Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:26 am (-0.8 ft)
Next high tide : in 1h 43m at 1:24 am (9.9 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:50 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:186.78:328.82:492.22:210.95:488:23Third Quarter1Wed
2Thu8:396.39:139.03:541.73:151.45:488:23Third Quarter2Thu
3Fri9:586.29:519.24:491.24:061.95:478:24Waning Crescent3Fri
4Sat11:066.410:259.45:370.74:542.35:478:25Waning Crescent4Sat
5Sun12:036.76:180.25:382.65:478:25Waning Crescent5Sun
6Mon12:526.96:55-0.16:192.95:478:26Waning Crescent6Mon
7Tue1:367.27:29-0.46:583.05:468:26New Moon7Tue
8Wed12:059.92:167.38:02-0.67:373.25:468:27New Moon8Wed
9Thu12:409.92:547.58:34-0.78:153.25:468:27New Moon9Thu
10Fri1:169.93:317.69:07-0.88:543.35:468:28New Moon10Fri
11Sat1:549.74:087.79:42-0.99:373.25:468:28Waxing Crescent11Sat
12Sun2:349.44:467.910:19-0.810:253.25:468:29Waxing Crescent12Sun
13Mon3:179.05:258.110:58-0.611:213.05:468:29Waxing Crescent13Mon
14Tue4:068.46:068.311:40-0.35:468:30Waxing Crescent14Tue
15Wed5:047.76:498.712:252.812:270.15:468:30First Quarter15Wed
16Thu6:167.07:339.21:372.31:180.75:468:30First Quarter16Thu
17Fri7:416.58:199.82:481.72:131.35:468:31First Quarter17Fri
18Sat9:116.49:0610.43:530.93:121.85:468:31Waxing Gibbous18Sat
19Sun10:336.79:5410.94:520.14:122.25:468:31Waxing Gibbous19Sun
20Mon11:437.210:4311.35:46-0.65:112.65:478:32Waxing Gibbous20Mon
21Tue12:437.76:36-1.26:072.75:478:32Waxing Gibbous21Tue
22Wed1:368.17:25-1.67:032.85:478:32Full Moon22Wed
23Thu12:2211.62:258.48:12-1.77:582.85:478:32Full Moon23Thu
24Fri1:1111.33:128.68:58-1.78:532.85:488:32Full Moon24Fri
25Sat2:0010.83:578.79:43-1.49:502.85:488:32Waning Gibbous25Sat
26Sun2:5010.14:408.810:27-1.010:482.75:488:32Waning Gibbous26Sun
27Mon3:409.25:238.911:10-0.511:512.65:498:33Waning Gibbous27Mon
28Tue4:338.26:068.911:540.15:498:33Waning Gibbous28Tue
29Wed5:327.36:489.012:582.412:390.85:498:33Third Quarter29Wed
30Thu6:436.57:319.12:072.11:281.55:508:33Third Quarter30Thu
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 5:25 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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