San Rafael in September
Great time to visit
September gives you summer weather without peak summer chaos. Many locals consider this the secret best month to visit.
Weather
September often provides San Rafael's best weather as the heat subsides but rain stays away. Warm days with gentle breezes and comfortable nights. The marine layer returns occasionally but briefly.
26°C high13°C low1 rain days
Crowds & Cost
high crowds
~$235/day average
Events & Festivals
- •Labor Day weekend
- •Harvest festivals in nearby wine country
- •Back-to-school season affects local rhythms
September Tips
- •Excellent month for outdoor activities as heat becomes manageable
- •Crowds thin after Labor Day but weather remains excellent
- •Wine country visits are perfect with harvest season beginning
All Months
April through October gives you San Rafael at its finest. Spring brings wildflowers to the hillsides and perfect hiking weather – 65-75°F with minimal rain. May and June are ideal if you want green landscapes without summer crowds.
Summer gets warm, hitting 80-85°F regularly, but the marine layer keeps things comfortable. This is peak family season, with school breaks bringing more visitors to nearby attractions. Book accommodations early.
Fall might be the sweet spot. September and October offer the warmest weather of the year, often reaching into the 80s, while tourist numbers drop after Labor Day. The hills turn golden, creating that classic California landscape you see in movies.
Winter isn't terrible – temperatures rarely drop below 45°F – but rain can disrupt outdoor plans from December through March. The upside? Hotel rates drop significantly, and you'll have hiking trails mostly to yourself on clear days.
San Rafael Scores
Solo
6/10
Couples
6/10
Families
9/10
Adventure
7/10
Budget
4/10
Luxury
6/10
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