Since Kırklareli is located in the Thrace region, it shows both continental and partly maritime climate characteristics. The climate exhibits a distinct seasonal variation with generally harsh winters and hot summers. Summers are hot and generally dry, while winters are cold and rainy. The spring and fall seasons are mild and rainfall is more frequent.
In summer, temperatures usually range between 25 degrees Celsius and 30 degrees Celsius, but during heat waves they can reach up to 35 degrees Celsius. In winter, temperatures usually hover between 0 degrees and 5 degrees Celsius, but occasionally there are very cold days when temperatures drop below zero. In the spring and fall, temperatures range between 10 degrees Celsius and 20 degrees Celsius. These seasonal transitions can trigger important ecological processes for people and wildlife living in the region.
Kırklareli's rainfall regime is generally intense in spring and fall. The average annual rainfall is around 500-600 mm. The months with the highest rainfall are usually October and November. The summer months are drier and this may put pressure on agricultural activities. In the winter months, precipitation is usually in the form of snow, which offers opportunities for winter tourism, but can cause disruptions in urban and intercity transportation.
Winds in Kırklareli generally blow from the north and northeast directions. North winds blowing especially in the winter months bring cold air waves and lower the temperature even more. North winds blowing in the summer months help to keep the humidity low, so the hot weather feels less overwhelming. This effect of the wind creates favorable conditions for spending time outdoors and agricultural activities, especially in summer.
Humidity is generally low to moderate in Kırklareli. Low humidity in the summer months allows the hot weather to feel less dominant, while low humidity in the winter months can cause the cold to feel sharper. This humidity regime has a direct impact on vegetation and agriculture in the region. It can increase the need for irrigation, especially for agricultural crops with high water demand, and put pressure on water resources in the region.