Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 2h 14m at 11:01 am (-0.6 ft)
Next high tide : 5:44 pm (7.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:099.11:5810.78:301.69:18-0.47:036:51Waxing Crescent1Fri
2Sat3:068.62:3310.69:102.310:05-0.47:046:50Waxing Crescent2Sat
3Sun4:068.13:1010.39:532.910:55-0.27:056:48Waxing Crescent3Sun
4Mon5:107.73:519.810:413.411:490.17:066:47Waxing Crescent4Mon
5Tue6:237.44:399.311:413.87:076:45First Quarter5Tue
6Wed7:447.35:378.712:510.41:024.07:076:44First Quarter6Wed
7Thu8:567.46:468.31:590.62:303.97:086:42First Quarter7Thu
8Fri9:497.67:598.13:060.73:423.67:096:41First Quarter8Fri
9Sat10:277.99:068.14:040.74:373.17:106:39Waxing Gibbous9Sat
10Sun10:568.110:058.14:500.85:222.67:116:38Waxing Gibbous10Sun
11Mon11:218.410:578.25:290.86:022.07:126:36Waxing Gibbous11Mon
12Tue11:438.711:458.26:021.06:371.57:136:35Waxing Gibbous12Tue
13Wed12:069.16:321.37:101.07:146:34Full Moon13Wed
14Thu12:318.212:299.57:021.67:430.67:156:32Full Moon14Thu
15Fri1:188.112:549.87:322.08:160.27:166:31Full Moon15Fri
16Sat2:058.01:2210.18:032.58:53-0.27:176:29Full Moon16Sat
17Sun2:557.91:5310.28:372.99:33-0.47:186:28Waning Gibbous17Sun
18Mon3:497.72:2810.39:143.310:18-0.57:196:27Waning Gibbous18Mon
19Tue4:487.43:1110.19:573.611:11-0.57:196:25Waning Gibbous19Tue
20Wed5:557.34:029.810:503.97:206:24Waning Gibbous20Wed
21Thu7:067.35:069.412:11-0.312:044.07:216:23Third Quarter21Thu
22Fri8:127.66:228.91:19-0.21:393.87:226:22Third Quarter22Fri
23Sat9:048.07:448.62:27-0.13:063.37:236:20Third Quarter23Sat
24Sun9:478.69:048.53:300.14:152.57:246:19Waning Crescent24Sun
25Mon10:259.210:168.54:240.35:121.67:256:18Waning Crescent25Mon
26Tue11:009.811:228.55:110.76:030.77:266:17Waning Crescent26Tue
27Wed11:3410.45:551.16:500.07:276:15Waning Crescent27Wed
28Thu12:238.512:0810.76:371.77:34-0.67:286:14New Moon28Thu
29Fri1:218.412:4210.97:192.28:18-0.97:296:13New Moon29Fri
30Sat2:178.31:1710.88:002.79:00-1.07:306:12New Moon30Sat
31Sun3:128.21:5210.68:443.29:43-0.97:316:11Waxing 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 2:22 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 83% 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 Waning Gibbous (83% 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