Watertown Climate: Weather by Month and Best Time to Visit
Best months for Watertown: September, July, August, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -2°C | -10°C | 41 mm | 8 | – | – | 4.0 |
| February | 0°C | -8°C | 40 mm | 7 | – | – | 4.2 |
| March | 7°C | -3°C | 58 mm | 9 | – | – | 5.1 |
| April | 14°C | 3°C | 94 mm | 12 | – | – | 6.2 |
| May | 21°C | 10°C | 96 mm | 12 | – | – | 7.2 |
| June | 26°C | 15°C | 99 mm | 12 | – | – | 7.4 |
| July | 28°C | 18°C | 83 mm | 10 | – | – | 7.8 |
| August | 26°C | 17°C | 90 mm | 10 | – | – | 7.7 |
| September | 23°C | 12°C | 73 mm | 9 | – | – | 7.9 |
| October | 15°C | 6°C | 72 mm | 9 | – | – | 6.9 |
| November | 7°C | 0°C | 52 mm | 7 | – | – | 5.5 |
| December | 0°C | -6°C | 48 mm | 8 | – | – | 4.0 |