Koya-san weather in August
Warm and pleasant, with regular rainfall. Average highs of 27°C and lows of 20°C, with around 17 rainy days expected throughout the month.
While August isn't our top-rated month for Koya-san, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
27°C
Average low
20°C
Rainy days
17 days
Best months to visit
Year-round
What to do in Koya-san in August
Whatever the weather, Koya-san rewards curious visitors. Here are some of the best ways to spend your time:
Overnight monastery lodging and meditation
Early morning prayer sessions with monks
Temple tour of 117 monasteries
Mountain hiking among temple grounds
Vegetarian Buddhist meal preparations
Cemetery lantern walks at dusk
What to pack for August
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
3C
Cold, with some rainy days.
February
5C
Cold, with some rainy days.
March
10C
Cool, with some rainy days.
April
15C
Cool, with some rainy days.
May
19C
Mild and comfortable, with some rainy days.
June
22C
Mild and comfortable, with regular rainfall.
July
26C
Warm and pleasant, with regular rainfall.
August (you are here)
27C
Warm and pleasant, with regular rainfall.
September
23C
Mild and comfortable, with regular rainfall.
October
18C
Mild and comfortable, with some rainy days.
November
13C
Cool, with some rainy days.
December
6C
Cold, with some rainy days.
Book your August trip to Koya-san
Find hotels, tours and experiences for the perfect escape.
