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Viljandi, Estonia climate
Dsb Mediterranean-influenced warm-summer humid continental
Viljandi has a seasonal cold-temperate climate (Mediterranean-influenced warm-summer humid continental, Köppen Dsb). The hottest month is July with an average daily high near 24°C, while the coldest is February averaging around −8°C at night. Around 725 mm of precipitation falls each year, peaking in November (122 mm) and easing off in July (34 mm). At latitude 59°N, day length swings from 5.9 hours in midwinter to 18.1 hours at midsummer.
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)Viljandi climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −1 | 3 | 11 | 18 | 21 | 24 | 22 | 17 | 10 | 4 | 1 |
| Avg temp (°C) | −5 | −5 | −1 | 6 | 11 | 15 | 18 | 17 | 12 | 6 | 1 | −2 |
| Avg low (°C) | −8 | −8 | −5 | 0 | 4 | 9 | 12 | 11 | 7 | 2 | −1 | −4 |
| Precipitation (mm) | 58 | 58 | 46 | 38 | 47 | 83 | 34 | 49 | 82 | 59 | 122 | 50 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −1 | 3 | 11 | 18 | 21 |
| Avg temp (°C) | −5 | −5 | −1 | 6 | 11 | 15 |
| Avg low (°C) | −8 | −8 | −5 | 0 | 4 | 9 |
| Precipitation (mm) | 58 | 58 | 46 | 38 | 47 | 83 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 22 | 17 | 10 | 4 | 1 |
| Avg temp (°C) | 18 | 17 | 12 | 6 | 1 | −2 |
| Avg low (°C) | 12 | 11 | 7 | 2 | −1 | −4 |
| Precipitation (mm) | 34 | 49 | 82 | 59 | 122 | 50 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 5 | 4 | 4 | 3 | 4 | 3 | 4 | 4 | 5 | 5 | 7 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — | 0.4 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | 19 | 20 | 22 | 13 | 4 | 0.1 | — | — | 2 | 9 | 13 | 18 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 5 | 4 | 4 | 3 | 4 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 19 | 20 | 22 | 13 | 4 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 4 | 4 | 5 | 5 | 7 |
| Days with high ≥ 32°C (days) | 0.4 | 0.1 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 2 | 9 | 13 | 18 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 70 | 64 | 63 | 58 | 63 | 61 | 62 | 67 | 72 | 76 | 77 |
| Relative humidity (%) | 97 | 96 | 93 | 85 | 78 | 76 | 75 | 76 | 82 | 90 | 95 | 97 |
| Wind speed (km/h) | 14.6 | 14.2 | 13.4 | 12.3 | 11.6 | 11.7 | 10.9 | 10.8 | 11.9 | 12.8 | 13.5 | 14.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 70 | 64 | 63 | 58 | 63 |
| Relative humidity (%) | 97 | 96 | 93 | 85 | 78 | 76 |
| Wind speed (km/h) | 14.6 | 14.2 | 13.4 | 12.3 | 11.6 | 11.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 62 | 67 | 72 | 76 | 77 |
| Relative humidity (%) | 75 | 76 | 82 | 90 | 95 | 97 |
| Wind speed (km/h) | 10.9 | 10.8 | 11.9 | 12.8 | 13.5 | 14.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Turi, a weather station, about 51 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.