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Get the monthly weather forecast for Sonoma, CA, including daily high/low, historical averages, to help you plan ahead.
Weather.com brings you the most accurate monthly weather forecast for Sonoma, CA with average/record and high/low temperatures, precipitation and more.
December Weather in Sonoma. California, United States. Daily high temperatures decrease by 5°F, from 59°F to 55°F, rarely falling below 48°F or exceeding 66°F. The lowest daily average high temperature is 55°F on December 27. Daily low temperatures decrease by 2°F, from 41°F to 38°F, rarely falling below 29°F or exceeding 51°F.
The weather in Sonoma in December is moderately chilly with a gentle breeze, with average highs of 57°F (14°C) and lows of 41°F (5°C).
This report shows the past weather for Sonoma, providing a weather history for December 2021. It features all historical weather data series we have available, including the Sonoma temperature history for December 2021.
More Information: Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast. Extended Forecast for. Sonoma CA. Tonight. Low: 54 °F. Partly Cloudy. Sunday. High: 83 °F. Sunny. Sunday Night. Low: 60 °F. Partly Cloudy. Monday. High: 79 °F. Partly Sunny. Monday Night. Low: 55 °F. Partly Cloudy. Tuesday. High: 96 °F. Hot. Tuesday Night.
