Best year time to visit Sumatra

General weather information about Sumatra

Average annual temperature is 9.3 °C

Absolute maximum temperature: 39.0 °C

Absolute minimum temperature: -31.5 °C

Number of sunny days: 216 days

Number of rainy days: 111 days

Number of snow days: 38 days

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* Weather data for Sumatra United States is based on climate observations for 2026 year

Sumatra air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.411.110.827.930.229.039.037.634.227.515.915.4
Average daytime temperature (°C)3.03.42.113.423.024.030.631.025.213.19.26.8
Average temperature (°C)-1.9-2.4-3.55.916.318.223.823.518.36.93.71.8
Average night temperature (°C)-5.0-6.5-7.40.510.413.116.817.312.72.6-0.2-1.6
Absolute minimum temperature (°C)-18.5-31.5-17.3-9.54.37.99.113.07.3-17.2-10.9-8.8

Sumatra monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.311.913.615.015.815.414.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)6.16.97.410.011.612.113.611.410.27.26.86.3
Precipitation (mm)82524454611315163729109
Sunny days23151218138232320172222
Rainy days1758182288101275
Snow days7614400000214

Sumatra - weather forecast by months

Sumatra weather in januarySumatra weather in februarySumatra weather in marchSumatra weather in aprilSumatra weather in maySumatra weather in juneSumatra weather in julySumatra weather in augustSumatra weather in septemberSumatra weather in octoberSumatra weather in novemberSumatra weather in december

Best time to visit Sumatra:

The best time to visit Sumatra during the most sunny months:

  • May — 11.6(h)
  • June — 12.1(h)
  • July — 13.6(h)
  • August — 11.4(h)

Months with the longest average daylight duration in Sumatra:

  • June — 15.8(h)
  • July — 15.4(h)

The largest precipitation sum in Sumatra is at

  • April — 45(mm)
  • May — 46(mm)
  • June — 113(mm)

    • Weather forecast in the closest to Sumatra admin centers

    Weather forecast in the closest towns to Sumatra

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    Frequently asked questions

    When is the best time to visit Sumatra?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sumatra.
    What is the weather like in Sumatra?
    See average temperature, rainfall and daylight hours for Sumatra by month in the table above.
    How many sunny days does Sumatra have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sumatra throughout the year.