Santa Rosa Weather in December

Santa Rosa in December sees high temperatures, with highs around 29°C (84°F) and overnight lows of 24°C (75°F). Rainfall is fairly high at around 141 mm (5.6 in) on average, so pack waterproofs just in case.

Rainfall in Santa Rosa in December

Analyzing past climate data, one can expect approximately 10 days of rain, averaging 141 mm (5.6 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Santa Rosa in December

December in Santa Rosa brings typical temperatures with highs around 29°C (84°F) and lows of 24°C (75°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Santa Rosa in December

The month experiences a moderate amount of sunlight, with 152 hours of sunshine. This provides a nice balance between sunshine and clouds.

Should you favor a climate that's both dry and comfortably warm, January typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.