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 : 9:09 pm (3.7 ft)
Next high tide : in 3h 31m at 3:55 pm (7.6 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 - Aug 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:488.47:43-0.67:352.96:128:16Full Moon1Sun
2Mon12:4010.42:228.58:19-0.48:182.76:138:15Full Moon2Mon
3Tue1:2110.02:538.68:52-0.28:592.56:148:14Full Moon3Tue
4Wed2:019.53:218.79:240.19:402.46:158:13Waning Gibbous4Wed
5Thu2:418.93:488.89:550.510:212.36:158:11Waning Gibbous5Thu
6Fri3:228.34:168.910:251.011:062.16:168:10Waning Gibbous6Fri
7Sat4:077.64:469.010:571.511:552.06:178:09Waning Gibbous7Sat
8Sun5:006.95:209.111:322.16:188:08Third Quarter8Sun
9Mon6:086.46:029.212:521.912:132.76:198:07Third Quarter9Mon
10Tue7:376.06:509.31:581.71:053.26:208:06Third Quarter10Tue
11Wed9:166.27:459.43:061.42:143.56:218:05Third Quarter11Wed
12Thu10:306.68:439.84:070.93:273.66:218:04Waning Crescent12Thu
13Fri11:207.19:3910.15:000.54:303.56:228:02Waning Crescent13Fri
14Sat12:007.55:460.05:243.36:238:01Waning Crescent14Sat
15Sun12:358.06:27-0.46:132.96:248:00Waning Crescent15Sun
16Mon1:098.57:08-0.67:012.56:257:59New Moon16Mon
17Tue12:1511.01:439.07:47-0.77:492.06:267:57New Moon17Tue
18Wed1:0710.92:189.58:26-0.58:391.56:267:56New Moon18Wed
19Thu1:5910.52:549.99:06-0.19:311.16:277:55Waxing Crescent19Thu
20Fri2:549.83:3310.39:470.410:260.86:287:53Waxing Crescent20Fri
21Sat3:539.04:1410.610:291.111:260.66:297:52Waxing Crescent21Sat
22Sun4:598.15:0110.611:161.86:307:51First Quarter22Sun
23Mon6:157.45:5310.512:330.512:112.56:317:49First Quarter23Mon
24Tue7:447.16:5310.31:460.51:203.16:327:48First Quarter24Tue
25Wed9:127.27:5910.23:010.42:413.36:327:47First Quarter25Wed
26Thu10:237.69:0510.14:110.23:593.36:337:45Waxing Gibbous26Thu
27Fri11:178.010:0610.15:100.15:033.16:347:44Waxing Gibbous27Fri
28Sat12:008.45:590.05:562.86:357:42Waxing Gibbous28Sat
29Sun12:378.66:400.06:422.56:367:41Waxing Gibbous29Sun
30Mon1:098.77:160.17:232.26:377:40Full Moon30Mon
31Tue12:309.71:378.87:490.38:012.06:377:38Full Moon31Tue
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 6:32 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 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