Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide (tomorrow) : in 5h 31m at 12:28 am (2.8 ft)
Next high tide (tomorrow) : 5:04 am (8.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:47 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Jun 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:1510.02:337.38:13-0.87:463.35:488:23New Moon1Wed
2Thu12:5210.13:137.58:48-1.08:263.35:488:23New Moon2Thu
3Fri1:3110.13:547.69:25-1.29:103.45:478:24Waxing Crescent3Fri
4Sat2:129.94:357.710:04-1.29:583.35:478:25Waxing Crescent4Sat
5Sun2:569.65:177.810:46-1.110:543.25:478:25Waxing Crescent5Sun
6Mon3:459.16:008.111:30-0.85:478:26Waxing Crescent6Mon
7Tue4:428.36:448.512:003.012:17-0.45:468:26First Quarter7Tue
8Wed5:517.57:289.01:142.61:080.25:468:27First Quarter8Wed
9Thu7:136.88:139.52:291.92:020.85:468:27First Quarter9Thu
10Fri8:436.58:5810.13:381.12:591.55:468:28Waxing Gibbous10Fri
11Sat10:106.69:4410.74:400.33:572.05:468:28Waxing Gibbous11Sat
12Sun11:266.910:3011.15:34-0.54:542.55:468:29Waxing Gibbous12Sun
13Mon12:307.46:25-1.15:502.85:468:29Waxing Gibbous13Mon
14Tue1:267.87:14-1.46:453.05:468:30Full Moon14Tue
15Wed12:0311.32:178.08:00-1.67:383.15:468:30Full Moon15Wed
16Thu12:5011.13:048.28:45-1.68:313.15:468:30Full Moon16Thu
17Fri1:3610.73:488.39:28-1.59:253.15:468:31Waning Gibbous17Fri
18Sat2:2210.24:318.310:10-1.210:193.15:468:31Waning Gibbous18Sat
19Sun3:089.45:128.310:52-0.711:183.05:468:31Waning Gibbous19Sun
20Mon3:568.65:528.411:32-0.25:478:32Waning Gibbous20Mon
21Tue4:477.66:318.412:202.812:140.45:478:32Third Quarter21Tue
22Wed5:476.87:098.61:272.612:571.05:478:32Third Quarter22Wed
23Thu7:026.17:488.82:352.21:441.75:478:32Third Quarter23Thu
24Fri8:315.78:279.13:371.72:352.25:488:32Third Quarter24Fri
25Sat10:005.89:069.44:321.23:292.75:488:32Waning Crescent25Sat
26Sun11:136.29:469.75:190.74:223.15:488:33Waning Crescent26Sun
27Mon12:096.66:010.25:123.35:498:33Waning Crescent27Mon
28Tue12:557.06:39-0.25:583.45:498:33Waning Crescent28Tue
29Wed1:357.37:16-0.66:423.55:498:33New Moon29Wed
30Thu2:137.67:52-0.97:253.45:508:33New Moon30Thu
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 2:46 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 28% 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 Crescent (28% 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