Nearby Harbors
37.4350’ N, 122.0070’ W

Upper Guadalupe Slough, CA

61°
H 93°
L 67°
E
0mph
Low tide
1:25 pm
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Upper Guadalupe Slough, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sat
Oct 3 		Sunny
Close Hourly 		93º / 67º 2% NNW 10 mph 50%
8am Sunny 61º 2% E 0 mph 86%
9am Sunny 66º 1% E 0 mph 74%
10am Sunny 70º 0% NNE 1 mph 65%
11am Sunny 78º 0% N 2 mph 51%
12pm Sunny 82º 0% NNW 3 mph 45%
1pm Sunny 85º 0% NNW 5 mph 41%
2pm Sunny 88º 0% NNW 7 mph 37%
3pm Sunny 91º 0% NNW 8 mph 33%
4pm Sunny 91º 0% NNW 10 mph 31%
5pm Sunny 91º 0% NNW 10 mph 34%
6pm Sunny 86º 0% NNW 9 mph 38%
7pm Clear 82º 0% NNW 7 mph 44%
8pm Clear 79º 0% NNW 6 mph 50%
9pm Clear 76º 0% NNW 4 mph 55%
10pm Clear 74º 0% NNW 3 mph 59%
11pm Clear 73º 1% N 2 mph 62%
Sun
Oct 4 		Partly Cloudy
View Hourly 		90º / 65º 3% N 10 mph 45%
12am Clear 72º 1% NNE 1 mph 64%
1am Clear 71º 1% NNE 1 mph 66%
2am Partly Cloudy 70º 1% NE 1 mph 65%
3am Partly Cloudy 70º 2% ENE 1 mph 66%
4am Partly Cloudy 69º 2% NNE 1 mph 66%
5am Partly Cloudy 69º 2% NNE 1 mph 64%
6am Partly Cloudy 68º 3% E 1 mph 64%
7am Mostly Cloudy 68º 3% ESE 1 mph 64%
8am Mostly Cloudy 70º 2% ESE 1 mph 60%
9am Mostly Cloudy 73º 1% E 1 mph 57%
10am Mostly Cloudy 76º 0% N 1 mph 51%
11am Mostly Cloudy 80º 0% NNW 2 mph 47%
12pm Mostly Cloudy 83º 0% NNW 3 mph 42%
1pm Mostly Cloudy 85º 0% NNW 5 mph 38%
2pm Mostly Cloudy 86º 0% NNW 6 mph 35%
3pm Partly Cloudy 89º 0% NNW 8 mph 34%
4pm Partly Cloudy 89º 0% NNW 10 mph 34%
5pm Mostly Sunny 87º 0% NNW 10 mph 38%
6pm Sunny 83º 0% NNW 9 mph 41%
7pm Clear 79º 0% NNW 7 mph 48%
8pm Clear 77º 0% NNW 6 mph 53%
9pm Clear 74º 0% NNW 4 mph 57%
10pm Clear 73º 1% NNW 3 mph 62%
11pm Clear 72º 2% N 2 mph 63%
Mon
Oct 5 		Sunny
View Hourly 		89º / 66º 3% N 10 mph 49%
12am Clear 71º 2% NNE 2 mph 65%
1am Clear 70º 2% N 2 mph 67%
2am Clear 69º 3% N 1 mph 67%
3am Mostly Clear 68º 3% NNE 2 mph 68%
4am Mostly Clear 67º 4% NNW 2 mph 69%
5am Mostly Clear 66º 4% N 2 mph 69%
6am Mostly Clear 66º 4% N 2 mph 70%
7am Clear 66º 4% NE 1 mph 71%
Tue
Oct 6 		Sunny 91º / 66º 1% N 11 mph 45%
Wed
Oct 7 		Sunny 90º / 62º 1% N 12 mph 44%
Thu
Oct 8 		Sunny 87º / 61º 3% N 11 mph 48%
Fri
Oct 9 		Sunny 77º / 58º 6% NW 11 mph 62%
Sat
Oct 10 		Partly Cloudy 71º / 56º 8% WNW 12 mph 67%

