon is 85% 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 maximum.

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 (85% illuminated). This places Upper Guadalupe Slough, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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