Mahanoro climate — normals and trends
Mahanoro (Madagascar) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 23.2 °C and it receives 2,099 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 (25.7 °C on average) and the coldest is July (20.1 °C). Rainfall peaks in March.
Mahanoro averages 0 frost days, 11 hot days (≥ 30 °C) and 242 rainy days per year.
Mahanoro has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.6 °C (on 4 February 2004) and the coldest 14.6 °C (on 6 July 1986).
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
MahanoroAtsinanana
- coords
- -19.90°, 48.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.2°C
Average daily high
25.7°C
Average daily low
21.4°C
Annual rainfall
2,099mm
Sunshine / day
10.4h
Mean relative humidity
84%
Average peak wind
15.1km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
242 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.2 °C
Average feels-like low
23.8 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
245 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.79 · 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
34.6 °C
4 February 2004
Coldest day
14.6 °C
6 July 1986
Wettest day
246 mm
9 May 2003
Windiest day
83.2 km/h
10 March 1941
Strongest gust
154.1 km/h
10 March 1941
Hottest feels-like
42.1 °C
23 February 2013
Coldest feels-like
12.9 °C
27 June 2006
Sunniest day
13.0 h
16 November 1940
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 | 30.5 °C | +2.2 °C | 113 mm | -171 mm |
| Feb | 29.3 °C | +1.1 °C | 471 mm | +166 mm |
| Mar | 29.2 °C | +1.6 °C | 159 mm | -162 mm |
| Apr | 28.7 °C | +2.2 °C | 151 mm | -44 mm |
| May | 25.7 °C | +0.9 °C | 211 mm | +43 mm |
| Jun | 24.4 °C | +1.2 °C | 79 mm | -48 mm |
| Jul | 22.7 °C | +0.3 °C | 172 mm | +37 mm |
| Aug | 23.2 °C | +0.5 °C | 102 mm | +1 mm |
| Sep | 25.1 °C | +1.2 °C | 42 mm | -24 mm |
| Oct | 26.0 °C | +0.5 °C | 88 mm | +8 mm |
| Nov | 28.0 °C | +1.0 °C | 117 mm | +7 mm |
| Dec | 27.9 °C | 0.0 °C | 429 mm | +222 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 Mahanoro?
Mahanoro has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.2 °C and it receives 2,099 mm of precipitation per year.
What is the hottest day ever recorded in Mahanoro?
The hottest day measured in Mahanoro between 1940 and 2025 was 4 February 2004, reaching 34.6 °C.
What is the coldest day in Mahanoro?
The coldest day measured in Mahanoro between 1940 and 2025 was 6 July 1986, at 14.6 °C.
Does it snow in Mahanoro?
Almost never: Mahanoro sees virtually no snow, with about 0 frost days per year.
Has the climate of Mahanoro warmed?
Yes: Mahanoro warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mahanoro?
The wettest day measured in Mahanoro between 1940 and 2025 was 9 May 2003, with 246 mm of rain in 24 hours.
What was the windiest day in Mahanoro?
The windiest day measured in Mahanoro between 1940 and 2025 was 10 March 1941, with winds reaching 83.2 km/h.
What is the warmest month in Mahanoro?
The warmest month in Mahanoro is January (25.7 °C on average); the coldest is July (20.1 °C).
How much does it rain in Mahanoro?
Mahanoro receives on average 2,099 mm of precipitation per year, spread over about 242 rainy days.
Is it sunny in Mahanoro?
Mahanoro gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Mahanoro?
Yes: Mahanoro has on average 245 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mahanoro?
In Mahanoro, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 23 February 2013, and the lowest was 12.9 °C on 27 June 2006.
Compare Mahanoro with another city
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Nearby cities
The climate around Mahanoro