| World Facts Index > Finland > Geography > Weather > Jomala |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 30 | 30 | 37 | 47 | 60 | 68 | 71 | 68 | 58 | 48 | 40 | 34 |
| Avg. Low | 24 | 22 | 27 | 34 | 44 | 52 | 56 | 54 | 48 | 41 | 34 | 26 |
| Mean | 27 | 27 | 32 | 40 | 51 | 60 | 64 | 61 | 54 | 46 | 37 | 30 |
| Avg. Precip. | 1.5 in | 1.1 in | 1.0 in | 1.3 in | 1.3 in | 1.8 in | 2.8 in | 2.6 in | 2.3 in | 2.0 in | 2.1 in | 1.8 in |
Fahrenheit temperature scale is used.