Mahajanga climate — normals and trends
Mahajanga (Madagascar) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.5 °C and it receives 1,277 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 April (27.7 °C on average) and the coldest is July (24.8 °C). Rainfall peaks in January.
Mahajanga averages 0 frost days, 179 hot days (≥ 30 °C) and 133 rainy days per year.
Mahajanga has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.1 °C (on 22 November 2023) and the coldest 17.9 °C (on 26 July 1996).
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
MahajangaBoeny
- coords
- -15.72°, 46.32°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.5°C
Average daily high
29.9°C
Average daily low
23.7°C
Annual rainfall
1,277mm
Sunshine / day
11.0h
Mean relative humidity
71%
Average peak wind
18.0km/h
Seasonal range
2.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
179 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.8 °C
Average feels-like low
26.0 °C
Average peak gust
30.2 km/h
Tropical nights (≥ 20 °C)
357 d/yr
Solar radiation
21.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.70 · 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
35.1 °C
22 November 2023
Coldest day
17.9 °C
26 July 1996
Wettest day
228 mm
11 April 1941
Windiest day
71.6 km/h
8 March 2004
Strongest gust
118.1 km/h
11 April 1941
Hottest feels-like
41.4 °C
9 January 1998
Coldest feels-like
15.6 °C
3 September 1993
Sunniest day
12.7 h
24 November 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.4 °C | +1.1 °C | 226 mm | -150 mm |
| Feb | 29.9 °C | +0.6 °C | 404 mm | +99 mm |
| Mar | 31.1 °C | +1.0 °C | 271 mm | +65 mm |
| Apr | 32.6 °C | +1.6 °C | 21 mm | -40 mm |
| May | 32.6 °C | +2.1 °C | 3 mm | -5 mm |
| Jun | 30.5 °C | +1.1 °C | 1 mm | -0 mm |
| Jul | 29.8 °C | +0.9 °C | 0 mm | -2 mm |
| Aug | 30.0 °C | +0.6 °C | 4 mm | +1 mm |
| Sep | 31.0 °C | +0.9 °C | 2 mm | -2 mm |
| Oct | 31.8 °C | +1.0 °C | 6 mm | -12 mm |
| Nov | 30.4 °C | -0.2 °C | 172 mm | +92 mm |
| Dec | 30.3 °C | +0.4 °C | 251 mm | +36 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 Mahajanga?
Mahajanga has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.5 °C and it receives 1,277 mm of precipitation per year.
What is the hottest day ever recorded in Mahajanga?
The hottest day measured in Mahajanga between 1940 and 2025 was 22 November 2023, reaching 35.1 °C.
What is the coldest day in Mahajanga?
The coldest day measured in Mahajanga between 1940 and 2025 was 26 July 1996, at 17.9 °C.
Does it snow in Mahajanga?
Almost never: Mahajanga sees virtually no snow, with about 0 frost days per year.
Has the climate of Mahajanga warmed?
Yes: Mahajanga warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mahajanga?
The wettest day measured in Mahajanga between 1940 and 2025 was 11 April 1941, with 228 mm of rain in 24 hours.
What was the windiest day in Mahajanga?
The windiest day measured in Mahajanga between 1940 and 2025 was 8 March 2004, with winds reaching 71.6 km/h.
What is the warmest month in Mahajanga?
The warmest month in Mahajanga is April (27.7 °C on average); the coldest is July (24.8 °C).
How much does it rain in Mahajanga?
Mahajanga receives on average 1,277 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Mahajanga?
Mahajanga gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
Are there tropical nights in Mahajanga?
Yes: Mahajanga has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mahajanga?
In Mahajanga, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 9 January 1998, and the lowest was 15.6 °C on 3 September 1993.
Compare Mahajanga with another city
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Nearby cities
The climate around Mahajanga