37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

57°
H 67°
L 52°
SSW
0mph
Low tide
7:32 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 10, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 1h 39m at 7:32 am (1.4 ft)
Next high tide : 1:04 pm (10.1 ft)
Sunset today : 6:38 pm
Sunrise tomorrow : 7:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 1826

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:469.88:126.912:132.91:540.16:466:08Third Quarter1Wed
2Thu6:569.79:227.41:403.23:060.06:456:09Third Quarter2Thu
3Fri8:079.610:157.93:023.14:07-0.26:436:10Waning Crescent3Fri
4Sat9:119.610:588.34:092.74:57-0.36:426:11Waning Crescent4Sat
5Sun10:079.611:358.65:042.35:40-0.36:406:12Waning Crescent5Sun
6Mon10:589.55:521.96:18-0.16:396:13New Moon6Mon
7Tue12:088.811:44 AM9.26:341.66:520.16:386:14New Moon7Tue
8Wed12:378.912:278.97:131.37:240.56:366:15New Moon8Wed
9Thu1:049.01:088.57:501.17:550.96:356:16New Moon9Thu
10Fri1:299.01:508.18:250.98:251.36:336:17Waxing Crescent10Fri
11Sat1:559.02:327.69:020.88:561.86:326:18Waxing Crescent11Sat
12Sun2:229.03:187.19:400.89:282.26:306:19Waxing Crescent12Sun
13Mon2:538.94:116.610:220.810:042.76:296:20Waxing Crescent13Mon
14Tue3:298.85:186.211:120.910:493.16:276:21Waxing Crescent14Tue
15Wed4:138.66:426.112:120.96:266:22First Quarter15Wed
16Thu5:088.48:056.31:210.86:246:23First Quarter16Thu
17Fri6:138.39:036.71:183.52:280.66:236:23First Quarter17Fri
18Sat7:228.49:447.12:363.33:250.46:216:24Waxing Gibbous18Sat
19Sun8:278.710:197.63:362.94:130.16:206:25Waxing Gibbous19Sun
20Mon9:279.010:518.24:262.44:55-0.16:186:26Waxing Gibbous20Mon
21Tue10:229.211:238.85:121.75:35-0.16:176:27Waxing Gibbous21Tue
22Wed11:169.411:569.45:561.06:140.16:156:28Full Moon22Wed
23Thu12:109.36:410.36:540.46:146:29Full Moon23Thu
24Fri12:309.91:049.17:28-0.27:340.86:126:30Full Moon24Fri
25Sat1:0710.42:008.78:16-0.68:171.36:116:31Waning Gibbous25Sat
26Sun1:4710.62:598.29:07-0.89:021.86:096:32Waning Gibbous26Sun
27Mon2:3010.54:037.710:02-0.89:542.46:086:32Waning Gibbous27Mon
28Tue3:1910.25:157.311:03-0.610:562.86:066:33Waning Gibbous28Tue
29Wed4:169.76:347.212:10-0.46:056:34Third Quarter29Wed
30Thu5:229.17:497.412:173.11:23-0.16:036:35Third Quarter30Thu
31Fri6:378.78:507.81:463.02:330.06:026:36Third Quarter31Fri
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 0% 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 New Moon (0% 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