Mill Valley Weather in April

April in Mill Valley averages 18°C (64°F) during the day and 8°C (46°F) at night. Quite a bit of rainfall is typical this month, with around 66 mm (2.6 in) on average. An umbrella is a good idea.

Rainfall in Mill Valley in April

Analyzing past climate data, one can expect approximately 8 days of rain, averaging 66 mm (2.6 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Mill Valley in April

Mill Valley in April gets highs of 18°C (64°F) during the day and drops to 8°C (46°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Mill Valley in April

Expect a lot of sunshine this month, with about 310 hours of sun. These sunny conditions add to the overall experience.

Should you favor a climate that's both dry and comfortably warm, May, June, July, August, September and October typically offer 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.