Weather in Dumai in January
Dumai, Indonesia averages a high of 28.9°C (84°F) and low of 23.4°C (74.1°F) in January, with 21 rain days and 9.2 hours of daily sunshine. Travel score: 65.5/100 (Good). The best time to visit Dumai is February.
High
29°C84°F
Low
23°C74°F
🌧️
21
rain days
☀️
9.2
hrs/day sunshine
💧
88%
humidity
66— Good
January in Dumai is hot and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Dumai?
How much does it rain in Dumai in January?
Dumai receives an average of 215.8mm of rainfall across 21 rainy days in January. The annual total is 2779.2mm.
What should I pack for Dumai in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°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+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting Indonesia in January?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31