What’s the climate like in Sumatra?
The current climate of Sumatra features average monthly temperatures ranging from highs of 33°C during the day to lows of 31°C. The average yearly temperature is around 32°C. At night, temperatures in the colder months average around 22°C and in the warmer months around 24°C.
The highest temperature recorded in Sumatra in recent years was 37°C in March 2022. The lowest daytime temperature recorded was 23°C in October 2022.
On average, Sumatra receives 2853 mm of precipitation each year. For comparison, UK gets 701 mm of precipitation annually.
Best time to visit Sumatra?
The best time to visit Sumatra for pleasant to warm weather is January through October and December. There might be some rain during this period, but the temperatures are just right for exploring Sumatra.
Climate Table of Sumatra
The climate table of Sumatra shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 31 | 32 | 32 | 33 | 33 | 32 | 32 | 32 | 33 | 31 | 32 | 31 |
| Temp. min (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 23 | 24 | 23 |
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| Precipitation (mm) | 237 | 214 | 252 | 324 | 250 | 171 | 130 | 203 | 160 | 255 | 380 | 277 |
| UV Index | 7 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 7 | 7 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 32°C
- Highest temperature: 33°C in April, May and September
- Lowest temperature: 31°C in January, October and December
- Precipitation: 2853 mm per year, averaging 238 mm per month
- Driest months: 130 mm in July, 160 mm in September and 171 mm in June
- Wettest months: 380 mm in November, 324 mm in April and 277 mm in December
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Table of Contents
Average Temperature per Month in Sumatra
This graph shows the average maximum temperatures per month in Sumatra, Indonesia. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Sumatra
This graph shows how much precipitation Sumatra, Indonesia, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Sumatra
This graph shows the average UV index per month in Sumatra, Indonesia. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Sumatra
This graph shows the average yearly temperature in Sumatra, Indonesia. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Sumatra
This chart shows the total yearly precipitation in Sumatra, Indonesia, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Sumatra
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Average Weather in Sumatra by Month
Click on a month below to see detailed weather info for Sumatra. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
