The 10-day span for Haikou runs from a high near 32° on Monday down to 24° overnight on Sunday. Models drop roughly 6.1 in of precipitation across the stretch — watch Sunday (92%). Expect a blustery spell — gusts near 27 mph on Sunday. Right now Haikou is about 3° cooler than nearby Qinzhou. Longer view: a tropical climate — warm all year, with the calendar split into wet and dry rather than hot and cold.
Haikou, China · 20.03°N, 110.35°E · Asia/Shanghai · Forecast computed for these exact coordinates