Pematangsiantar, Indonesia 10-Day Forecast

About Pematangsiantar weather

Pematangsiantar is in Kota Pematang Siantar, Indonesia at 2.96°, 99.07°. Right now it’s 27° and isolated storms; today’s high is 29° with a 65% chance of rain.

Indonesia is the world's largest archipelago, straddling the equator across 5,100 kilometers with over 17,000 islands that create an extraordinarily complex tropical maritime climate. The country lies within the Indo-Pacific Warm Pool, where sea surface temperatures consistently exceed 28°C, fueling intense convection and some of the most prolific thunderstorm activity on the planet. Indonesia experiences an average of 200+ thunderstorm days per year in many areas.