Olympic National Park weather in September
Cool, with some rainy days. Average highs of 15°C and lows of 5°C, with around 12 rainy days expected throughout the month.
While September isn't our top-rated month for Olympic National Park, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
15°C
Average low
5°C
Rainy days
12 days
Best months to visit
August
What to do in Olympic National Park in September
Whatever the weather, Olympic National Park rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
2C
Cold, with regular rainfall.
February
0C
Cold, with regular rainfall.
March
2C
Cold, with regular rainfall.
April
5C
Cold, with regular rainfall.
May
11C
Cool, with some rainy days.
June
15C
Cool, with some rainy days.
July
19C
Mild and comfortable, with occasional showers.
Recommended
August
20C
Mild and comfortable, with occasional showers.
September (you are here)
15C
Cool, with some rainy days.
October
10C
Cool, with regular rainfall.
November
4C
Cold, with regular rainfall.
December
0C
Cold, with frequent heavy rain.
Book your September trip to Olympic National Park
Find hotels, tours and experiences for the perfect escape.
