Sumatra
When to go?
Mean 26 °C, 18 rain days in the month (258 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 6 days in 10
Mean 27 °C, 16 rain days in the month (220 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 6 days in 10
Mean 27 °C, 19 rain days in the month (268 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 6 days in 10
Mean 27 °C, 20 rain days in the month (266 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 7 days in 10
Mean 27 °C, 18 rain days in the month (194 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 6 days in 10
Mean 27 °C, 13 rain days in the month (146 mm).
Against
- Hothighs of 32 °C
Mean 27 °C, 12 rain days in the month (147 mm).
Against
- Hothighs of 32 °C
Mean 27 °C, 13 rain days in the month (176 mm).
Against
- Hothighs of 32 °C
Mean 27 °C, 15 rain days in the month (188 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 5 days in 10
Mean 27 °C, 20 rain days in the month (246 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 6 days in 10
Mean 27 °C, 22 rain days in the month (306 mm).
Against
- Hothighs of 32 °C
- Often rainyrain on 7 days in 10
- Torrential rain14 mm per rain day
Mean 27 °C, 20 rain days in the month (303 mm).
Against
- Hothighs of 31 °C
- Often rainyrain on 6 days in 10
- Torrential rain15 mm per rain day
No ideal month: the best months are June–August, the least hot. Avoid September–May (hot and often rainy, at times torrential rain).
Climate zones
- Freezing, dry
- Freezing
- Freezing, wet
- Cold, dry
- Cold
- Cold, wet
- Mild, dry
- Mild
- Mild, wet
- Hot, arid
- Hot
- Hot, wet
- Torrid, arid
- Torrid
- Torrid, wet
Mean maximum and minimum temperature and mean monthly precipitation of the season (the mean of its three months), ERA5-Land 1996–2025, at about 9 km resolution: colours are in levels (the same as the city scale) and smaller details are not real.
What is the climate like?
Area mean indicative, over the whole territory
Temperature and rain
Monthly min and max temperature (°C)
Monthly min and max temperature (°C)
How much it rains
Rain days and how much water
Rain days and how much water
Bars: length = rain days, thickness = mm on a rain day, area = the month's rain. 3 mm a day7 mm a day15 mm a day
Colour = the month's rain: 103060100160250400mm
Daylight hours
Mean daylight hours over the whole territory.
Spatial mean over the whole area, weighted by area (cosine of the latitude), not by population: indicative only, since the climate varies a lot within an area (coasts, plains, mountains). Look at the cities for the weather you will find.