Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 42m at 6:03 pm (3.6 ft)
Next high tide : 11:20 pm (11.9 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:146.76:290.25:532.65:488:23Waxing Gibbous1Sat
2Sun1:017.07:05-0.26:332.85:488:24Waxing Gibbous2Sun
3Mon1:447.27:39-0.47:113.05:478:25Full Moon3Mon
4Tue12:219.92:247.38:12-0.67:483.15:478:25Full Moon4Tue
5Wed12:569.93:027.58:45-0.88:263.25:478:26Full Moon5Wed
6Thu1:329.83:417.69:19-0.99:073.25:478:26Full Moon6Thu
7Fri2:109.64:197.79:55-0.99:513.25:468:27Waning Gibbous7Fri
8Sat2:519.35:007.910:34-0.810:433.15:468:27Waning Gibbous8Sat
9Sun3:378.95:418.111:16-0.611:433.05:468:28Waning Gibbous9Sun
10Mon4:298.36:258.412:02-0.35:468:28Third Quarter10Mon
11Tue5:337.67:108.812:522.712:520.25:468:29Third Quarter11Tue
12Wed6:516.97:569.42:062.21:460.75:468:29Third Quarter12Wed
13Thu8:186.68:439.93:171.52:431.35:468:30Third Quarter13Thu
14Fri9:446.69:3010.54:200.73:421.85:468:30Waning Crescent14Fri
15Sat11:017.010:1711.05:16-0.14:402.25:468:30Waning Crescent15Sat
16Sun12:067.46:08-0.85:372.55:468:31Waning Crescent16Sun
17Mon1:047.96:57-1.36:322.65:468:31New Moon17Mon
18Tue1:568.27:45-1.67:272.75:478:31New Moon18Tue
19Wed12:4211.42:458.48:31-1.68:212.85:478:32New Moon19Wed
20Thu1:3011.13:318.69:16-1.59:152.85:478:32Waxing Crescent20Thu
21Fri2:1810.54:168.710:00-1.210:122.85:478:32Waxing Crescent21Fri
22Sat3:069.75:008.710:44-0.811:112.75:478:32Waxing Crescent22Sat
23Sun3:568.95:448.711:27-0.35:488:32Waxing Crescent23Sun
24Mon4:497.96:278.812:142.612:110.35:488:33First Quarter24Mon
25Tue5:507.07:108.91:222.412:581.05:488:33First Quarter25Tue
26Wed7:036.37:529.02:302.11:481.65:498:33First Quarter26Wed
27Thu8:295.98:349.23:331.72:422.15:498:33First Quarter27Thu
28Fri9:556.09:159.44:301.23:372.65:508:33Waxing Gibbous28Fri
29Sat11:066.39:569.75:180.84:302.95:508:33Waxing Gibbous29Sat
30Sun12:016.76:010.35:183.15:508:33Waxing Gibbous30Sun
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 8:41 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 4% 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 Crescent (4% 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