Surabaya's outlook: warmest day near 91° (Sunday), coldest night about 73° (Saturday). About 0.86 in of precipitation is expected in total; the most likely wet day is Thursday (70% chance). Right now Surabaya is running about 20° warmer than Malang. Longer view: a tropical climate — warm all year, with the calendar split into wet and dry rather than hot and cold.
Surabaya, Indonesia · 7.25°S, 112.75°E · Asia/Jakarta · Forecast computed for these exact coordinates