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Viedma, Argentina climate
BSk Cold semi-arid
Viedma has a seasonal mild-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is January with an average daily high near 30°C, while the coldest is July averaging around 1°C at night. Around 383 mm of precipitation falls each year, peaking in March (53 mm) and easing off in December (23 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)Viedma climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 29 | 26 | 21 | 17 | 14 | 13 | 15 | 18 | 21 | 25 | 28 |
| Avg temp (°C) | 22 | 21 | 19 | 14 | 10 | 8 | 7 | 8 | 11 | 14 | 18 | 21 |
| Avg low (°C) | 15 | 14 | 12 | 8 | 5 | 2 | 1 | 3 | 4 | 7 | 10 | 13 |
| Precipitation (mm) | 31 | 40 | 53 | 38 | 32 | 27 | 30 | 25 | 24 | 32 | 28 | 23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 29 | 26 | 21 | 17 | 14 |
| Avg temp (°C) | 22 | 21 | 19 | 14 | 10 | 8 |
| Avg low (°C) | 15 | 14 | 12 | 8 | 5 | 2 |
| Precipitation (mm) | 31 | 40 | 53 | 38 | 32 | 27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 15 | 18 | 21 | 25 | 28 |
| Avg temp (°C) | 7 | 8 | 11 | 14 | 18 | 21 |
| Avg low (°C) | 1 | 3 | 4 | 7 | 10 | 13 |
| Precipitation (mm) | 30 | 25 | 24 | 32 | 28 | 23 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 41 | 43 | 45 | 50 | 57 | 58 | 55 | 58 | 55 | 54 | 52 | 47 |
| Relative humidity (%) | 49 | 54 | 59 | 64 | 72 | 76 | 76 | 71 | 66 | 60 | 54 | 49 |
| Wind speed (m/s) | 4.5 | 4.4 | 4.1 | 3.9 | 3.8 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 4.1 | 4.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 41 | 43 | 45 | 50 | 57 | 58 |
| Relative humidity (%) | 49 | 54 | 59 | 64 | 72 | 76 |
| Wind speed (m/s) | 4.5 | 4.4 | 4.1 | 3.9 | 3.8 | 4.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 58 | 55 | 54 | 52 | 47 |
| Relative humidity (%) | 76 | 71 | 66 | 60 | 54 | 49 |
| Wind speed (m/s) | 4.0 | 3.9 | 3.9 | 3.9 | 4.1 | 4.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the WMO's CLINO 1991–2020 collection, measured at Viedma_aero, about 5 km from the city centre.
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.