Sumy in May
7.2out of 10
Possible, with caveats
Mild: highs around 20°C. Frequent rain: about 12 rainy days.
20°CAvg high
9°CAvg low
12Rainy days (62 mm)
15:18 hDaylight
04:58Sunrise · 20:16 Sunset
Why this score
- Mild: highs around 20°C
- Frequent rain: about 12 rainy days
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±3.9 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -8°C | 42 mm | 10 | – | – | 3.8 |
| February | -2°C | -8°C | 35 mm | 9 | – | – | 3.9 |
| March | 4°C | -3°C | 42 mm | 10 | – | – | 4.6 |
| April | 14°C | 4°C | 43 mm | 9 | – | – | 6.5 |
| May | 20°C | 9°C | 62 mm | 12 | – | – | 7.2 |
| June | 24°C | 13°C | 66 mm | 11 | – | – | 7.6 |
| July | 26°C | 15°C | 73 mm | 11 | – | – | 7.6 |
| August | 25°C | 13°C | 47 mm | 7 | – | – | 8.1 |
| September | 19°C | 9°C | 52 mm | 8 | – | – | 7.5 |
| October | 11°C | 3°C | 49 mm | 9 | – | – | 6.2 |
| November | 3°C | -2°C | 41 mm | 8 | – | – | 4.7 |
| December | -1°C | -6°C | 41 mm | 9 | – | – | 3.9 |
Frequently asked questions
How hot is Sumy in May?
Daytime highs average 20°C and nights about 9°C.
When is the best time to visit Sumy?
The best months are August, June, July, September.