Dennis
FallGood time to go ~61°F highs
Things to do in Dennis in October
October is a good month to visit Dennis, with average highs around 61°F. Crisp air and changing leaves make parks and viewpoints shine.
Best picks for October
What's famous here, weighted toward what shines in October.
Holidays in October 2026
- Columbus Day · Mon, Oct 12
Expect busier roads and pricier stays around these dates. See long weekends.
What’s on in Dennis in October
Concerts, games and shows in the next few weeks. Tickets open on Ticketmaster.
Dennis in October: quick answers
Is October a good time to visit Dennis?
October is a good month to visit Dennis, with average highs around 61°F. Crisp air and changing leaves make parks and viewpoints shine.
What is the weather like in Dennis in October?
Average daytime highs are around 61°F, compared with 80°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.
What are the best things to do in Dennis in October?
Top picks for October: Cape Cod National Seashore, Monomoy National Wildlife Refuge, Nickerson State Park, Scargo Tower, Eldredge Park.
