Temperatures somewhere high and low are determined by the area of the ocean surface and the distance from the beach. In general, East Kalimantan hot climates with temperatures in 2013 ranged from 21.6 ⁰C in Berau October to 35.6 ⁰C in Berau in September. Aside from being a tropical area with extensive forests, in 2013 the average humidity between 83-87 percent of East Kalimantan. The lowest air humidity observed by the meteorological station Samarinda happens in a few months with 82 percent humidity. While the highest occurred in Berau in February with 91 percent humidity.