Dumai Weather in September

September in Dumai typically sees daytime highs of 33°C (91°F) and nighttime lows of 24°C (75°F). September falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in Dumai in September

Dumai is in the rainy season in September, with rain on around 17 days and an average of 266 mm (10 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Dumai in September

Dumai in September gets highs of 33°C (91°F) during the day and drops to 24°C (75°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about.

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For a detailed overview over the year and the best time to visit Indonesia, check out our Dumai's climate page.

Dumai Temperature in September

Min Temperature 24°C (75°F)  

Max Temperature 33°C (91°F)  

Chance of Rain 57%  

Precipitation 266 mm (10 in)  

Rainy days 17 days  

What to Wear in Dumai in September

Warm but pleasant conditions in Dumai in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.

What To Do in Dumai in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Indonesia, check out our Dumai's climate page.

More climate data for Dumai

Temperature Rainfall

See the full Dumai climate overview or explore weather in Indonesia.