Weather in Bontang in September

Bontang, Indonesia averages a high of 29.8°C (85.6°F) and low of 24.3°C (75.7°F) in September, with 21 rain days and 10.5 hours of daily sunshine. Travel score: 67.1/100 (Good). The best time to visit Bontang is September.

High
30°C86°F
Low
24°C76°F
🌧️
21
rain days
☀️
10.5
hrs/day sunshine
💧
85%
humidity
67Good

September in Bontang is hot and very rainy — pack an umbrella and enjoy indoor attractions too.

What are the average temperatures in Bontang?

JanFebMarAprMayJunJulAugSep30°24°OctNovDec

How much does it rain in Bontang in September?

Bontang receives an average of 173.5mm of rainfall across 21 rainy days in September. The annual total is 2804.4mm.

JanFebMarAprMayJunJulAugSep21dOctNovDec

What should I pack for Bontang in September?

Essentials

👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 30°C
🧥
Waterproof jacket
Frequent rain expected (21 rainy days)
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
11 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.

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What is the weather like in other months in Bontang?

Data based on 1994–2024 averages · Last updated: 2024-12-31