Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 18m at 11:41 am (0.2 ft)
Next high tide : 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 - Oct 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:1910.21:099.87:25-0.17:500.87:046:50Full Moon1Tue
2Wed1:149.91:4310.18:050.48:370.47:046:49Full Moon2Wed
3Thu2:099.42:1610.28:451.09:240.17:056:47Waning Gibbous3Thu
4Fri3:058.92:5110.29:251.710:120.07:066:46Waning Gibbous4Fri
5Sat4:038.33:2610.010:082.411:010.17:076:44Waning Gibbous5Sat
6Sun5:087.84:049.610:553.111:550.27:086:43Waning Gibbous6Sun
7Mon6:227.44:499.111:533.67:096:42Third Quarter7Mon
8Tue7:457.45:438.612:570.51:123.97:106:40Third Quarter8Tue
9Wed9:027.66:508.22:050.62:393.97:116:39Third Quarter9Wed
10Thu9:597.88:028.13:130.73:513.77:126:37Third Quarter10Thu
11Fri10:408.19:098.14:120.74:453.27:126:36Waning Crescent11Fri
12Sat11:128.210:078.35:000.65:302.87:136:34Waning Crescent12Sat
13Sun11:398.410:578.45:410.66:082.37:146:33Waning Crescent13Sun
14Mon12:038.76:150.76:431.87:156:32Waning Crescent14Mon
15Tue12:279.06:460.97:161.37:166:30New Moon15Tue
16Wed12:288.512:519.37:151.17:490.97:176:29New Moon16Wed
17Thu1:138.41:169.67:451.58:230.57:186:27New Moon17Thu
18Fri1:598.31:429.88:161.98:590.17:196:26New Moon18Fri
19Sat2:488.12:1110.08:492.49:39-0.27:206:25Waxing Crescent19Sat
20Sun3:417.82:4410.09:252.910:24-0.37:216:23Waxing Crescent20Sun
21Mon4:417.63:249.910:073.311:16-0.47:226:22Waxing Crescent21Mon
22Tue5:507.44:129.710:583.77:236:21Waxing Crescent22Tue
23Wed7:077.45:139.312:16-0.312:104.07:246:20First Quarter23Wed
24Thu8:207.66:299.01:25-0.21:453.97:256:18First Quarter24Thu
25Fri9:198.07:518.82:36-0.23:153.57:266:17First Quarter25Fri
26Sat10:058.69:098.83:42-0.14:232.87:276:16Waxing Gibbous26Sat
27Sun10:449.110:198.94:380.05:202.07:286:15Waxing Gibbous27Sun
28Mon11:209.611:238.95:260.26:101.27:296:14Waxing Gibbous28Mon
29Tue11:5410.16:110.56:570.47:306:13Waxing Gibbous29Tue
30Wed12:228.812:2710.46:521.07:41-0.17:316:11Full Moon30Wed
31Thu1:188.71:0010.67:331.68:24-0.57:326:10Full Moon31Thu
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 2:49 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