Suisun Climate: Weather by Month and Best Time to Visit
Best months for Suisun: June, September, July, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 15°C | 6°C | 109 mm | 9 | – | – | 6.6 |
| February | 17°C | 7°C | 108 mm | 9 | – | – | 7.0 |
| March | 20°C | 8°C | 78 mm | 8 | – | – | 7.6 |
| April | 22°C | 9°C | 34 mm | 5 | – | – | 8.4 |
| May | 26°C | 12°C | 18 mm | 3 | – | – | 8.6 |
| June | 29°C | 14°C | 4 mm | 1 | – | – | 8.9 |
| July | 30°C | 14°C | 0 mm | 0 | – | – | 8.7 |
| August | 30°C | 14°C | 1 mm | 0 | – | – | 8.7 |
| September | 30°C | 14°C | 2 mm | 0 | – | – | 8.8 |
| October | 26°C | 12°C | 23 mm | 3 | – | – | 8.7 |
| November | 19°C | 8°C | 50 mm | 6 | – | – | 7.9 |
| December | 15°C | 6°C | 101 mm | 9 | – | – | 6.6 |