Climate of Sumatra

Sumatra has a semi-arid climate. It hardly rains here. The average annual temperature for Sumatra is 14° degrees and there is about 211 mm of rain in a year. It is dry for 211 days a year with an average humidity of 59% and an UV-index of 4.

Climate averages for the whole year

Day: the average daily temperature during the day is between -1°C and 31°C
Night:the average nighttime temperature is between -8°C and 18°C
Rain: it rains 91 days and there is a total of approximately 212 mm rainfall
Snow: it snows an average of 46 days per year
Sun hours: throughout the year there are 3115 sun hours

Maximum temperature:	between -1°C and 31°C
Warmest month:	31°C in July
Coldest month:	-1°C in January
Night temperature:	between -8°C and 18°C
Dry days:	228 days
Days with rain:	91 days
Days with snow:	46 days
Total rain sum:	212 mm
Hours of sunshine:	3115 hours

Climate of Sumatra
Temperature graph
Precipitation graph
Climate chart of Sumatra
The best travel time for Sumatra
Climate of Sumatra by month
Experiences with the weather of Sumatra

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Sumatra.

Precipitation graph

This graph shows the average amount of rainfall per month for Sumatra.

Climate table of Sumatra

In this climate table you can see at a glance what the average weather per month is for Sumatra. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Sumatra might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	-1	0	7	13	19	25	31	29	24	15	6	-1
Night temp. (°C)	-8	-8	-2	3	8	13	18	17	13	6	-2	-8
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	13	14	16	24	38	21	13	19	14	18	10	12
Days with rain	4	4	8	11	12	10	8	9	7	9	5	4
Days with snow	10	10	6	4	-	-	-	-	-	1	5	10
Dry days	17	14	17	15	19	20	23	22	23	21	20	17
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	5	5	8	10	11	12	12	12	11	6	6	5
Wind force (Bft)	3	3	3	3	3	3	3	3	3	3	3	3
UV-index	2	2	2	3	5	6	7	6	4	3	2	2

Best time to visit Sumatra

The best time to visit Sumatra in the state of Montana is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Sumatra is 31°C in July and the lowest is -1°C in January.

Climate of Sumatra by month

What is the average climate in a given month for Sumatra? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January