Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 12:33 am (2.7 ft)
Next high tide : in 5h 47m at 5:58 pm (8.5 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Dec 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:337.61:299.78:314.09:32-0.77:044:50Waxing Crescent1Fri
2Sat4:167.62:139.39:203.910:15-0.67:044:50Waxing Crescent2Sat
3Sun4:597.73:038.810:203.811:02-0.37:054:50Waxing Crescent3Sun
4Mon5:427.94:048.111:353.611:510.07:064:50First Quarter4Mon
5Tue6:238.45:207.412:553.07:074:49First Quarter5Tue
6Wed7:028.96:496.812:430.62:092.27:084:49First Quarter6Wed
7Thu7:429.68:216.71:371.23:111.37:094:49Waxing Gibbous7Thu
8Fri8:2110.39:457.02:311.84:060.37:104:50Waxing Gibbous8Fri
9Sat9:0211.010:567.43:252.44:57-0.67:114:50Waxing Gibbous9Sat
10Sun9:4511.511:587.94:192.95:45-1.37:114:50Waxing Gibbous10Sun
11Mon10:3011.85:123.26:33-1.77:124:50Full Moon11Mon
12Tue12:548.211:17 AM11.96:053.47:21-1.97:134:50Full Moon12Tue
13Wed1:458.412:0611.76:583.58:08-1.97:144:50Full Moon13Wed
14Thu2:348.412:5511.37:533.58:55-1.67:144:51Waning Gibbous14Thu
15Fri3:228.41:4410.58:503.59:42-1.27:154:51Waning Gibbous15Fri
16Sat4:088.42:359.69:513.410:27-0.67:164:51Waning Gibbous16Sat
17Sun4:548.53:298.610:583.211:130.07:164:52Waning Gibbous17Sun
18Mon5:388.54:297.512:113.07:174:52Third Quarter18Mon
19Tue6:218.75:446.51:252.57:174:52Third Quarter19Tue
20Wed7:008.97:156.012:471.42:322.07:184:53Third Quarter20Wed
21Thu7:389.18:526.01:382.13:301.47:184:53Third Quarter21Thu
22Fri8:139.410:136.32:302.74:190.87:194:54Waning Crescent22Fri
23Sat8:499.611:146.83:233.25:010.37:194:54Waning Crescent23Sat
24Sun9:259.94:133.55:39-0.17:204:55Waning Crescent24Sun
25Mon12:027.210:02 AM10.14:593.76:15-0.47:204:55Waning Crescent25Mon
26Tue12:437.510:40 AM10.35:413.96:50-0.77:214:56New Moon26Tue
27Wed1:197.611:19 AM10.46:213.97:24-0.97:214:57New Moon27Wed
28Thu1:537.811:58 AM10.46:593.87:59-1.07:214:57New Moon28Thu
29Fri2:277.812:3810.37:383.78:34-1.17:214:58New Moon29Fri
30Sat3:018.01:1910.08:213.69:11-1.07:224:59Waxing Crescent30Sat
31Sun3:348.12:049.59:103.49:45-0.77:225:00Waxing Crescent31Sun
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 9:15 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 71% 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 Waning Gibbous (71% 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