
Sumy Weather December
Sumy is located in humid continental climate zone that is known for significant seasonal temperature variations warm or even hot summer and cold winter with roughly similar amounts of rainfall.
To help you choose the best time to travel, you can find climate data below on the weather in Sumy in December.
![]() | average daily high | -2°C |
![]() | average daily low | -6.8°C |
![]() | daytime | 8.7 h |
![]() | average monthly precipitation | 51 mm |
Temperature in Sumy
In December the average daily maximum in Sumy is -2°C, and the minimum -6.8°C.
The hottest December day on record is +11.5°C, and the coldest -29.5°C.
Best beach resorts in December:

Dubai
UAE

Phuket
Thailand

Bangkok
Thailand

Cancun
Mexico

Sanya
China

Pattaya
Thailand

Tulum
Mexico

Playa del Carmen
Mexico

Patong Beach
Thailand

Puerto Vallarta
Mexico

Acapulco
Mexico

Punta Cana
Dominican Republic
Daylight hours
There are 8.7 hours of daylight in Sumy in December.
Most Popular Destinations in the World
Precipitation
The amount of precipitation in Sumy in December is usually 51 mm, which may cause a change of plans on certain days.