Weather Avenue > 
Weather America > Costa Rica > 
Alajuela > 
| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 29°C | 12°C | 20°C |
| February | 31°C | 11°C | 20°C |
| March | 31°C | 10°C | 21°C |
| April | 31°C | 11°C | 21°C |
| May | 29°C | 14°C | 21°C |
| June | 27°C | 14°C | 20°C |
| July | 27°C | 14°C | 20°C |
| August | 28°C | 13°C | 20°C |
| September | 28°C | 14°C | 21°C |
| October | 27°C | 15°C | 20°C |
| November | 27°C | 13°C | 20°C |
| December | 28°C | 12°C | 20°C |
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