Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 7:13 pm (3.8 ft)
Next high tide : in 58m at 2:16 pm (7.5 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Oct 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:459.111:328.95:560.66:231.67:036:51Waning Crescent1Sun
2Mon12:179.26:350.87:031.37:046:49Waning Crescent2Mon
3Tue12:198.812:469.37:091.17:391.07:056:48New Moon3Tue
4Wed1:038.61:129.37:421.48:130.87:066:46New Moon4Wed
5Thu1:448.41:389.48:131.88:470.77:076:45New Moon5Thu
6Fri2:258.22:049.48:442.19:200.67:086:43New Moon6Fri
7Sat3:067.92:339.39:152.59:550.57:096:42Waxing Crescent7Sat
8Sun3:507.63:049.29:492.810:340.57:096:41Waxing Crescent8Sun
9Mon4:397.43:409.010:263.111:170.67:106:39Waxing Crescent9Mon
10Tue5:347.14:248.711:123.47:116:38Waxing Crescent10Tue
11Wed6:387.05:178.412:090.712:133.67:126:36First Quarter11Wed
12Thu7:467.16:218.21:080.81:343.67:136:35First Quarter12Thu
13Fri8:447.57:348.22:120.72:543.37:146:33First Quarter13Fri
14Sat9:327.98:458.33:140.73:572.87:156:32First Quarter14Sat
15Sun10:128.59:528.64:090.64:502.27:166:31Waxing Gibbous15Sun
16Mon10:499.110:548.94:580.65:371.47:176:29Waxing Gibbous16Mon
17Tue11:269.811:529.15:440.76:230.67:186:28Waxing Gibbous17Tue
18Wed12:0310.46:280.97:10-0.17:196:27Full Moon18Wed
19Thu12:499.312:4210.97:121.27:56-0.77:206:25Full Moon19Thu
20Fri1:459.21:2211.27:571.68:45-1.07:216:24Full Moon20Fri
21Sat2:419.12:0511.28:442.09:35-1.17:226:23Waning Gibbous21Sat
22Sun3:398.82:5211.09:342.410:28-1.07:236:21Waning Gibbous22Sun
23Mon4:408.63:4210.510:302.811:24-0.77:246:20Waning Gibbous23Mon
24Tue5:448.34:389.811:363.07:256:19Third Quarter24Tue
25Wed6:508.35:429.012:25-0.312:543.17:266:18Third Quarter25Wed
26Thu7:568.46:558.41:310.12:183.07:276:16Third Quarter26Thu
27Fri8:558.68:117.92:380.53:322.67:286:15Third Quarter27Fri
28Sat9:458.99:247.83:380.74:342.17:296:14Waning Crescent28Sat
29Sun10:269.210:287.84:311.05:251.57:306:13Waning Crescent29Sun
30Mon11:019.411:247.85:171.36:081.17:316:12Waning Crescent30Mon
31Tue11:329.55:571.66:470.77:326:11Waning Crescent31Tue
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 4:44 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 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