Sumatra weather in September
Are you planning a trip to Sumatra in September and wondering what kind of weather to expect? This page has all the details you need.
What is the weather like in Sumatra in September?
Sumatra is a region in Indonesia. September in Sumatra generally has temperatures that range from warm to very warm, with precipitation levels ranging from moderate to heavy.
The average highest temperatures fluctuate between warm in Tuk Tuk at 27°C to very warm in Jambi at 33°C. Nighttime temperatures generally drop to 24°C in Jambi and 19°C in Tuk Tuk. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.
In September, precipitation varies across different areas. From moderate rainfall in Kalianda with an average of 74 mm to heavy rainfall in Matur with 403 mm. Most areas experience a moderate amount of sunshine, with approximately 122 hours of sunlight expected in Medan. This makes it neither too gloomy nor overly bright.
For specific regional insights in Sumatra for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Sumatra climate page.
Where to go in Sumatra in September
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Popular destinations in Sumatra
What is the weather like in September for the 5 most popular destinations in Sumatra?
Average weather in Medan
In September Medan generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 23°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Pekanbaru
In September Pekanbaru generally has very high temperatures with maximum daytime temperatures around 33°C, minimum nighttime temperatures around 24°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Tanjungpandan
In September Tanjungpandan generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 25°C and high monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Bukittinggi
In September Bukittinggi generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 19°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Matur
In September Matur generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 20°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Sumatra, in Indonesia.
Is September the best time to visit Sumatra?
Given the typically poor weather conditions in Medan, September may not be the ideal time to visit Sumatra.
Generally speaking, the best visiting conditions can be found in February offering mostly tolerable weather in Medan. In contrast, January, April, May, June, July, August, September, October, November and December tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Sumatra.
Interested in the weather conditions in a specific month? Select the month below.
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