Frequent average weather in Sofia through the whole of May is 13. Average high degrees are usually 20 and lows around 9. See our table below for a full breakdown:
| Month | Degrees Celsius |
|---|---|
| Temperature | 13 |
| High Temperature | 20 |
| Low Temperature | 9 |
| Sunshine Per Day | 8 |
Useful Links: Sofia Weather: Average Weather & Yearly Climate