Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, June 5, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 12:02 am (3.6 ft)
Next high tide : in 6h 30m at 6:23 pm (7.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:468.810:467.53:043.84:170.26:386:01Waxing Gibbous1Wed
2Thu8:478.911:237.74:083.65:050.06:376:02Waxing Gibbous2Thu
3Fri9:399.111:537.84:583.35:44-0.16:366:03Waxing Gibbous3Fri
4Sat10:259.25:393.06:18-0.26:346:04Waxing Gibbous4Sat
5Sun12:197.911:06 AM9.36:152.76:47-0.26:336:05Full Moon5Sun
6Mon12:438.011:45 AM9.26:492.37:14-0.16:316:06Full Moon6Mon
7Tue1:058.212:249.07:212.07:400.16:306:07Full Moon7Tue
8Wed1:278.41:038.67:551.68:050.56:296:08Full Moon8Wed
9Thu1:498.71:448.28:301.38:320.96:276:09Waning Gibbous9Thu
10Fri2:138.92:307.69:081.09:011.56:266:10Waning Gibbous10Fri
11Sat2:409.13:247.09:520.79:332.16:246:11Waning Gibbous11Sat
12Sun4:109.35:336.511:420.511:102.87:237:12Waning Gibbous12Sun
13Mon4:489.37:066.112:430.47:217:13Third Quarter13Mon
14Tue5:389.38:566.31:550.27:207:14Third Quarter14Tue
15Wed6:439.210:156.81:153.83:13-0.17:187:15Third Quarter15Wed
16Thu8:019.311:057.32:573.94:23-0.57:177:16Third Quarter16Thu
17Fri9:169.611:447.84:203.55:22-0.87:157:16Waning Crescent17Fri
18Sat10:249.95:243.06:12-1.07:147:17Waning Crescent18Sat
19Sun12:198.311:25 AM10.16:192.36:57-1.07:127:18Waning Crescent19Sun
20Mon12:538.812:2110.17:091.57:38-0.77:117:19New Moon20Mon
21Tue1:259.21:169.87:570.98:17-0.37:097:20New Moon21Tue
22Wed1:589.62:109.28:450.48:550.47:087:21New Moon22Wed
23Thu2:309.93:058.59:330.09:331.17:067:22Waxing Crescent23Thu
24Fri3:0210.04:037.810:21-0.210:121.97:057:23Waxing Crescent24Fri
25Sat3:369.85:077.211:11-0.210:542.67:037:24Waxing Crescent25Sat
26Sun4:129.56:236.712:050.07:027:25Waxing Crescent26Sun
27Mon4:539.07:566.61:060.27:007:26First Quarter27Mon
28Tue5:458.59:246.912:583.72:170.46:597:26First Quarter28Tue
29Wed6:508.110:247.22:323.83:290.46:577:27First Quarter29Wed
30Thu8:057.911:057.43:523.64:310.36:567:28First Quarter30Thu
31Fri9:147.911:377.64:513.35:200.26:547:29Waxing Gibbous31Fri
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 9:12 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 75% 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 (75% 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