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Normal weather for Indonesia in September

It's hot in September in Indonesia with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 23°C and 26°C.

In September, there is an average of 88 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Indonesia in September

New York
Temperature Average Temperature
30°C 27°C
Sun High Temp
31°C 31°C
Sun Low Temp
29°C 21°C
Rain Total Precipitation
88 mm 57 mm
Rain Rainy Days
13 days 9 days

Start of September

The month of September starts in Indonesia with hot temps, averaging around 30°C during the day and nights around 25°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

Mid September

By mid-September, daytime temps stay steady at around 30°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

End of September

By the end of September, the average daytime temperature in Indonesia is around 31°C, while nighttime temps are about 25°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

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UV index

The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Is September a good time to visit Indonesia?

September is a good month to be in Indonesia for sunny weather. You’ll have high temperatures and not too much rain.

Temperature records for Indonesia in September

Check out the climate of Indonesia for all months and discover the best travel time

The climate in Indonesia is based on weather data from Bali. Other places, like Java, Gili Air or Lombok, might have different weather. You can check out all destinations in Indonesia to get the full picture of the climate.

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Daily Temperature in September in Indonesia

This chart shows the average daily high and low temperatures in September for Indonesia, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in September in Indonesia

Daily Precipitation in September in Indonesia

The chart below shows the average daily precipitation in September for Indonesia, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 13 days of precipitation in Indonesia.

Daily Precipitation in September in Indonesia

Daily UV Index in September in Indonesia

This chart shows the average daily UV index in September in Indonesia, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in September in Indonesia

Temperature in September in Indonesia Over the Years

This chart shows the average temperature in September in Indonesia, measured in degrees Celsius, over the past few years.

Temperature in September in Indonesia Over the Years

Total Precipitation in September in Indonesia Over the Years

This chart shows the average precipitation in September in Indonesia, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in September in Indonesia Over the Years

Daily Climate in September for Indonesia

Click on any day in September to get detailed info about the usual weather on that day in Indonesia. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in September in Indonesia

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Average Weather in Indonesia by Month

Click on a month below to see detailed weather info for Indonesia. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Indonesia for all months at once

Islands in Indonesia

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