Mill Valley in October
Great time to visit
October brings cooler days and the excitement of film festival season. Great hiking weather with fewer summer crowds, though you'll want to pack for changing conditions.
Weather
October brings pleasant fall weather with daytime highs in the low 70s and cool nights dipping into the upper 40s. The first rains of the season might arrive late in the month. Morning fog becomes less frequent.
22°C high9°C low3 rain days
Crowds & Cost
moderate crowds
~$220/day average
Events & Festivals
- •Mill Valley Film Festival
- •Halloween celebrations on Miller Avenue
- •Fall foliage hikes on Mount Tamalpais
October Tips
- •The famous Mill Valley Film Festival requires advance tickets
- •Pack layers for significant temperature differences between day and night
- •October storms can arrive suddenly - check weather before hiking
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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