Ihosy climate — normals and trends
Ihosy has a humid subtropical, dry winter climate, averaging 19.8 °C annually with 831 mm of rain per year.
Climate normals · ERA5
IhosyIhorombe
- coords
- -22.40°, 46.13°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
19.8°C
Average daily high
25.8°C
Average daily low
15.6°C
Annual rainfall
831mm
Sunshine / day
10.5h
Mean relative humidity
77%
Average peak wind
15.5km/h
Seasonal range
7.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.8 °C
Average feels-like low
15.9 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
20 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
36.7 °C
27 October 2011
Coldest day
2.6 °C
18 July 1976
Wettest day
168 mm
30 January 2011
Windiest day
46.6 km/h
6 February 2022
Strongest gust
114.1 km/h
6 February 2022
Hottest feels-like
39.8 °C
20 December 2024
Coldest feels-like
-0.4 °C
18 July 1976
Sunniest day
13.4 h
22 December 1944
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.1 °C | +3.4 °C | 190 mm | -6 mm |
| Feb | 27.6 °C | +0.1 °C | 238 mm | +92 mm |
| Mar | 27.6 °C | +0.7 °C | 64 mm | -41 mm |
| Apr | 28.9 °C | +3.0 °C | 13 mm | -19 mm |
| May | 25.4 °C | +1.5 °C | 6 mm | -7 mm |
| Jun | 23.8 °C | +1.8 °C | 1 mm | -4 mm |
| Jul | 21.5 °C | -0.1 °C | 5 mm | -2 mm |
| Aug | 23.8 °C | +0.7 °C | 6 mm | -0 mm |
| Sep | 27.0 °C | +1.2 °C | 6 mm | -2 mm |
| Oct | 28.0 °C | 0.0 °C | 19 mm | -16 mm |
| Nov | 29.9 °C | +1.3 °C | 59 mm | -31 mm |
| Dec | 27.7 °C | -0.4 °C | 219 mm | +32 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Ihosy (Madagascar) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 19.8 °C and it receives 831 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 (22.6 °C on average) and the coldest is July (15.6 °C). Rainfall peaks in January.
Ihosy averages 0 frost days, 33 hot days (≥ 30 °C) and 95 rainy days per year.
Ihosy has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.7 °C (on 27 October 2011) and the coldest 2.6 °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.
Compare Ihosy with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ihosy
Other cities — Madagascar
Frequently asked questions
What is the climate of Ihosy?
Ihosy has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.8 °C and it receives 831 mm of precipitation per year.
What is the hottest day ever recorded in Ihosy?
The hottest day measured in Ihosy between 1940 and 2025 was 27 October 2011, reaching 36.7 °C.
What is the coldest day in Ihosy?
The coldest day measured in Ihosy between 1940 and 2025 was 18 July 1976, at 2.6 °C.
Does it snow in Ihosy?
Almost never: Ihosy sees virtually no snow, with about 0 frost days per year.
Has the climate of Ihosy warmed?
Yes: Ihosy warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ihosy?
The wettest day measured in Ihosy between 1940 and 2025 was 30 January 2011, with 168 mm of rain in 24 hours.
What was the windiest day in Ihosy?
The windiest day measured in Ihosy between 1940 and 2025 was 6 February 2022, with winds reaching 46.6 km/h.
What is the warmest month in Ihosy?
The warmest month in Ihosy is January (22.6 °C on average); the coldest is July (15.6 °C).
How much does it rain in Ihosy?
Ihosy receives on average 831 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Ihosy?
Ihosy gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Ihosy?
Yes: Ihosy has on average 20 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ihosy?
In Ihosy, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 20 December 2024, and the lowest was -0.4 °C on 18 July 1976.
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