From October to April the weather is slightly cooler but much wetter than in the south; expect it to rain at any time. At night, mountain breezes make air-con unnecessary and let you hear the symphony of frogs, bugs and distant gamelan practices echoing over the rice fields through your screened window.
Temperatures during the day average 30°C and at night 20°C, although extremes are possible. Seasonal variation is muted.
Peak season (July, August and the Christmas holidays) bring a huge influx of visitors, and lodgings and restaurants are booked.
In October, the Ubud Writers & Readers Festival is hugely popular.