37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

78°
H 93°
L 67°
N
5mph
Low tide
1:25 pm

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Saturday, October 3, 2026
The tide is currently falling in Upper Guadalupe Slough, CA.
Next low tide : in 2h 36m at 1:25 pm (4.0 ft)
Next high tide : 6:25 pm (9.6 ft)
Sunset today : 6:48 pm
Sunrise tomorrow : 7:05 am
Moon phase : Third Quarter (48% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 1838

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:5410.15:256.811:360.311:062.76:466:08First Quarter1Thu
2Fri4:409.97:066.512:480.36:456:09First Quarter2Fri
3Sat5:359.58:466.812:123.42:060.26:436:10First Quarter3Sat
4Sun6:419.29:547.31:423.73:180.16:426:11First Quarter4Sun
5Mon7:519.010:427.73:083.74:190.06:406:12Waxing Gibbous5Mon
6Tue8:559.011:207.94:133.55:08-0.26:396:13Waxing Gibbous6Tue
7Wed9:509.111:518.05:043.15:47-0.26:376:14Waxing Gibbous7Wed
8Thu10:369.25:462.76:21-0.26:366:15Waxing Gibbous8Thu
9Fri12:188.111:18 AM9.16:232.46:500.06:356:16Full Moon9Fri
10Sat12:428.211:56 AM8.96:572.07:160.26:336:17Full Moon10Sat
11Sun1:028.312:358.67:301.77:410.56:326:18Full Moon11Sun
12Mon1:238.51:138.28:031.48:050.96:306:19Full Moon12Mon
13Tue1:438.71:547.78:361.18:301.46:296:20Waning Gibbous13Tue
14Wed2:058.92:397.29:120.98:571.96:276:21Waning Gibbous14Wed
15Thu2:309.03:326.79:520.79:252.56:266:22Waning Gibbous15Thu
16Fri2:599.14:396.310:400.69:583.16:246:23Waning Gibbous16Fri
17Sat3:369.06:126.011:370.510:433.66:236:24Third Quarter17Sat
18Sun4:248.98:036.212:470.36:216:24Third Quarter18Sun
19Mon5:298.99:166.712:013.92:030.16:206:25Third Quarter19Mon
20Tue6:479.09:587.11:494.03:12-0.36:186:26Third Quarter20Tue
21Wed8:039.310:337.63:123.64:09-0.76:176:27Waning Crescent21Wed
22Thu9:119.611:058.14:133.04:58-0.96:156:28Waning Crescent22Thu
23Fri10:129.911:368.75:062.25:42-0.96:146:29Waning Crescent23Fri
24Sat11:109.95:561.46:23-0.66:126:30New Moon24Sat
25Sun12:089.312:079.76:450.67:02-0.26:116:31New Moon25Sun
26Mon12:409.81:049.27:340.07:410.56:096:32New Moon26Mon
27Tue1:1410.32:028.68:23-0.58:211.36:086:33Waxing Crescent27Tue
28Wed1:4910.43:038.09:14-0.79:032.06:066:33Waxing Crescent28Wed
29Thu2:2610.34:117.410:07-0.79:492.76:056:34Waxing Crescent29Thu
30Fri3:0710.05:307.011:05-0.510:473.36:036:35Waxing Crescent30Fri
31Sat3:559.47:006.912:11-0.26:026:36First Quarter31Sat
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 neap phase. Tonight's moon is 48% 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 minimum.

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 Third Quarter (48% illuminated). This places Upper Guadalupe Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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