Sri Lanka's climate is tropical and consists of distinct wet and dry seasons. The country’s position close to the Equator means that at least the temperature in Sri Lanka remains fairly constant year-round. Coastal and lowland areas enjoy average daytime temperatures of around 26–30°C. During the hottest part of the day, they can often climb up well into the 30°Cs. Temperatures decrease with altitude, reducing to a temperate 18–22°C in Kandy. In Nuwara Eliya and the highest parts of the island, on average it's a pleasantly mild 14–17°C. Nights in the hills can be quite chilly, with temperatures sometimes falling close to freezing. Humidity is often high everywhere. It can rise to a sweltering 90% at times in the southwest, and averages 60 to 80% across the rest of the island.