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 (tomorrow) : in 4h 04m at 12:33 am (2.7 ft)
Next high tide (tomorrow) : 5:07 am (7.2 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 - May 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:527.710:419.24:531.64:490.36:127:57Waning Crescent1Mon
2Tue11:037.811:159.95:450.65:350.86:117:58Waning Crescent2Tue
3Wed12:097.96:33-0.36:191.36:107:59Waning Crescent3Wed
4Thu1:128.07:21-1.17:041.96:088:00New Moon4Thu
5Fri12:2811.02:128.08:09-1.67:502.46:078:01New Moon5Fri
6Sat1:0711.13:118.08:57-1.98:382.86:068:02New Moon6Sat
7Sun1:5011.04:107.99:46-1.89:303.26:058:03Waxing Crescent7Sun
8Mon2:3510.65:107.710:37-1.610:283.46:048:04Waxing Crescent8Mon
9Tue3:259.96:117.611:31-1.211:373.56:038:04Waxing Crescent9Tue
10Wed4:189.17:127.612:28-0.76:028:05First Quarter10Wed
11Thu5:198.28:087.712:573.51:27-0.36:018:06First Quarter11Thu
12Fri6:287.48:567.92:183.22:250.26:018:07First Quarter12Fri
13Sat7:446.89:368.23:302.73:190.66:008:08First Quarter13Sat
14Sun9:026.410:088.54:292.14:061.05:598:09Waxing Gibbous14Sun
15Mon10:146.410:368.85:191.44:481.45:588:10Waxing Gibbous15Mon
16Tue11:186.411:019.16:010.85:261.95:578:11Waxing Gibbous16Tue
17Wed12:146.66:380.36:022.35:568:11Waxing Gibbous17Wed
18Thu1:056.87:13-0.16:372.75:568:12Full Moon18Thu
19Fri1:537.07:45-0.57:113.15:558:13Full Moon19Fri
20Sat12:229.72:387.18:18-0.77:463.45:548:14Full Moon20Sat
21Sun12:549.83:227.28:53-0.98:233.65:548:15Full Moon21Sun
22Mon1:299.84:077.29:30-1.19:023.75:538:15Waning Gibbous22Mon
23Tue2:079.74:537.210:10-1.19:473.75:528:16Waning Gibbous23Tue
24Wed2:499.55:407.210:54-1.110:413.75:528:17Waning Gibbous24Wed
25Thu3:369.16:277.411:42-0.911:483.65:518:18Waning Gibbous25Thu
26Fri4:318.67:137.712:32-0.75:518:19Third Quarter26Fri
27Sat5:387.97:558.11:083.31:25-0.35:508:19Third Quarter27Sat
28Sun6:577.28:358.82:282.72:190.25:508:20Third Quarter28Sun
29Mon8:256.89:149.53:381.83:120.85:498:21Third Quarter29Mon
30Tue9:516.79:5210.24:390.84:041.45:498:21Waning Crescent30Tue
31Wed11:106.910:3210.85:32-0.14:552.05:488:22Waning Crescent31Wed
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 2:50 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 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