37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

54°
H -°
L 51°
N
0mph
High tide
4:35 am

Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Thursday, October 29, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 9:45 am (3.6 ft)
Next high tide : in 5h 40m at 4:35 am (7.9 ft)
Sunset today : 6:14 pm
Sunrise tomorrow : 7:29 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - May 1795

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:237.511:289.06:060.75:541.25:197:04Waxing Gibbous1Fri
2Sat12:087.46:400.46:261.65:187:05Full Moon2Sat
3Sun12:527.47:130.16:582.05:167:06Full Moon3Sun
4Mon12:179.21:347.37:44-0.17:292.35:157:07Full Moon4Mon
5Tue12:449.22:187.28:16-0.38:022.75:147:08Full Moon5Tue
6Wed1:129.13:037.18:50-0.48:363.05:137:09Waning Gibbous6Wed
7Thu1:439.03:517.09:27-0.49:163.35:127:09Waning Gibbous7Thu
8Fri2:198.84:457.010:10-0.410:043.55:117:10Waning Gibbous8Fri
9Sat3:018.55:447.010:58-0.311:073.65:107:11Waning Gibbous9Sat
10Sun3:538.16:427.211:53-0.25:097:12Third Quarter10Sun
11Mon4:577.77:357.512:283.512:53-0.15:087:13Third Quarter11Mon
12Tue6:127.58:208.01:483.11:530.05:077:14Third Quarter12Tue
13Wed7:317.49:008.62:542.52:490.15:067:15Waning Crescent13Wed
14Thu8:467.59:379.23:491.73:410.35:067:16Waning Crescent14Thu
15Fri9:557.810:149.94:390.84:300.65:057:16Waning Crescent15Fri
16Sat10:598.010:5210.55:27-0.15:171.05:047:17Waning Crescent16Sat
17Sun12:008.26:15-0.86:041.55:037:18New Moon17Sun
18Mon12:598.37:02-1.46:521.95:027:19New Moon18Mon
19Tue12:1311.11:588.37:51-1.77:422.35:027:20New Moon19Tue
20Wed12:5711.02:568.38:40-1.88:352.75:017:21Waxing Crescent20Wed
21Thu1:4310.73:548.29:32-1.69:343.05:007:21Waxing Crescent21Thu
22Fri2:3310.04:548.210:25-1.310:423.25:007:22Waxing Crescent22Fri
23Sat3:279.25:558.211:21-0.811:593.24:597:23First Quarter23Sat
24Sun4:278.36:548.312:20-0.44:587:24First Quarter24Sun
25Mon5:377.57:478.51:192.91:200.14:587:25First Quarter25Mon
26Tue6:536.98:328.72:312.52:160.54:577:25First Quarter26Tue
27Wed8:106.69:108.93:321.93:080.94:577:26Waxing Gibbous27Wed
28Thu9:206.69:439.14:221.43:541.34:567:27Waxing Gibbous28Thu
29Fri10:226.710:129.35:060.94:351.74:567:27Waxing Gibbous29Fri
30Sat11:166.810:409.55:440.45:132.14:557:28Waxing Gibbous30Sat
31Sun12:047.06:190.05:492.54:557:29Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

Collapse All
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 91% 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 Waning Gibbous (91% 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