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 2h 17m 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 - Mar 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:058.98:166.712:422.72:060.86:386:02Third Quarter1Sun
2Mon7:068.89:287.11:593.13:120.66:366:03Third Quarter2Mon
3Tue8:068.710:217.43:113.14:080.46:356:04Waning Crescent3Tue
4Wed9:028.811:017.74:103.04:540.36:346:05Waning Crescent4Wed
5Thu9:519.011:347.94:582.85:330.16:326:06Waning Crescent5Thu
6Fri10:359.15:392.56:080.16:316:07Waning Crescent6Fri
7Sat12:028.111:15 AM9.16:162.26:390.16:296:07New Moon7Sat
8Sun12:298.212:549.17:492.08:090.27:287:08New Moon8Sun
9Mon1:548.41:328.98:221.78:380.37:267:09New Moon9Mon
10Tue2:208.62:118.78:541.59:070.67:257:10New Moon10Tue
11Wed2:478.82:528.39:291.29:380.97:237:11Waxing Crescent11Wed
12Thu3:168.93:377.910:071.010:121.37:227:12Waxing Crescent12Thu
13Fri3:489.04:287.410:510.810:491.87:207:13Waxing Crescent13Fri
14Sat4:249.15:316.911:420.711:342.37:197:14Waxing Crescent14Sat
15Sun5:089.06:506.612:420.67:177:15First Quarter15Sun
16Mon6:019.08:186.612:322.81:520.47:167:16First Quarter16Mon
17Tue7:069.09:367.01:483.13:050.27:147:17First Quarter17Tue
18Wed8:189.210:347.63:113.14:13-0.27:137:18Waxing Gibbous18Wed
19Thu9:289.411:218.24:242.85:11-0.57:117:19Waxing Gibbous19Thu
20Fri10:329.75:252.26:03-0.67:107:20Waxing Gibbous20Fri
21Sat12:038.711:31 AM10.06:191.66:49-0.77:087:21Waxing Gibbous21Sat
22Sun12:429.212:2710.07:091.17:33-0.57:077:21Full Moon22Sun
23Mon1:209.61:209.87:570.68:16-0.17:057:22Full Moon23Mon
24Tue1:579.82:139.48:450.28:570.37:047:23Full Moon24Tue
25Wed2:349.93:068.89:330.09:390.97:027:24Waning Gibbous25Wed
26Thu3:119.84:018.210:21-0.110:231.67:017:25Waning Gibbous26Thu
27Fri3:509.65:007.611:110.011:112.26:597:26Waning Gibbous27Fri
28Sat4:319.26:087.112:050.26:587:27Waning Gibbous28Sat
29Sun5:178.77:266.912:072.71:060.46:567:28Third Quarter29Sun
30Mon6:118.28:466.91:183.12:120.66:557:29Third Quarter30Mon
31Tue7:157.89:517.22:403.23:190.66:537:30Third 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 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