Weather Radar for Upper Guadalupe Slough, CA See Radar

See Radar Map

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Upper Guadalupe Slough, CA

Today
High : 80ºF
Variable winds less than 5 kt becoming NW 6 to 11 kt in the afternoon. Sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Tonight
Low : 67ºF
Variable winds 5 kt or less. Increasing clouds. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday
High : 79ºF
Variable winds less than 5 kt becoming NW 5 to 10 kt in the afternoon. Winds could gust as high as 18 kt. Cloudy, then gradual clearing during the afternoon. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday Night
Low : 65ºF
NW wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Clear. N swell 0 ft. Wind waves 1 ft or less.
Monday
High : 77ºF
Variable winds less than 5 kt becoming WNW 5 to 8 kt in the afternoon. Sunny. N swell 0 ft. Wind waves 1 ft or less.
Monday Night
Low : 65ºF
WNW wind 6 to 11 kt becoming variable and less than 5 kt in the evening. Clear. N swell 0 ft. Wind waves 1 ft or less.
Tuesday
High : 78ºF
Variable winds less than 5 kt becoming NW 5 to 9 kt in the afternoon. Sunny. N swell 0 ft. Wind waves 1 ft or less.
Tuesday Night
Low : 66ºF
WNW wind 8 to 13 kt becoming variable and less than 5 kt in the evening. Clear. N swell 0 ft. Wind waves 1 ft or less.
Wednesday
High : 77ºF
Variable winds less than 5 kt becoming NW 5 to 9 kt in the afternoon. Sunny. N swell 0 ft. Wind waves 1 ft or less.

NOAA Buoy Data Near Upper Guadalupe Slough, CA See Map

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    Wind Speed Forecast for Upper Guadalupe Slough, CA

    SaturdaySundayMonday
    Wind Speed (MPH) 03106111310622
    3pm7pm11pm3am7am11am3pm7pm11pm3am7am11am
    MPH 03106111310622
    DIR ENNWNNWNNWNNENNEESENNWNNWNNWNNENNW

    Current Weather Conditions In Upper Guadalupe Slough, CA

    As Of: 47 minutes ago

    • 61ºF
    • 61ºF
    • 0mph
    • 0º (E)
    • 0mph
    • Sunny
    • 10mi
    • 29.88"
    • 86%
    • 0ºF

    The weather right now in Upper Guadalupe Slough, CA is Sunny. The current temperature is 61°F, and the expected high and low for today, Saturday, October 3, 2026, are 93° high temperature and 67°F low temperature. The wind is currently blowing at 0 miles per hour, and coming from the East. The wind is gusting to 0 mph. With the wind and the atmosphere the temperature feels like 61° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 86 percent, and air pressure at 29.88 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Heat Advisory - 7:32am Sat Oct 3 2026

    ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 10 PM PDT MONDAY...

    WHAT: Hot conditions with maximum temperatures in the mid-90s to
    low-100s. Mild minimum temperatures and weak onshore flow will
    limit overnight relief.

    WHERE: The East Bay and San Francisco Bay Shoreline, North Bay
    Interior Mountains and Valleys, The Santa Clara Valley and Eastern
    Hills, The Santa Cruz Mountains, Interior Monterey County and the
    Santa Lucia Range, Most of San Benito County and the Cholame Hills
    in Southeast Monterey County, and Southern Salinas Valley/Arroyo
    Seco and Lake San Antonio.

    WHEN: From 11 AM this morning to 10 PM PDT Monday.

    IMPACTS: This level of heat affects anyone without effective
    cooling and/or adequate hydration. Impacts likely in some health
    systems, heat-sensitive industries and infrastructure.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Hydration is a critical piece to surviving the heat. Drink water, and
    if possible, take water to those who are vulnerable.

    Take extra precautions when outside. Wear lightweight and loose
    fitting clothing. Try to limit strenuous activities to the early
    morning or evening. Take action when you experience symptoms of heat
    exhaustion and/or heat stroke.

    &&

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