Indonesia weather in September

Are you planning a trip to Indonesia in September and wondering what kind of weather to expect? Look no further than this page for all the information you need.

What is the weather like in Indonesia in September?

The weather conditions in Indonesia in September vary from poor to perfect depending on the destination.

During September in Indonesia, the average maximum temperature varies from high in Ambon with 26°C (79°F) to very high in Medan with 33°C (91°F). These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

Precipitation in September varies from almost none in Nembrala with an average of 0.4mm (0 inches) of rainfall to heavy in Tuk Tuk with 296mm (12 inches). It is also generally a sunny time of year with an average of 249 hours of sunshine in Ubud during the entire month.

To learn more about the weather conditions in specific areas of Indonesia, check out the map below.

Where to go in Indonesia in September

Find the average weather conditions in September for the most popular destinations in Indonesia on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

Popular destinations in Indonesia

What is the weather like in September for the 5 most popular destinations in Indonesia?

Average weather in Ubud

In September Ubud generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 20°C (68°F) and low monthly rainfall. So on average the conditions are perfect that month.

Ubud
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
31°C / 87°F 
19°C / 66°F 
255 hours 
27mm / 1.1" 
6 days 
31°C / 88°F 
20°C / 68°F 
249 hours 
29mm / 1.2" 
5 days 
October   >> October
>>  
32°C / 89°F 
21°C / 70°F 
251 hours 
96mm / 3.8" 
9 days 
Climate in Ubud

Average weather in Seminyak

In September Seminyak generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 20°C (68°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Seminyak
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
31°C / 88°F 
19°C / 67°F 
261 hours 
27mm / 1.1" 
4 days 
32°C / 89°F 
20°C / 68°F 
251 hours 
32mm / 1.3" 
3 days 
October   >> October
>>  
32°C / 90°F 
21°C / 71°F 
252 hours 
103mm / 4" 
6 days 
Climate in Seminyak

Average weather in Jakarta

In September Jakarta generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 23°C (74°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Jakarta
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
32°C / 89°F 
23°C / 74°F 
295 hours 
24mm / 1" 
14 days 
32°C / 89°F 
23°C / 74°F 
288 hours 
38mm / 1.5" 
14 days 
October   >> October
>>  
32°C / 90°F 
24°C / 75°F 
279 hours 
82mm / 3.2" 
19 days 
Climate in Jakarta

Average weather in Kuta

In September Kuta generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 20°C (68°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Kuta
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
31°C / 88°F 
19°C / 67°F 
261 hours 
27mm / 1.1" 
4 days 
32°C / 89°F 
20°C / 68°F 
251 hours 
32mm / 1.3" 
3 days 
October   >> October
>>  
32°C / 90°F 
22°C / 71°F 
252 hours 
103mm / 4" 
6 days 
Climate in Kuta

Average weather in Bandung

In September Bandung generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 21°C (70°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Bandung
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
31°C / 88°F 
21°C / 70°F 
249 hours 
34mm / 1.3" 
13 days 
31°C / 88°F 
21°C / 70°F 
211 hours 
54mm / 2.1" 
13 days 
October   >> October
>>  
32°C / 89°F 
22°C / 72°F 
215 hours 
162mm / 6.4" 
18 days 
Climate in Bandung

Is your destination not in the list? Have a look at other destinations in Indonesia.

Is September the best time to go to Indonesia?

In our opinion September is one of the best times to visit Indonesia with commonly perfect weather in Ubud. However, the weather conditions may vary depending on your destination.

On average the best time to visit Indonesia is in August and September with generally perfect weather in Ubud. The worst months are January, February, March and December that can have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Indonesia. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Indonesia? Get detailed historical weather averages for many cities in Indonesia.

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