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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 75°F, while the coldest is February averaging around 17°F at night. Around 29 inches of precipitation falls each year, peaking in November (4.8 inches) and easing off in July (1.4 inches). 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 (°F) | 29 | 29 | 38 | 53 | 64 | 70 | 75 | 72 | 63 | 50 | 39 | 33 |
| Avg temp (°F) | 24 | 23 | 30 | 42 | 52 | 59 | 64 | 62 | 54 | 43 | 34 | 29 |
| Avg low (°F) | 18 | 17 | 22 | 32 | 40 | 48 | 54 | 51 | 44 | 36 | 29 | 24 |
| Precipitation (in) | 2.3 | 2.3 | 1.8 | 1.5 | 1.9 | 3.3 | 1.4 | 1.9 | 3.2 | 2.3 | 4.8 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 29 | 29 | 38 | 53 | 64 | 70 |
| Avg temp (°F) | 24 | 23 | 30 | 42 | 52 | 59 |
| Avg low (°F) | 18 | 17 | 22 | 32 | 40 | 48 |
| Precipitation (in) | 2.3 | 2.3 | 1.8 | 1.5 | 1.9 | 3.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 75 | 72 | 63 | 50 | 39 | 33 |
| Avg temp (°F) | 64 | 62 | 54 | 43 | 34 | 29 |
| Avg low (°F) | 54 | 51 | 44 | 36 | 29 | 24 |
| Precipitation (in) | 1.4 | 1.9 | 3.2 | 2.3 | 4.8 | 2.0 |
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 ≥ 90°F (days) | — | — | — | — | — | — | 0.4 | 0.1 | — | — | — | — |
| Days with low ≤ 32°F (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 ≥ 90°F (days) | — | — | — | — | — | — |
| Days with low ≤ 32°F (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 ≥ 90°F (days) | 0.4 | 0.1 | — | — | — | — |
| Days with low ≤ 32°F (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 (mph) | 9.1 | 8.8 | 8.3 | 7.7 | 7.2 | 7.3 | 6.8 | 6.7 | 7.4 | 7.9 | 8.4 | 9.1 |
| 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 (mph) | 9.1 | 8.8 | 8.3 | 7.7 | 7.2 | 7.3 |
| 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 (mph) | 6.8 | 6.7 | 7.4 | 7.9 | 8.4 | 9.1 |
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.