Central Islip Climate: Weather by Month and Best Time to Visit
Best months for Central Islip: July, September, June, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -1°C | 97 mm | 10 | – | – | 4.6 |
| February | 4°C | -1°C | 89 mm | 9 | – | – | 4.8 |
| March | 7°C | 2°C | 117 mm | 11 | – | – | 5.0 |
| April | 12°C | 7°C | 96 mm | 11 | – | – | 5.9 |
| May | 17°C | 12°C | 90 mm | 11 | – | – | 6.8 |
| June | 22°C | 18°C | 92 mm | 10 | – | – | 7.7 |
| July | 25°C | 22°C | 84 mm | 10 | – | – | 7.8 |
| August | 25°C | 21°C | 100 mm | 10 | – | – | 7.7 |
| September | 22°C | 18°C | 96 mm | 9 | – | – | 7.8 |
| October | 17°C | 13°C | 113 mm | 10 | – | – | 6.9 |
| November | 12°C | 7°C | 93 mm | 9 | – | – | 6.2 |
| December | 7°C | 3°C | 121 mm | 11 | – | – | 5.1 |