In terms of precipitation, rainfall in Fianarantsoa ranges from 0.4 - 32.3 inches per month. February is typically the wettest month, when rainfall can reach 32.3 in. August is typically the driest time to visit Fianarantsoa when rainfall is around 0.4 in.
If weather is an important factor for your trip to Fianarantsoa, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 59.0 F).