Fianarantsoa climate — normals and trends
Fianarantsoa (Madagascar) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 17.6 °C and it receives 1,167 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is January (20.3 °C on average) and the coldest is July (13.6 °C). Rainfall peaks in January.
Fianarantsoa averages 0 frost days, 1 hot days (≥ 30 °C) and 141 rainy days per year.
Fianarantsoa has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.5 °C (on 29 November 2023) and the coldest 2.8 °C (on 18 July 1976).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
FianarantsoaUpper Matsiatra
- coords
- -21.45°, 47.09°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.6°C
Average daily high
22.7°C
Average daily low
13.8°C
Annual rainfall
1,167mm
Sunshine / day
10.4h
Mean relative humidity
81%
Average peak wind
15.1km/h
Seasonal range
6.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.4 °C
Average feels-like low
13.6 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.77 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
33.5 °C
29 November 2023
Coldest day
2.8 °C
18 July 1976
Wettest day
169 mm
11 March 2010
Windiest day
51.8 km/h
6 February 2022
Strongest gust
124.2 km/h
5 February 2022
Hottest feels-like
36.0 °C
29 November 2023
Coldest feels-like
0.1 °C
18 July 1976
Sunniest day
13.3 h
28 December 2016
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 27.9 °C | +3.0 °C | 306 mm | +47 mm |
| Feb | 25.6 °C | +0.9 °C | 403 mm | +185 mm |
| Mar | 25.0 °C | +0.8 °C | 83 mm | -77 mm |
| Apr | 25.6 °C | +2.4 °C | 48 mm | -5 mm |
| May | 22.1 °C | +0.9 °C | 26 mm | +2 mm |
| Jun | 20.8 °C | +1.5 °C | 7 mm | -7 mm |
| Jul | 18.7 °C | +0.1 °C | 20 mm | +3 mm |
| Aug | 20.8 °C | +1.0 °C | 16 mm | +1 mm |
| Sep | 23.7 °C | +1.5 °C | 18 mm | +2 mm |
| Oct | 24.2 °C | -0.2 °C | 52 mm | +3 mm |
| Nov | 26.3 °C | +1.1 °C | 135 mm | +16 mm |
| Dec | 24.9 °C | -0.3 °C | 247 mm | +22 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Fianarantsoa?
Fianarantsoa has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 17.6 °C and it receives 1,167 mm of precipitation per year.
What is the hottest day ever recorded in Fianarantsoa?
The hottest day measured in Fianarantsoa between 1940 and 2025 was 29 November 2023, reaching 33.5 °C.
What is the coldest day in Fianarantsoa?
The coldest day measured in Fianarantsoa between 1940 and 2025 was 18 July 1976, at 2.8 °C.
Does it snow in Fianarantsoa?
Almost never: Fianarantsoa sees virtually no snow, with about 0 frost days per year.
Has the climate of Fianarantsoa warmed?
Yes: Fianarantsoa warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Fianarantsoa?
The wettest day measured in Fianarantsoa between 1940 and 2025 was 11 March 2010, with 169 mm of rain in 24 hours.
What was the windiest day in Fianarantsoa?
The windiest day measured in Fianarantsoa between 1940 and 2025 was 6 February 2022, with winds reaching 51.8 km/h.
What is the warmest month in Fianarantsoa?
The warmest month in Fianarantsoa is January (20.3 °C on average); the coldest is July (13.6 °C).
How much does it rain in Fianarantsoa?
Fianarantsoa receives on average 1,167 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in Fianarantsoa?
Fianarantsoa gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Fianarantsoa?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Fianarantsoa.
What was the most extreme apparent temperature in Fianarantsoa?
In Fianarantsoa, between 1940 and 2025, the highest apparent temperature reached 36.0 °C on 29 November 2023, and the lowest was 0.1 °C on 18 July 1976.
Compare Fianarantsoa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Fianarantsoa