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Winemaking Calculators
Wine Business Monthly Sep 1, 2025 Issue
WINEBUSINESS MONTHLY

The Industry's Leading Publication for Wineries and Growers

Wine Business Monthly Sep 1, 2025 Issue
WINEBUSINESS MONTHLY

The Industry's Leading Publication for Wineries and Growers

Winemaking Calculators

Current Conditions


Napa, Napa County Airport, CA  
Last Update on Sep 2 2025, 5:54 am PDT
63.0 F (17.2 C)
Fair
Fair
Temp:
63.0 F (17.2 C)
Humidity:
84 %
Dew Pt:
57.9 F (14.4 C)
Pressure:
29.89"
Visibility:
10.00 miles
Wind:
Southeast at  6.9 mph

Regional Forecast


Tuesday
Becoming Sunny
93°F / 55°F
Wednesday
Mostly Sunny
93°F / 55°F
Thursday
Mostly Sunny
93°F / 55°F
Friday
Partly Sunny
93°F / 53°F
Saturday
Mostly Sunny
93°F / 53°F
Sunday
Mostly Sunny
93°F / 55°F

Growing Degree Days


Oakville (elev: 190 ft) Degree Days
Compare two years of data:

Daily Average ETo


Oakville (elev: 190 ft)
7 day ETo (daily avg.)
Select Eto date range:

Regional Forecast


Tuesday
Becoming Sunny
93°F / 55°F
Wednesday
Mostly Sunny
93°F / 55°F
Thursday
Mostly Sunny
93°F / 55°F
Friday
Partly Sunny
93°F / 53°F
Saturday
Mostly Sunny
93°F / 53°F
Sunday
Mostly Sunny
93°F / 55°F

Seasonal Rainfall


Napa/Oakville (July 1 - Jun 30)