Karatsu Climate: Weather by Month and Best Time to Visit
Best months for Karatsu: October.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 9°C | 6°C | 78 mm | 12 | – | – | 5.5 |
| February | 10°C | 6°C | 81 mm | 10 | – | – | 5.8 |
| March | 13°C | 8°C | 124 mm | 11 | – | – | 5.9 |
| April | 17°C | 12°C | 134 mm | 11 | – | – | 6.6 |
| May | 21°C | 17°C | 140 mm | 10 | – | – | 7.3 |
| June | 24°C | 21°C | 282 mm | 15 | – | – | 6.1 |
| July | 28°C | 25°C | 257 mm | 16 | – | – | 6.2 |
| August | 29°C | 26°C | 162 mm | 14 | – | – | 6.7 |
| September | 26°C | 22°C | 183 mm | 13 | – | – | 6.9 |
| October | 22°C | 18°C | 100 mm | 8 | – | – | 7.9 |
| November | 17°C | 13°C | 93 mm | 9 | – | – | 7.0 |
| December | 12°C | 8°C | 81 mm | 11 | – | – | 5.9 |