Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : 5:49 am (0.1 ft)
Next high tide : in 5h 14m at 9:41 pm (9.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:218.411:16 AM9.96:162.66:54-0.66:396:01New Moon1Sat
2Sun12:538.512:009.76:582.37:27-0.46:376:02New Moon2Sun
3Mon1:228.512:419.37:372.07:58-0.16:366:03New Moon3Mon
4Tue1:488.51:218.88:151.88:280.46:346:04New Moon4Tue
5Wed2:128.62:028.28:521.58:570.96:336:05Waxing Crescent5Wed
6Thu2:368.62:467.59:301.49:261.56:326:06Waxing Crescent6Thu
7Fri3:008.73:356.910:121.39:562.16:306:07Waxing Crescent7Fri
8Sat3:288.74:376.310:591.210:302.76:296:08Waxing Crescent8Sat
9Sun4:028.66:045.911:551.111:143.36:276:09First Quarter9Sun
10Mon4:458.57:596.01:021.06:266:10First Quarter10Mon
11Tue5:418.49:246.512:263.72:140.86:246:11First Quarter11Tue
12Wed6:488.510:106.92:033.93:190.46:236:12First Quarter12Wed
13Thu7:558.810:447.33:183.74:120.06:216:13Waxing Gibbous13Thu
14Fri8:579.211:147.74:123.44:58-0.46:206:14Waxing Gibbous14Fri
15Sat9:529.611:448.14:572.95:38-0.76:186:14Waxing Gibbous15Sat
16Sun10:449.95:402.36:17-0.86:176:15Full Moon16Sun
17Mon12:138.511:36 AM10.06:241.76:54-0.76:156:16Full Moon17Mon
18Tue12:439.012:279.97:081.17:32-0.36:146:17Full Moon18Tue
19Wed1:159.41:219.47:550.58:100.26:126:18Full Moon19Wed
20Thu1:489.92:188.88:450.08:491.06:116:19Waning Gibbous20Thu
21Fri2:2410.13:218.09:38-0.39:311.76:096:20Waning Gibbous21Fri
22Sat3:0310.24:337.310:36-0.410:202.56:086:21Waning Gibbous22Sat
23Sun3:4910.05:596.911:41-0.411:213.26:066:22Third Quarter23Sun
24Mon4:449.67:346.912:55-0.36:056:23Third Quarter24Mon
25Tue5:519.28:537.312:483.62:12-0.26:036:24Third Quarter25Tue
26Wed7:078.99:507.82:233.53:22-0.36:026:25Third Quarter26Wed
27Thu8:218.810:338.13:393.24:20-0.36:006:25Waning Crescent27Thu
28Fri9:258.811:108.44:382.75:07-0.35:596:26Waning Crescent28Fri
29Sat10:208.811:418.55:262.25:47-0.25:576:27Waning Crescent29Sat
30Sun11:098.76:071.76:210.15:566:28New Moon30Sun
31Mon12:098.611:53 AM8.56:451.46:520.45:546:29New 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 1:45 am — 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 77% 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 Waxing Gibbous (77% 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