Climate averages 1991–2020
Sumy weather
in June.
A warm, moderately wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Sumy: daytime highs average 23.2°C and nights cool to about 13.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 67 mm of rain on roughly 11 days, which makes June a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 26 min on an average June day.
The nearest other city in this atlas is Konotop (117 km away). In June its highs average 23.1°C, about as warm as Sumy, with 65 mm of rain.
Among the 59 cities listed in Ukraine, Sumy ranks joint 43rd of 59 for the warmest June highs and joint 40th of 59 for the driest June (rainfall, lowest first). The mean June high of those 59 cities is 24.1°C; Sumy is 1.0°C cooler than that mean.
From June to July, average highs rise by 2.0°C to 25.2°C, and monthly rainfall rises from 67 mm to 73 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sumy climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.0°C-7.5°C | -7.5°C | 42 | 9.9 | 8.58 h |
| February | -1.9°C-7.8°C | -7.8°C | 35 | 8.9 | 10.010 h |
| March | 4.0°C-3.7°C | -3.7°C | 42 | 9.6 | 11.812 h |
| April | 13.2°C3.3°C | 3.3°C | 43 | 9.3 | 13.814 h |
| May | 19.5°C9.5°C | 9.5°C | 61 | 11.3 | 15.516 h |
| June, selected | 23.2°C13.7°C | 13.7°C | 67 | 11.0 | 16.416 h |
| July | 25.2°C15.9°C | 15.9°C | 73 | 11.2 | 16.016 h |
| August | 24.6°C15.0°C | 15.0°C | 47 | 7.6 | 14.615 h |
| September | 18.5°C10.1°C | 10.1°C | 51 | 8.2 | 12.713 h |
| October | 11.1°C4.4°C | 4.4°C | 50 | 8.8 | 10.811 h |
| November | 3.4°C-1.1°C | -1.1°C | 41 | 8.1 | 9.09 h |
| December | -1.4°C-5.6°C | -5.6°C | 40 | 9.2 | 8.08 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Konotop in JuneUkraine · 117 kmHigh 23.1°C · Low 13.9°C · 65 mm rain
- Belgorod in JuneRussia · 130 kmHigh 23.6°C · Low 14.2°C · 62 mm rain
- Kursk in JuneRussia · 132 kmHigh 22.7°C · Low 13.4°C · 63 mm rain
- Shostka in JuneUkraine · 140 kmHigh 22.6°C · Low 13.5°C · 63 mm rain
- Kharkiv in JuneUkraine · 146 kmHigh 24.3°C · Low 14.6°C · 61 mm rain
- Poltava in JuneUkraine · 149 kmHigh 24.3°C · Low 14.6°C · 60 mm rain
- Zheleznogorsk (Kursk Oblast), Russia in JuneRussia · 163 kmHigh 22.2°C · Low 13.3°C · 65 mm rain
- Gubkin in JuneRussia · 195 kmHigh 23.4°C · Low 13.9°C · 62 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sumy) is explained once on the Sumy year overview and on the Sources, method and limits page.