Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 7h 40m at 11:05 am (-0.3 ft)
Next high tide : 5:26 pm (8.2 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:136.96:228.31:241.11:413.97:046:50Third Quarter1Sun
2Mon9:247.27:308.32:331.03:053.87:056:48Third Quarter2Mon
3Tue10:137.68:388.53:370.84:073.57:066:47Third Quarter3Tue
4Wed10:508.09:408.94:310.54:573.07:076:45Waning Crescent4Wed
5Thu11:238.410:369.25:170.35:402.57:076:44Waning Crescent5Thu
6Fri11:558.811:309.55:590.16:211.97:086:42Waning Crescent6Fri
7Sat12:269.36:390.17:031.27:096:41New Moon7Sat
8Sun12:229.712:599.87:180.37:460.57:106:39New Moon8Sun
9Mon1:169.61:3310.27:580.78:320.07:116:38New Moon9Mon
10Tue2:119.42:1010.68:391.29:20-0.47:126:37Waxing Crescent10Tue
11Wed3:089.02:4910.79:231.810:12-0.67:136:35Waxing Crescent11Wed
12Thu4:108.63:3310.610:102.411:08-0.67:146:34Waxing Crescent12Thu
13Fri5:188.24:2310.311:053.07:156:32Waxing Crescent13Fri
14Sat6:347.95:229.812:10-0.412:143.47:166:31First Quarter14Sat
15Sun7:528.06:329.31:20-0.21:423.57:176:30First Quarter15Sun
16Mon9:038.37:478.92:320.03:093.37:186:28First Quarter16Mon
17Tue9:598.69:028.73:400.14:202.87:196:27Waxing Gibbous17Tue
18Wed10:459.010:088.74:380.25:172.37:196:25Waxing Gibbous18Wed
19Thu11:239.211:068.75:260.46:051.87:206:24Waxing Gibbous19Thu
20Fri11:579.411:578.66:080.66:471.37:216:23Waxing Gibbous20Fri
21Sat12:269.56:460.97:241.07:226:22Full Moon21Sat
22Sun12:458.412:529.57:201.37:590.77:236:20Full Moon22Sun
23Mon1:308.31:179.57:521.78:320.47:246:19Full Moon23Mon
24Tue2:138.11:419.58:242.29:050.37:256:18Full Moon24Tue
25Wed2:577.82:079.48:562.69:380.27:266:17Waning Gibbous25Wed
26Thu3:437.62:359.39:303.010:140.27:276:15Waning Gibbous26Thu
27Fri4:327.43:089.110:073.410:540.37:286:14Waning Gibbous27Fri
28Sat5:277.23:468.810:513.711:410.47:296:13Waning Gibbous28Sat
29Sun6:297.24:338.411:493.97:306:12Third Quarter29Sun
30Mon7:367.35:328.112:350.51:094.07:316:11Third Quarter30Mon
31Tue8:347.56:447.81:370.52:343.87:326:10Third Quarter31Tue
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 2:15 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 80% 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 (80% 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