Grand Island Climate: Weather by Month and Best Time to Visit
Best months for Grand Island: September, August, June, October.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 2°C | -8°C | 20 mm | 4 | – | – | 4.7 |
| February | 5°C | -6°C | 24 mm | 5 | – | – | 5.2 |
| March | 12°C | -1°C | 50 mm | 7 | – | – | 6.3 |
| April | 18°C | 4°C | 85 mm | 10 | – | – | 7.1 |
| May | 23°C | 11°C | 129 mm | 12 | – | – | 7.2 |
| June | 29°C | 17°C | 104 mm | 10 | – | – | 7.6 |
| July | 31°C | 19°C | 76 mm | 9 | – | – | 7.3 |
| August | 30°C | 18°C | 76 mm | 9 | – | – | 7.7 |
| September | 26°C | 13°C | 60 mm | 7 | – | – | 8.2 |
| October | 19°C | 6°C | 64 mm | 7 | – | – | 7.6 |
| November | 10°C | -1°C | 33 mm | 5 | – | – | 6.4 |
| December | 4°C | -6°C | 27 mm | 4 | – | – | 5.0 |