Climate of Sumy, Ukraine
Area-weighted average across Sumy. For where people actually live and travel, see the cities below.
Sumy, a subdivision of Ukraine, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -6.5°C / 20.3°F in January to 18.8°C / 65.8°F in July, with rainfall from 35 mm / 1.4 in to 81 mm / 3.2 in depending on the season (611 mm / 24.1 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -6.5°C20.3°F | 43 mm1.7″ | Snowy |
| February | -5.6°C21.9°F | 35 mm1.4″ | Snowy |
| March | -0.6°C30.9°F | 36 mm1.4″ | Snowy |
| April | 7.8°C46°F | 42 mm1.7″ | — |
| May | 14.4°C57.9°F | 52 mm2″ | — |
| June | 17.6°C63.7°F | 71 mm2.8″ | — |
| July | 18.8°C65.8°F | 81 mm3.2″ | — |
| August | 17.7°C63.9°F | 60 mm2.4″ | — |
| September | 12.6°C54.7°F | 49 mm1.9″ | — |
| October | 6.4°C43.5°F | 43 mm1.7″ | — |
| November | 0.1°C32.2°F | 50 mm2″ | Snowy |
| December | -4.2°C24.4°F | 49 mm1.9″ | Snowy |
Frequently asked questions
What is the best time to visit Sumy?
Sumy, Ukraine does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 18.8°C / 65.8°F, and the driest is February at 35 mm / 1.4 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Sumy?
Sumy, Ukraine has area-weighted monthly average temperatures ranging from -6.5°C / 20.3°F in January to 18.8°C / 65.8°F in July. Annual rainfall averages about 611 mm / 24.1 in, with the wettest month being July (81 mm / 3.2 in) and the driest February (35 mm / 1.4 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Sumy?
The hottest month in Sumy is July, with an area-wide average temperature of 18.8°C / 65.8°F.
What is the coldest month in Sumy?
The coldest month in Sumy is January, with an area-wide average temperature of -6.5°C / 20.3°F.
When does it rain most in Sumy?
The wettest month in Sumy is July, averaging about 81 mm / 3.2 in of rainfall. The driest is February with about 35 mm / 1.4 in.