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Ihosy, Madagascar climate
Cwa Monsoon-influenced humid subtropical
Ihosy has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is December with an average daily high near 28°C, while the coldest is July averaging around 11°C at night. Precipitation totals about 1255 mm a year and is strongly seasonal — January alone averages 288 mm while September barely receives 3 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)Ihosy climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 27 | 26 | 25 | 22 | 21 | 23 | 25 | 27 | 29 | 28 |
| Avg temp (°C) | 23 | 23 | 22 | 21 | 19 | 17 | 16 | 17 | 19 | 21 | 22 | 23 |
| Avg low (°C) | 18 | 18 | 18 | 16 | 14 | 11 | 11 | 11 | 12 | 15 | 16 | 18 |
| Precipitation (mm) | 288 | 219 | 178 | 49 | 9 | 60 | 22 | 18 | 3 | 62 | 77 | 269 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 27 | 26 | 25 | 22 |
| Avg temp (°C) | 23 | 23 | 22 | 21 | 19 | 17 |
| Avg low (°C) | 18 | 18 | 18 | 16 | 14 | 11 |
| Precipitation (mm) | 288 | 219 | 178 | 49 | 9 | 60 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 23 | 25 | 27 | 29 | 28 |
| Avg temp (°C) | 16 | 17 | 19 | 21 | 22 | 23 |
| Avg low (°C) | 11 | 11 | 12 | 15 | 16 | 18 |
| Precipitation (mm) | 22 | 18 | 3 | 62 | 77 | 269 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 14 | 12 | 8 | 6 | 6 | 7 | 5 | 3 | 4 | 7 | 12 |
| Days with high ≥ 32°C (days) | 0.3 | — | 0.1 | 0.0 | 0.1 | — | — | 0.1 | 0.1 | 1 | 2 | 0.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 14 | 12 | 8 | 6 | 6 |
| Days with high ≥ 32°C (days) | 0.3 | — | 0.1 | 0.0 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 3 | 4 | 7 | 12 |
| Days with high ≥ 32°C (days) | — | 0.1 | 0.1 | 1 | 2 | 0.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 77 | 71 | 61 | 56 | 56 | 60 | 56 | 54 | 61 | 67 | 73 |
| Relative humidity (%) | 85 | 87 | 87 | 87 | 87 | 87 | 86 | 83 | 80 | 77 | 77 | 80 |
| Wind speed (km/h) | 9.2 | 9.5 | 9.0 | 8.4 | 8.1 | 9.2 | 10.6 | 10.9 | 11.4 | 10.9 | 9.6 | 8.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 77 | 71 | 61 | 56 | 56 |
| Relative humidity (%) | 85 | 87 | 87 | 87 | 87 | 87 |
| Wind speed (km/h) | 9.2 | 9.5 | 9.0 | 8.4 | 8.1 | 9.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 60 | 56 | 54 | 61 | 67 | 73 |
| Relative humidity (%) | 86 | 83 | 80 | 77 | 77 | 80 |
| Wind speed (km/h) | 10.6 | 10.9 | 11.4 | 10.9 | 9.6 | 8.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Fianarantsoa, a weather station, about 148 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.