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

Look at detailed online map of Sumatra

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

Sumatra air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	11.4	11.1	10.8	27.9	30.2	29.0	39.0	37.6	34.2	27.5	15.9	15.4
Average daytime temperature (°C)	3.0	3.4	2.1	13.4	23.0	24.0	30.6	31.0	25.2	13.1	9.2	6.8
Average temperature (°C)	-1.9	-2.4	-3.5	5.9	16.3	18.2	23.8	23.5	18.3	6.9	3.7	1.8
Average night temperature (°C)	-5.0	-6.5	-7.4	0.5	10.4	13.1	16.8	17.3	12.7	2.6	-0.2	-1.6
Absolute minimum temperature (°C)	-18.5	-31.5	-17.3	-9.5	4.3	7.9	9.1	13.0	7.3	-17.2	-10.9	-8.8

Sumatra monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	8.0
Daylight mean duration (h)	9.1	10.3	11.9	13.6	15.0	15.8	15.4	14.2	12.6	10.9	9.4	8.6
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	8.0	8.0
Sunshine mean duration (h)	6.1	6.9	7.4	10.0	11.6	12.1	13.6	11.4	10.2	7.2	6.8	6.3
Precipitation (mm)	8	25	24	45	46	113	15	16	37	29	10	9
Sunny days	23	15	12	18	13	8	23	23	20	17	22	22
Rainy days	1	7	5	8	18	22	8	8	10	12	7	5
Snow days	7	6	14	4	0	0	0	0	0	2	1	4

Sumatra - weather forecast by months

Sumatra weather in january Sumatra weather in february Sumatra weather in march Sumatra weather in april Sumatra weather in may Sumatra weather in june Sumatra weather in july Sumatra weather in august Sumatra weather in september Sumatra weather in october Sumatra weather in november Sumatra 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