Fianarantsoa Temperature by Month
Fianarantsoa in Haute Matsiatra, Madagascar sees moderate seasonal temperature shifts, with daytime highs between 20°C (68°F) in July and 27°C (81°F) in December, averaging 24°C (75°F) annually. Explore the full monthly breakdown below.
Fianarantsoa Monthly Temperatures
Seasonal changes in Fianarantsoa bring a little variety without extreme temperature swings. Nighttime lows range from 17°C (63°F) in December to 10°C (50°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Fianarantsoa by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. December, the city's warmest month, gets 192 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
46-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Fianarantsoa Temperatures: 1976-2026
Browse day-by-day temperature records for Fianarantsoa spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Fianarantsoa vs Madagascar
The map below shows the annual temperature across Madagascar. You can also select individual months if you want to compare a specific time of year.
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Fianarantsoa vs World: Temperature Compared
Fianarantsoa's average annual maximum temperature is 24°C (75°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Fianarantsoa's weather — including monthly rainfall, sunshine hours, and humidity — visit our Fianarantsoa climate page.
