Watertown Climate: Weather by Month and Best Time to Visit
Best months for Watertown: September, August, July, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -6°C | -14°C | 22 mm | 5 | – | – | 4.4 |
| February | -3°C | -12°C | 22 mm | 5 | – | – | 4.4 |
| March | 4°C | -5°C | 41 mm | 6 | – | – | 4.9 |
| April | 13°C | 1°C | 71 mm | 9 | – | – | 6.2 |
| May | 20°C | 8°C | 88 mm | 11 | – | – | 7.2 |
| June | 25°C | 14°C | 111 mm | 12 | – | – | 7.4 |
| July | 28°C | 17°C | 79 mm | 9 | – | – | 7.8 |
| August | 26°C | 15°C | 82 mm | 9 | – | – | 7.9 |
| September | 22°C | 11°C | 64 mm | 8 | – | – | 8.0 |
| October | 14°C | 4°C | 56 mm | 7 | – | – | 6.9 |
| November | 5°C | -4°C | 32 mm | 5 | – | – | 5.3 |
| December | -3°C | -10°C | 24 mm | 5 | – | – | 4.4 |