Tsiroanomandidy climate — normals and trends
Tsiroanomandidy (Madagascar) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 21.4 °C and it receives 1,421 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 October (23.2 °C on average) and the coldest is July (18.2 °C). Rainfall peaks in January.
Tsiroanomandidy averages 0 frost days, 41 hot days (≥ 30 °C) and 139 rainy days per year.
Tsiroanomandidy has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.2 °C (on 12 October 2010) and the coldest 5.7 °C (on 9 June 1993).
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
TsiroanomandidyBongolava
- coords
- -18.77°, 46.05°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.4°C
Average daily high
27.3°C
Average daily low
16.6°C
Annual rainfall
1,421mm
Sunshine / day
10.8h
Mean relative humidity
69%
Average peak wind
12.4km/h
Seasonal range
5.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
41 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.4 °C
Average feels-like low
17.2 °C
Average peak gust
29.1 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.81 · 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
37.2 °C
12 October 2010
Coldest day
5.7 °C
9 June 1993
Wettest day
223 mm
21 January 2020
Windiest day
54.8 km/h
24 March 1941
Strongest gust
124.9 km/h
24 March 1941
Hottest feels-like
39.1 °C
27 October 2011
Coldest feels-like
3.7 °C
9 June 1993
Sunniest day
13.1 h
30 December 2008
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 | 29.8 °C | +2.0 °C | 227 mm | -93 mm |
| Feb | 28.2 °C | +0.5 °C | 334 mm | +59 mm |
| Mar | 29.4 °C | +1.5 °C | 112 mm | -95 mm |
| Apr | 29.8 °C | +2.3 °C | 43 mm | -16 mm |
| May | 28.4 °C | +2.3 °C | 40 mm | +27 mm |
| Jun | 26.9 °C | +2.1 °C | 0 mm | -2 mm |
| Jul | 26.5 °C | +1.7 °C | 1 mm | -4 mm |
| Aug | 27.6 °C | +1.5 °C | 2 mm | -2 mm |
| Sep | 30.4 °C | +2.0 °C | 5 mm | -6 mm |
| Oct | 31.1 °C | +1.5 °C | 10 mm | -58 mm |
| Nov | 29.8 °C | +0.8 °C | 189 mm | +22 mm |
| Dec | 28.2 °C | -0.1 °C | 405 mm | +116 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 Tsiroanomandidy?
Tsiroanomandidy has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 21.4 °C and it receives 1,421 mm of precipitation per year.
What is the hottest day ever recorded in Tsiroanomandidy?
The hottest day measured in Tsiroanomandidy between 1940 and 2025 was 12 October 2010, reaching 37.2 °C.
What is the coldest day in Tsiroanomandidy?
The coldest day measured in Tsiroanomandidy between 1940 and 2025 was 9 June 1993, at 5.7 °C.
Does it snow in Tsiroanomandidy?
Almost never: Tsiroanomandidy sees virtually no snow, with about 0 frost days per year.
Has the climate of Tsiroanomandidy warmed?
Yes: Tsiroanomandidy warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tsiroanomandidy?
The wettest day measured in Tsiroanomandidy between 1940 and 2025 was 21 January 2020, with 223 mm of rain in 24 hours.
What was the windiest day in Tsiroanomandidy?
The windiest day measured in Tsiroanomandidy between 1940 and 2025 was 24 March 1941, with winds reaching 54.8 km/h.
What is the warmest month in Tsiroanomandidy?
The warmest month in Tsiroanomandidy is October (23.2 °C on average); the coldest is July (18.2 °C).
How much does it rain in Tsiroanomandidy?
Tsiroanomandidy receives on average 1,421 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Tsiroanomandidy?
Tsiroanomandidy gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Tsiroanomandidy?
Yes: Tsiroanomandidy has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tsiroanomandidy?
In Tsiroanomandidy, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 27 October 2011, and the lowest was 3.7 °C on 9 June 1993.
Compare Tsiroanomandidy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tsiroanomandidy