Soanierana Ivongo climate — normals and trends
Soanierana Ivongo (Madagascar) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 23.1 °C and it receives 3,048 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 February (25.8 °C on average) and the coldest is July (20.2 °C). Rainfall peaks in March.
Soanierana Ivongo averages 0 frost days, 26 hot days (≥ 30 °C) and 303 rainy days per year.
Soanierana Ivongo 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 36.6 °C (on 1 February 1973) and the coldest 14.3 °C (on 9 September 1947).
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
Soanierana IvongoAnalanjirofo
- coords
- -16.92°, 49.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.1°C
Average daily high
25.8°C
Average daily low
21.2°C
Annual rainfall
3,048mm
Sunshine / day
10.3h
Mean relative humidity
87%
Average peak wind
14.2km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
26 d/yr
Rainy days (≥ 1 mm)
303 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.7 °C
Average feels-like low
23.7 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
235 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °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
36.6 °C
1 February 1973
Coldest day
14.3 °C
9 September 1947
Wettest day
301 mm
28 January 1973
Windiest day
71.2 km/h
17 February 2008
Strongest gust
157.0 km/h
17 February 2008
Hottest feels-like
44.1 °C
23 February 2013
Coldest feels-like
13.9 °C
25 July 1996
Sunniest day
12.9 h
9 December 2025
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 | 30.0 °C | +1.3 °C | 313 mm | -36 mm |
| Feb | 31.1 °C | +2.3 °C | 314 mm | -23 mm |
| Mar | 29.6 °C | +1.5 °C | 355 mm | -22 mm |
| Apr | 28.6 °C | +1.8 °C | 162 mm | -130 mm |
| May | 26.1 °C | +0.9 °C | 420 mm | +172 mm |
| Jun | 24.3 °C | +0.9 °C | 202 mm | -51 mm |
| Jul | 22.8 °C | +0.3 °C | 282 mm | +2 mm |
| Aug | 23.1 °C | +0.4 °C | 160 mm | -75 mm |
| Sep | 24.3 °C | +0.7 °C | 142 mm | -18 mm |
| Oct | 25.5 °C | +0.4 °C | 179 mm | +49 mm |
| Nov | 28.4 °C | +1.6 °C | 268 mm | +127 mm |
| Dec | 28.7 °C | +0.6 °C | 465 mm | +216 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 Soanierana Ivongo?
Soanierana Ivongo has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.1 °C and it receives 3,048 mm of precipitation per year.
What is the hottest day ever recorded in Soanierana Ivongo?
The hottest day measured in Soanierana Ivongo between 1940 and 2025 was 1 February 1973, reaching 36.6 °C.
What is the coldest day in Soanierana Ivongo?
The coldest day measured in Soanierana Ivongo between 1940 and 2025 was 9 September 1947, at 14.3 °C.
Does it snow in Soanierana Ivongo?
Almost never: Soanierana Ivongo sees virtually no snow, with about 0 frost days per year.
Has the climate of Soanierana Ivongo warmed?
Yes: Soanierana Ivongo warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Soanierana Ivongo?
The wettest day measured in Soanierana Ivongo between 1940 and 2025 was 28 January 1973, with 301 mm of rain in 24 hours.
What was the windiest day in Soanierana Ivongo?
The windiest day measured in Soanierana Ivongo between 1940 and 2025 was 17 February 2008, with winds reaching 71.2 km/h.
What is the warmest month in Soanierana Ivongo?
The warmest month in Soanierana Ivongo is February (25.8 °C on average); the coldest is July (20.2 °C).
How much does it rain in Soanierana Ivongo?
Soanierana Ivongo receives on average 3,048 mm of precipitation per year, spread over about 303 rainy days.
Is it sunny in Soanierana Ivongo?
Soanierana Ivongo gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Soanierana Ivongo?
Yes: Soanierana Ivongo has on average 235 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Soanierana Ivongo?
In Soanierana Ivongo, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 23 February 2013, and the lowest was 13.9 °C on 25 July 1996.
Compare Soanierana Ivongo with another city
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Nearby cities
The climate around Soanierana Ivongo