| Month | Daily minimum (°C) | Daily maximum (°C) | Days of rain | Rainfall (mm) |
|---|---|---|---|---|
| January | 14.4 | 22.4 | 7.7 | 41.3 |
| February | 15.2 | 23.0 | 5.8 | 43.4 |
| March | 13.9 | 21.7 | 10.1 | 40.5 |
| April | 11.7 | 19.3 | 11.4 | 50.0 |
| May | 9.5 | 16.4 | 16.6 | 76.8 |
| June | 7.2 | 14.1 | 15.1 | 55.0 |
| July | 6.2 | 13.5 | 17.9 | 59.1 |
| August | 6.8 | 14.4 | 17.9 | 71.6 |
| September | 8.1 | 15.9 | 16.0 | 68.2 |
| October | 9.7 | 17.7 | 14.1 | 65.0 |
| November | 11.1 | 19.2 | 12.1 | 49.9 |
| December | 12.9 | 20.9 | 10.2 | 40.5 |
| Statistics provided by BOM for Point Lonsdale (nearest comparable weather site to Barwon Heads) | ||||