-4 to 27°C
temperature
2447 hours
sunshine per day
343 mm
rain
178 days
dry
116 days
rain
71 days
snow

Climate of Sumy

Sumy has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Sumy is 12° degrees and there is about 343 mm of rain in a year. It is dry for 170 days a year with an average humidity of 78% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -4°C and 27°C
  • Night:the average nighttime temperature is between -9°C and 15°C
  • Rain: it rains 116 days and there is a total of approximately 343 mm rainfall
  • Snow: it snows an average of 71 days per year
  • Sun hours: throughout the year there are 2447 sun hours
Maximum temperature: between -4°C and 27°C
Warmest month: 27°C in July
Coldest month: -4°C in January
Night temperature: between -9°C and 15°C
Dry days: 178 days
Days with rain: 116 days
Days with snow: 71 days
Total rain sum: 343 mm
Hours of sunshine: 2447 hours

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Temperature graph

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

Precipitation graph

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

Climate table of Sumy

In this climate table you can see at a glance what the average weather per month is for Sumy. 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 Sumy might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) -4 -2 3 14 22 25 27 27 20 11 4 -1
Night temp. (°C) -9 -7 -3 4 10 13 15 14 10 4 0 -5
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 31 24 30 19 37 39 35 19 18 27 22 42
Days with rain 4 5 10 12 15 14 14 8 9 10 7 8
Days with snow 19 15 14 1 - - - - - 1 5 16
Dry days 8 8 7 17 16 16 17 23 21 20 18 7
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 2 2 4 9 10 11 11 11 9 6 4 2
Wind force (Bft) 3 3 3 3 2 2 2 2 2 2 3 3
UV-index 1 1 2 4 5 5 6 5 3 2 1 1

Best time to visit Sumy

The best time to visit Sumy in Ukraine is from May through September. In this period you have a warm temperature and almost no precipitation. The highest average temperature in Sumy is 27°C in July and the lowest is -4°C in January.

Climate of Sumy by month

What is the average climate in a given month for Sumy? 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.

Sumy weather experiences

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