37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

73°
H 74°
L 56°
NNW
13mph
Low tide
8:07 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 5h 33m at 8:07 pm (0.8 ft)
Next high tide (tomorrow) : 1:36 am (8.9 ft)
Sunset today : 6:58 pm
Sunrise tomorrow : 6:59 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Dec 1849

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:528.712:4611.47:322.78:28-1.67:114:57Waning Gibbous1Sat
2Sun2:458.71:3511.18:252.99:18-1.57:124:57Waning Gibbous2Sun
3Mon3:408.82:2810.59:253.010:11-1.27:134:57Waning Gibbous3Mon
4Tue4:358.83:279.710:333.011:07-0.77:144:57Waning Gibbous4Tue
5Wed5:328.94:338.711:512.97:154:57Third Quarter5Wed
6Thu6:299.15:497.812:06-0.11:132.67:154:57Third Quarter6Thu
7Fri7:239.47:127.31:080.52:282.07:164:57Third Quarter7Fri
8Sat8:129.88:347.12:081.03:331.47:174:57Waning Crescent8Sat
9Sun8:5710.09:477.23:051.54:270.87:184:57Waning Crescent9Sun
10Mon9:3710.210:497.43:561.95:130.37:194:57Waning Crescent10Mon
11Tue10:1310.311:427.64:442.35:53-0.17:194:57Waning Crescent11Tue
12Wed10:4710.35:272.66:30-0.37:204:57New Moon12Wed
13Thu12:297.811:19 AM10.26:082.97:04-0.47:214:58New Moon13Thu
14Fri1:127.911:51 AM10.16:473.17:37-0.57:224:58New Moon14Fri
15Sat1:527.912:239.97:253.38:10-0.57:224:58New Moon15Sat
16Sun2:297.912:579.78:033.48:43-0.57:234:58Waxing Crescent16Sun
17Mon3:067.91:329.38:423.59:17-0.37:244:59Waxing Crescent17Mon
18Tue3:437.92:108.99:253.59:54-0.17:244:59Waxing Crescent18Tue
19Wed4:218.02:528.410:143.510:330.17:255:00Waxing Crescent19Wed
20Thu5:028.13:417.711:143.411:170.57:255:00Waxing Crescent20Thu
21Fri5:448.34:437.112:233.17:265:01First Quarter21Fri
22Sat6:288.66:016.612:060.91:342.77:265:01First Quarter22Sat
23Sun7:119.07:286.512:591.32:372.07:275:02First Quarter23Sun
24Mon7:559.68:516.71:561.73:311.27:275:02Waxing Gibbous24Mon
25Tue8:3810.210:037.12:532.04:200.47:285:03Waxing Gibbous25Tue
26Wed9:2210.811:047.63:482.35:07-0.47:285:03Waxing Gibbous26Wed
27Thu10:0711.311:598.14:412.55:54-1.17:285:04Waxing Gibbous27Thu
28Fri10:5411.75:332.76:40-1.57:295:05Full Moon28Fri
29Sat12:508.511:42 AM11.86:262.77:27-1.87:295:05Full Moon29Sat
30Sun1:398.812:3211.77:192.78:14-1.87:295:06Full Moon30Sun
31Mon2:279.01:2311.38:142.79:04-1.67:295:07Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

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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 100% 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 (100% 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