Fianarantsoa Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Fianarantsoa, Haute Matsiatra, Madagascar. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.
Fianarantsoa has a notably wet climate with abundant precipitation, recording 1445 mm (57 in) of rainfall per year. It does, however, have a distinct dry and rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Fianarantsoa can be quite wet during January, receiving approximately 322 mm (13 in) of precipitation over 17 rainy days.
In contrast August, experiences much drier conditions, with 25 mm (1 in) of rainfall, spread across 9 rainy days.
January, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 193 hours of sunshine in this period. During the driest month August you can expect a temperature of 21°C (70°F). For more detailed insights into the city's temperatures, visit our Fianarantsoa Temperature page.
Daily Historical Precipitation
46-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Fianarantsoa's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Fianarantsoa spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Madagascar: City Comparison
The map below shows the annual precipitation across Madagascar. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Fianarantsoa vs World: Rainfall Compared
Fianarantsoa's average annual precipitation is 1445 mm (57 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Fianarantsoa's weather, including sunshine hours, humidity levels, and temperature data, visit our Fianarantsoa Climate page.
