Mill Valley in January
Not the best time
January is Mill Valley at its quietest and wettest. Great for cozy inn stays and storm watching, but you'll be dodging puddles more than enjoying hiking trails.
Weather
January brings the wettest weather of the year to Mill Valley, with frequent storms rolling in from the Pacific. Temperatures hover in the 50s during the day, dropping to the low 40s at night. You'll see plenty of gray skies and muddy trails.
14°C high6°C low12 rain days
Crowds & Cost
low crowds
~$180/day average
Events & Festivals
- •New Year's Day hiking traditions on Mount Tamalpais
January Tips
- •Pack waterproof hiking boots - the trails turn into mud slicks
- •Book dinner reservations easily at top spots like Buckeye Roadhouse
- •Bring layers and a good rain jacket for outdoor activities
All Months
April through October gives you the best weather in Mill Valley. Summer means no rain but also means fog that rolls in most afternoons — pack layers even in July. May and September hit the sweet spot with warm days and clear skies. The Mill Valley Film Festival happens in October, bringing crowds and higher hotel rates. Winter brings rain that can last for days, but also fewer tourists and green hills that photographers love. Spring wildflowers bloom best in March and April along the Dipsea Trail. Avoid Memorial Day and Labor Day weekends unless you enjoy fighting for parking spots.
Mill Valley Scores
Solo
6/10
Couples
7/10
Families
8/10
Adventure
6/10
Budget
4/10
Luxury
6/10
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