Average weather for Sumatra in May
It's warm in May in Sumatra with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 31°C. At night, you can expect temperatures between 17°C and 23°C.
Start of May
The month of May starts in Sumatra with hot temps, averaging around 28°C during the day and nights around 18°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid May
By mid-May, daytime temps rise to around 30°C, with nights around 21°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Sumatra is around 30°C, while nighttime temps are about 22°C. A shower might pop up, but overall, the weather will be dry and sunny.
In May, there is an average of 76 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the South.
Sumatra in May |
New York | ||
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29°C | 22°C | |
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31°C | 28°C | |
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27°C | -5°C | |
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76 mm | 105 mm | |
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8 days | 14 days |
UV index
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.
Is May a good time to visit Sumatra?
Looking for great weather? May is a good time to be in Sumatra. The temperatures are nice, and there’s not too much rain.
The hurricane season in Sumatra runs from June to November.
Temperature records
With 35°C in 2017, Sumatra reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 18°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 26°C.
Check out the climate of Sumatra for all months and discover the best travel time
Daily Temperature in May in Sumatra
This chart shows the average daily high and low temperatures in May for Sumatra, 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 Precipitation in May in Sumatra
The chart below shows the average daily precipitation in May for Sumatra, 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 May, you can expect about 8 days of precipitation 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 few years.
Total precipitation in May in Sumatra over the years
This chart shows the average precipitation in May in Sumatra, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Sumatra
Click on any day in May to get detailed info about the usual 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
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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.