37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

55°
H -°
L 51°
ESE
0mph
High tide
4:33 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Wednesday, October 14, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:57 am (3.6 ft)
Next high tide : in 2h 52m at 4:33 am (7.5 ft)
Sunset today : 6:32 pm
Sunrise tomorrow : 7:15 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Aug 1817

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:368.94:078.710:030.310:402.65:187:23Waning Gibbous1Fri
2Sat3:258.04:408.710:400.911:392.45:197:22Waning Gibbous2Sat
3Sun4:237.15:148.811:181.75:207:21Third Quarter3Sun
4Mon5:376.35:519.012:442.212:022.45:217:20Third Quarter4Mon
5Tue7:166.06:339.11:511.812:553.05:227:19Third Quarter5Tue
6Wed9:016.27:209.32:531.41:593.55:237:18Third Quarter6Wed
7Thu10:156.78:109.63:480.93:053.85:237:17Waning Crescent7Thu
8Fri11:057.28:599.94:360.54:023.95:247:16Waning Crescent8Fri
9Sat11:447.59:4710.25:180.14:503.85:257:14Waning Crescent9Sat
10Sun12:187.85:57-0.35:333.65:267:13Waning Crescent10Sun
11Mon12:508.06:34-0.66:143.45:277:12New Moon11Mon
12Tue1:218.27:10-0.86:553.15:287:11New Moon12Tue
13Wed12:0110.81:528.57:45-0.87:382.85:287:10New Moon13Wed
14Thu12:4710.62:248.88:21-0.78:262.45:297:09Waxing Crescent14Thu
15Fri1:3510.12:579.18:58-0.39:172.05:307:07Waxing Crescent15Fri
16Sat2:279.43:329.59:360.310:141.75:317:06Waxing Crescent16Sat
17Sun3:278.54:119.910:171.011:181.35:327:05Waxing Crescent17Sun
18Mon4:397.54:5410.111:021.95:337:03First Quarter18Mon
19Tue6:086.95:4510.312:301.011:56 AM2.75:347:02First Quarter19Tue
20Wed7:506.86:4310.51:450.61:053.35:347:01First Quarter20Wed
21Thu9:207.27:4510.62:580.12:243.65:357:00Waxing Gibbous21Thu
22Fri10:257.78:4710.74:02-0.33:383.75:366:58Waxing Gibbous22Fri
23Sat11:148.29:4510.84:57-0.54:413.55:376:57Waxing Gibbous23Sat
24Sun11:568.510:3810.85:45-0.75:343.25:386:55Waxing Gibbous24Sun
25Mon12:348.66:28-0.76:222.95:396:54Full Moon25Mon
26Tue1:088.77:07-0.67:072.65:406:53Full Moon26Tue
27Wed12:1210.31:398.87:43-0.37:492.35:406:51Full Moon27Wed
28Thu12:559.82:088.88:160.18:312.15:416:50Waning Gibbous28Thu
29Fri1:389.12:358.88:480.69:122.05:426:48Waning Gibbous29Fri
30Sat2:228.43:018.99:191.29:561.85:436:47Waning Gibbous30Sat
31Sun3:107.73:298.99:521.910:441.75:446:46Waning Gibbous31Sun
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 16% 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 Waxing Crescent (16% 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