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 33m at 1:24 am (9.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:51 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:248.77:387.912:352.91:11-0.46:127:57Third Quarter1Sun
2Mon6:337.98:368.11:592.82:140.06:117:58Third Quarter2Mon
3Tue7:507.39:268.43:162.43:140.46:107:59Third Quarter3Tue
4Wed9:067.010:088.74:211.94:080.86:098:00Waning Crescent4Wed
5Thu10:166.910:448.95:161.34:561.16:088:01Waning Crescent5Thu
6Fri11:177.011:159.16:010.85:381.56:078:02Waning Crescent6Fri
7Sat12:107.16:410.46:171.86:068:03Waning Crescent7Sat
8Sun12:587.27:170.06:532.26:058:03New Moon8Sun
9Mon12:129.41:427.37:50-0.27:282.46:048:04New Moon9Mon
10Tue12:409.42:247.38:22-0.48:032.76:038:05New Moon10Tue
11Wed1:109.53:057.38:53-0.58:382.96:028:06New Moon11Wed
12Thu1:419.43:467.29:26-0.69:143.16:018:07Waxing Crescent12Thu
13Fri2:169.34:287.210:02-0.69:543.26:008:08Waxing Crescent13Fri
14Sat2:539.05:137.210:40-0.610:413.35:598:09Waxing Crescent14Sat
15Sun3:358.76:007.311:23-0.511:383.35:588:10Waxing Crescent15Sun
16Mon4:238.26:497.412:11-0.35:578:10First Quarter16Mon
17Tue5:227.77:377.812:483.21:030.05:578:11First Quarter17Tue
18Wed6:337.28:228.32:042.81:590.35:568:12First Quarter18Wed
19Thu7:546.99:058.93:142.12:560.65:558:13First Quarter19Thu
20Fri9:176.99:469.54:151.33:511.05:548:14Waxing Gibbous20Fri
21Sat10:337.110:2810.25:080.44:441.45:548:15Waxing Gibbous21Sat
22Sun11:417.411:1010.85:59-0.45:361.85:538:15Waxing Gibbous22Sun
23Mon12:437.86:48-1.16:272.15:528:16Full Moon23Mon
24Tue1:408.07:36-1.67:182.45:528:17Full Moon24Tue
25Wed12:4011.42:358.28:24-1.98:112.65:518:18Full Moon25Wed
26Thu1:2711.33:288.39:13-1.99:062.75:518:18Waning Gibbous26Thu
27Fri2:1610.94:208.410:02-1.810:042.85:508:19Waning Gibbous27Fri
28Sat3:0710.25:128.410:51-1.411:082.95:508:20Waning Gibbous28Sat
29Sun4:009.46:048.411:42-0.95:498:21Waning Gibbous29Sun
30Mon4:588.46:568.512:202.812:34-0.35:498:21Third Quarter30Mon
31Tue6:037.47:468.61:352.61:270.35:488:22Third 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 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 97% 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 (97% 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