Bulgaria has a temperate-continental climate with cold, wet winters and hot, dry summers. The spring, particularly April to June, is the best time to visit Bulgaria, and then again in October when temperatures are neither too hot or too cold.
The below climate charts have been compiled by Weather2Travel.com. For an explanation to the various measurements, please read our climate notes.
The higher the level of heat and humidity the more uncomfortable you are likely to feel. Humidity is not an issue at temperatures below about 24C (75F), no matter how high the humidity.
Heat & humidity keyThe World Health Organisation recommends protective measures be taken for all UV values over 2.
UV keyView:
J | F | M | A | M | J | J | A | S | O | N | D | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temp (C)(F) | 337 | 643 | 1152 | 1763 | 2272 | 2679 | 2984 | 2882 | 2577 | 1864 | 1254 | 643 |
Min temp (C)(F) | -425 | -228 | 134 | 643 | 1050 | 1355 | 1559 | 1559 | 1152 | 643 | 236 | -228 |
Sunshine hours | 3 | 4 | 5 | 7 | 8 | 9 | 10 | 10 | 8 | 6 | 4 | 3 |
Daylight hours | 9 | 11 | 12 | 13 | 15 | 15 | 15 | 14 | 12 | 11 | 10 | 9 |
Rainfall (mm)(in) | 492 | 392 | 452 | 462 | 723 | 663 | 522 | 331 | 381 | 462 | 572 | 582 |
Rainy Days | 7 | 7 | 7 | 7 | 9 | 7 | 5 | 5 | 4 | 5 | 6 | 8 |
Humidity | L | L | M | M | H | VH | VH | VH | H | M | L | L |
UV | 1/L | 2/L | 4/M | 5/M | 7/H | 8/VH | 9/VH | 8/VH | 6/H | 4/M | 2/L | 1/L |
Sea temp (C)(F) | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A |
J | F | M | A | M | J | J | A | S | O | N | D | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Avg temp (C)(F) | -130 | 134 | 540 | 1050 | 1558 | 1864 | 2068 | 1966 | 1661 | 1151 | 541 | 133 |
Sunshine hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Daylight hours | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Rainfall (mm)(in) | 30 | 30 | 40 | 50 | 70 | 80 | 60 | 40 | 40 | 30 | 50 | 40 |
Rainy Days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Humidity | – | – | – | – | – | – | – | – | – | – | – | – |
UV | – | – | – | – | – | – | – | – | – | – | – | – |
Sea temp (C)(F) | –– | –– | –– | –– | –– | –– | –– | –– | –– | –– | –– | –– |
J | F | M | A | M | J | J | A | S | O | N | D | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temp (C)(F) | 236 | 541 | 1152 | 1763 | 2373 | 2679 | 2882 | 2882 | 2475 | 1864 | 1152 | 541 |
Min temp (C)(F) | -523 | -327 | –32 | 541 | 1050 | 1355 | 1559 | 1559 | 1152 | 643 | 236 | -228 |
Sunshine hours | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 9 | 8 | 6 | 3 | 2 |
Daylight hours | 9 | 11 | 12 | 13 | 15 | 15 | 15 | 14 | 12 | 11 | 10 | 9 |
Rainfall (mm)(in) | 452 | 412 | 422 | 502 | 713 | 763 | 552 | 422 | 392 | 422 | 542 | 542 |
Rainy Days | 9 | 8 | 8 | 9 | 10 | 9 | 7 | 6 | 5 | 5 | 8 | 9 |
Humidity | L | L | M | M | H | VH | VH | H | M | M | L | L |
UV | 1/L | 2/L | 4/M | 5/M | 7/H | 8/VH | 8/VH | 7/H | 5/M | 3/M | 2/L | 1/L |
Sea temp (C)(F) | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A | N/AN/A |