Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:09 pm (3.7 ft)
Next high tide : in 6h 03m at 3:55 pm (7.6 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:468.31:349.48:121.98:470.77:036:51Full Moon1Fri
2Sat2:288.12:009.48:412.39:200.67:046:49Full Moon2Sat
3Sun3:107.82:289.59:122.69:550.57:056:48Waning Gibbous3Sun
4Mon3:567.53:009.49:453.010:350.57:066:46Waning Gibbous4Mon
5Tue4:487.23:379.210:223.311:210.57:076:45Waning Gibbous5Tue
6Wed5:487.04:229.011:083.67:086:43Waning Gibbous6Wed
7Thu6:586.95:188.812:150.612:123.77:096:42Third Quarter7Thu
8Fri8:067.16:258.61:180.61:363.77:096:40Third Quarter8Fri
9Sat9:027.57:408.52:250.52:573.47:106:39Third Quarter9Sat
10Sun9:478.08:538.73:270.54:022.87:116:38Waning Crescent10Sun
11Mon10:258.610:018.94:210.44:572.07:126:36Waning Crescent11Mon
12Tue11:019.311:049.15:090.55:471.27:136:35Waning Crescent12Tue
13Wed11:3610.05:540.76:350.47:146:33Waning Crescent13Wed
14Thu12:049.212:1310.66:381.07:22-0.47:156:32New Moon14Thu
15Fri1:029.212:5111.17:221.48:10-0.97:166:31New Moon15Fri
16Sat2:009.11:3111.38:061.98:59-1.17:176:29New Moon16Sat
17Sun2:588.92:1411.38:532.39:50-1.17:186:28Waxing Crescent17Sun
18Mon3:578.63:0010.99:432.810:43-0.97:196:26Waxing Crescent18Mon
19Tue4:598.33:5110.310:413.111:40-0.67:206:25Waxing Crescent19Tue
20Wed6:058.04:489.611:493.47:216:24First Quarter20Wed
21Thu7:138.05:538.812:42-0.21:123.47:226:23First Quarter21Thu
22Fri8:178.17:068.21:480.22:353.27:236:21First Quarter22Fri
23Sat9:128.48:217.82:520.63:462.77:246:20First Quarter23Sat
24Sun9:568.69:327.73:490.84:442.27:256:19Waxing Gibbous24Sun
25Mon10:338.910:347.74:381.15:321.77:266:18Waxing Gibbous25Mon
26Tue11:039.111:287.75:211.46:131.27:276:16Waxing Gibbous26Tue
27Wed11:309.35:581.76:490.77:286:15Waxing Gibbous27Wed
28Thu12:177.811:56 AM9.56:332.07:230.47:296:14Full Moon28Thu
29Fri1:027.812:229.77:052.47:540.17:306:13Full Moon29Fri
30Sat1:457.812:499.87:382.78:26-0.17:316:12Full Moon30Sat
31Sun1:287.812:189.87:102.97:58-0.26:325:11Full Moon31Sun
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 6:32 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 97% 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 Full Moon (97% 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