Catalina Island weather in September
Mild and comfortable, and mostly sunny skies. Average highs of 21°C and lows of 17°C, with around 1 rainy day expected throughout the month.
✦ This is a recommended month to visit Catalina Island. The combination of weather, atmosphere and experience is at its best.
Average high
21°C
Average low
17°C
Rainy days
1 days
Best months to visit
June, July, August, September, October
What to do in Catalina Island in September
Whatever the weather, Catalina Island rewards curious visitors. Here are some of the best ways to spend your time:
Bison viewing: endemic island population seeing tour
Snorkeling and diving: kelp forest and marine wildlife
Avalon town exploring: waterfront restaurants and shops
Hiking: interior island trails and ridgeline walks
Fishing: sportfishing charter boat expeditions
Museum tours: Island history and archaeology exhibits
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
14C
Cool, with occasional showers.
February
14C
Cool, and mostly sunny skies.
March
14C
Cool, with occasional showers.
April
16C
Cool, and mostly sunny skies.
May
16C
Cool, and mostly sunny skies.
Recommended
June
18C
Mild and comfortable, and mostly sunny skies.
Recommended
July
20C
Mild and comfortable, and mostly sunny skies.
Recommended
August
21C
Mild and comfortable, and mostly sunny skies.
Recommended
September (you are here)
21C
Mild and comfortable, and mostly sunny skies.
Recommended
October
20C
Mild and comfortable, and mostly sunny skies.
November
17C
Cool, and mostly sunny skies.
December
15C
Cool, with occasional showers.
Book your September trip to Catalina Island
Find hotels, tours and experiences for the perfect escape.
