In general, Hakone tends to be slightly cooler than Tokyo due to its higher elevation and mountainous terrain. The Hakone region, located in the Fuji-Hakone-Izu National Park, sits at an altitude of around 600 to 1,200 meters above sea level, compared to Tokyo's lower elevation. This difference in altitude contributes to cooler temperatures in Hakone, especially during the summer months.
During the winter season, Hakone can also experience colder temperatures compared to Tokyo, often resulting in the possibility of snowfall in Hakone while Tokyo remains snow-free. The variation in elevation and the proximity to the mountains contribute to Hakone's cooler climate, providing visitors with a refreshing and sometimes chilly escape from the urban heat of Tokyo, particularly during the hot summer months.