Moroni climate — normals and trends
Moroni (Comoros) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 1,356 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 (25.6 °C on average) and the coldest is July (22.5 °C). Rainfall peaks in January.
Moroni averages 0 frost days, 0 hot days (≥ 30 °C) and 224 rainy days per year.
Moroni has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 29.6 °C (on 11 March 2016) and the coldest 17.8 °C (on 20 August 1974).
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
MoroniGrande Comore
- coords
- -11.70°, 43.26°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.4°C
Average daily high
25.8°C
Average daily low
23.3°C
Annual rainfall
1,356mm
Sunshine / day
11.2h
Mean relative humidity
83%
Average peak wind
12.7km/h
Seasonal range
3.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
224 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.4 °C
Average feels-like low
26.2 °C
Average peak gust
34.3 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.62 · 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
29.6 °C
11 March 2016
Coldest day
17.8 °C
20 August 1974
Wettest day
175 mm
29 November 2006
Windiest day
43.6 km/h
10 April 1941
Strongest gust
129.6 km/h
10 April 1941
Hottest feels-like
38.4 °C
2 March 1952
Coldest feels-like
17.1 °C
25 July 1975
Sunniest day
12.6 h
13 January 1940
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 | 27.8 °C | +0.9 °C | 159 mm | -104 mm |
| Feb | 27.8 °C | +0.8 °C | 108 mm | -102 mm |
| Mar | 27.9 °C | +0.8 °C | 175 mm | -43 mm |
| Apr | 27.9 °C | +1.1 °C | 68 mm | -94 mm |
| May | 26.8 °C | +1.0 °C | 115 mm | +39 mm |
| Jun | 25.4 °C | +1.0 °C | 47 mm | -5 mm |
| Jul | 24.2 °C | +0.5 °C | 44 mm | -1 mm |
| Aug | 24.2 °C | +0.4 °C | 32 mm | -1 mm |
| Sep | 25.2 °C | +0.6 °C | 27 mm | +4 mm |
| Oct | 25.8 °C | +0.2 °C | 40 mm | +5 mm |
| Nov | 27.4 °C | +0.8 °C | 66 mm | +2 mm |
| Dec | 28.0 °C | +1.0 °C | 83 mm | -94 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 Moroni?
Moroni has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 1,356 mm of precipitation per year.
What is the hottest day ever recorded in Moroni?
The hottest day measured in Moroni between 1940 and 2025 was 11 March 2016, reaching 29.6 °C.
What is the coldest day in Moroni?
The coldest day measured in Moroni between 1940 and 2025 was 20 August 1974, at 17.8 °C.
Does it snow in Moroni?
Almost never: Moroni sees virtually no snow, with about 0 frost days per year.
Has the climate of Moroni warmed?
Yes: Moroni warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Moroni?
The wettest day measured in Moroni between 1940 and 2025 was 29 November 2006, with 175 mm of rain in 24 hours.
What was the windiest day in Moroni?
The windiest day measured in Moroni between 1940 and 2025 was 10 April 1941, with winds reaching 43.6 km/h.
What is the warmest month in Moroni?
The warmest month in Moroni is February (25.6 °C on average); the coldest is July (22.5 °C).
How much does it rain in Moroni?
Moroni receives on average 1,356 mm of precipitation per year, spread over about 224 rainy days.
Is it sunny in Moroni?
Moroni gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Moroni?
Yes: Moroni has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Moroni?
In Moroni, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 2 March 1952, and the lowest was 17.1 °C on 25 July 1975.
Compare Moroni with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Moroni