Bulgarian Coastal Climate
| Average Value | May | June | July | August | September | October |
|---|---|---|---|---|---|---|
| Daytime temperature, °C | 21 | 26 | 29 | 29 | 24 | 20 |
| Night temperature, °C | 12 | 16 | 18 | 17 | 15 | 11 |
| Sea water temperature, °C | 15 | 19 | 22 | 23 | 21 | 17 |
| Sunny hours per day | 8 | 10 | 11 | 11 | 8 | 6 |
| Rainy days per month | 6 | 6 | 3 | 3 | 4 | 5 |