Weather in Pematangsiantar in September
Pematangsiantar, Indonesia averages a high of 27.6°C (81.7°F) and low of 20.8°C (69.4°F) in September, with 28 rain days and 8.7 hours of daily sunshine. Travel score: 64.4/100 (Good). The best time to visit Pematangsiantar is February.
High
28°C82°F
Low
21°C69°F
🌧️
28
rain days
☀️
8.7
hrs/day sunshine
💧
90%
humidity
64— Good
September in Pematangsiantar is warm and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Pematangsiantar?
How much does it rain in Pematangsiantar in September?
Pematangsiantar receives an average of 339.1mm of rainfall across 28 rainy days in September. The annual total is 3227.8mm.
What should I pack for Pematangsiantar in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧥
Waterproof jacket
Frequent rain expected (28 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Indonesia in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare Pematangsiantar
Popular comparisons:
How can I plan my trip to Pematangsiantar?
What other cities are near Pematangsiantar?
What are other popular cities in Indonesia?
What is the weather like in other months in Pematangsiantar?
Data based on 1994–2024 averages · Last updated: 2024-12-31