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Fomboni, Comoros climate
Am Tropical monsoon
Fomboni has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is December with an average daily high near 32°C, while the coldest is August averaging around 20°C at night. Precipitation totals about 2315 mm a year and is strongly seasonal — January alone averages 460 mm while August barely receives 31 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Fomboni climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 32 | 32 | 31 | 30 | 29 | 29 | 30 | 31 | 32 | 32 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 25 | 27 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 22 | 21 | 20 | 21 | 23 | 24 | 24 |
| Precipitation (mm) | 460 | 315 | 387 | 282 | 92 | 42 | 49 | 31 | 94 | 88 | 132 | 343 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 32 | 32 | 31 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 27 | 26 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 23 | 22 |
| Precipitation (mm) | 460 | 315 | 387 | 282 | 92 | 42 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 30 | 31 | 32 | 32 |
| Avg temp (°C) | 25 | 25 | 25 | 27 | 28 | 28 |
| Avg low (°C) | 21 | 20 | 21 | 23 | 24 | 24 |
| Precipitation (mm) | 49 | 31 | 94 | 88 | 132 | 343 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 59 | 48 | 39 | 37 | 39 | 35 | 34 | 33 | 34 | 48 |
| Relative humidity (%) | 80 | 81 | 79 | 77 | 76 | 74 | 74 | 74 | 74 | 76 | 77 | 78 |
| Wind speed (m/s) | 4.3 | 3.9 | 3.3 | 3.8 | 4.7 | 5.0 | 5.0 | 4.0 | 3.5 | 3.8 | 3.8 | 3.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 67 | 59 | 48 | 39 | 37 |
| Relative humidity (%) | 80 | 81 | 79 | 77 | 76 | 74 |
| Wind speed (m/s) | 4.3 | 3.9 | 3.3 | 3.8 | 4.7 | 5.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 35 | 34 | 33 | 34 | 48 |
| Relative humidity (%) | 74 | 74 | 74 | 76 | 77 | 78 |
| Wind speed (m/s) | 5.0 | 4.0 | 3.5 | 3.8 | 3.8 | 3.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Prince Said Ibrahim, a weather station, about 98 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.