The weather in Alajuela in March is hot. The average temperatures are between 18°C and 30°C. Usually the days in March are hot while the nights are a bit cooler.
You can expect about 3 to 8 days of rain in Alajuela during the month of March. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Alajuela in March 2025.
If you’re planning to visit Alajuela in the near future, we highly recommend that you review the 14 day weather forecast for Alajuela before you arrive.
Temperatures
30° / 18°
Rainy Days
3
Snowy Days
0
Dry Days
28
Rainfall
50
mm
Sun Hours
11.5
Hrs
