Siirt's climate reflects a mix of continental and Mediterranean climate characteristics, resulting in both hot summers and cold winters in the region. Summers are usually hot and dry, while winters can be cold and at times quite rainy. The spring and fall seasons are generally mild, and these are the times of maximum rainfall.
Temperature values vary greatly according to the seasons. In summer, temperatures usually range between 30°C and 40°C, while in winter these values can drop below zero. Snowfall and frost can occur especially in the winter months. Spring is a period when nature comes to life and flowers bloom, with temperatures generally ranging between 15°C and 25°C. Autumn is cooler and rainfall starts to increase gradually.
Winds in Siirt generally blow from the north and northwest directions. Winds blowing from the north bring cold waves, especially in winter, which can cause temperatures to drop even further. In summer, winds blowing from the south can trigger heat waves. This variable nature of the winds is an important factor in Siirt's climate.
Humidity is usually low throughout the year, but increases in the winter months with precipitation. This makes cold weather conditions more noticeable and increases the need for heating, especially in winter. High humidity levels can make temperatures feel more oppressive in summer, while low humidity levels generally offer more comfortable weather conditions.
Precipitation is more intense especially in spring and fall. Siirt receives 500-600 mm of precipitation on average annually. This rainfall is vital for agricultural activities because the region's water resources are heavily dependent on rainfall. In winter, precipitation is usually in the form of snow, while in spring and fall it is in the form of rain.
Siirt's climate has a direct impact on the city's living conditions. There is an intense need for heating in the winter months and the need to resort to various methods to cool off in the summer months. In addition, seasonal precipitation and temperature changes are among the determining factors in terms of crop productivity for the population engaged in agriculture and animal husbandry. For this reason, the people of Siirt have developed various methods to adapt to climatic conditions and cope with the challenges of seasonal changes.