The bar chart below shows the average monthly peak daytime temperatures at Zwoleń
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | -2.4 | -0.5 | 6 | 13.6 | 18.7 | 21.7 | 23.3 | 22.7 | 18.4 | 12.8 | 5.5 | -0.1 | 
| °F | 27.6 | 31.1 | 42.8 | 56.4 | 65.7 | 71.1 | 73.9 | 72.9 | 65.1 | 55 | 41.8 | 31.8 | 
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 27 | 26 | 27 | 36 | 58 | 76 | 78 | 65 | 45 | 36 | 37 | 35 | 
| inches | 1.1 | 1 | 1.1 | 1.4 | 2.3 | 3 | 3.1 | 2.6 | 1.8 | 1.4 | 1.5 | 1.4 | 
| Rainy days | 16 | 13 | 13 | 13 | 13 | 14 | 14 | 12 | 12 | 13 | 15 | 17 | 
Average annual rainfall in Zwoleń: 618.4mm (243.5 inches)
The bar chart below shows the average daily sunshine hours in Zwoleń
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 1.8 | 2.8 | 4.1 | 5.7 | 7.6 | 8 | 8.1 | 7.7 | 5.6 | 4.2 | 2 | 1.4 | 
The graph below shows the daily range of temperatures for each month.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | -7.9 | -6.5 | -1.4 | 4 | 8.4 | 11.5 | 13.1 | 12.4 | 9 | 4.8 | 0.2 | -4.8 | 
| Max °C | -2.3 | -0.4 | 6.2 | 13.8 | 19 | 22 | 23.6 | 23 | 18.6 | 13 | 5.6 | 0 | 
| Min °F | 17.8 | 20.4 | 29.5 | 39.2 | 47.1 | 52.6 | 55.5 | 54.3 | 48.2 | 40.6 | 32.4 | 23.4 | 
| Max °F | 22.8 | 25.9 | 36.3 | 48 | 56.7 | 62.1 | 64.9 | 63.9 | 56.8 | 48 | 37.2 | 27.7 | 
The graph below shows the average sea temperature.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 6.3 | 5.3 | 5.3 | 7 | 11 | 15.9 | 19.5 | 20.7 | 18.3 | 14.6 | 11.1 | 8.2 | 
| °F | 43.4 | 41.5 | 41.6 | 44.5 | 51.7 | 60.6 | 67.2 | 69.3 | 64.9 | 58.3 | 51.9 | 46.7 | 
The graph below shows the average wind speed.
		
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 16 | 15 | 16 | 14 | 12 | 12 | 12 | 11 | 12 | 13 | 15 | 16 | 
| mph | 10 | 9 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 8 | 9 | 10 | 
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
		| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 90% | 87% | 79% | 73% | 72% | 74% | 75% | 75% | 80% | 83% | 88% | 91% | 
| Hottest month: | July | 23.3°C 73.9°F | 
|---|---|---|
| Driest month: | February | 26mm 1ins | 
| Sunniest month: | August | 7.7hrs | 
| Coldest month: | January | -2.4°C 27.7°F | 
| Wettest month: | July | 78mm 3.1ins | 
| Warmest sea: | August | 20.7°C 69.3°F |