Normal weather for Sumatra in May
It's hot in May in Sumatra with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 24°C and 25°C.
In May, there is an average of 250 mm of precipitation, spread over 25 days. The wind speed is around 2 Bft, mostly coming from the South.
After some sun? Then May isn’t the best time to be in Sumatra. The temperature is pleasant, but there’s too much chance of rain this month.
Sumatra in May |
UK | ||
|---|---|---|---|
 Average Temperature |
33°C | 18°C | |
 High Temp |
34°C | 21°C | |
| Low Temp |
32°C | 15°C | |
 Total Precipitation |
250 mm | 46 mm | |
| Rainy Days |
25 days | 8 days | |
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Discover cheap holidays to Sumatra 
Start of May
The month of May starts in Sumatra with hot temperatures, averaging around 33°C during the day and nights close to 25°C. Plenty of days with a chance of precipitation.
Mid-May
By mid-May, the average daytime temperature stays the same at 33°C, with nights close to 25°C. The chance of precipitation is high during this period.
End of May
By the end of May, the average daytime temperature in Sumatra will be around 33°C, with nights close to 25°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Temperature records
With 37°C, Sumatra hit the highest temperature in the last 10 years in May 2022. The lowest daytime temperature in this month was 27°C in 2023. The extreme night temperatures ranged from a low of 21°C to a high of 27°C.
Check out the climate of Sumatra for all months and discover the best travel time
April
Plan your next holiday
Don’t miss the best holiday deals for Sumatra and see what our partners have for you.
Daily Temperature in May in Sumatra
This chart shows the average daily temperatures, both day and night, for each day in May in Sumatra, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Sumatra
The chart below shows the average daily precipitation in May for Sumatra, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 25 days of rain in Sumatra.
Daily UV Index in May in Sumatra
This chart shows the average daily UV index in May in Sumatra, 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.
Temperature in May in Sumatra Over the Years
This chart shows the average temperature in May in Sumatra, measured in degrees Celsius, over the past years.
Total Precipitation in May in Sumatra Over the Years
This chart shows the average precipitation in May in Sumatra, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Sumatra
Click on a specific day in May for detailed info on the typical weather on that day in Sumatra. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Sumatra
Have you been to Sumatra in May?
Share your weather experience in May in Sumatra.
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.
