Insolation, air humidity at 1 pm, precipitation, the number of days with rain, 10-day air temperature and wind speed in Wielkopolska were studied based on the records from the meteorological stations of Piła, Poznań, Koło, Leszno and Kalisz for the years 1980–1998. Analysis included also the bioclimatic conditions of the region, such as the grade of thermal ardourness, wind power and the cooling potential of the air (H). It was found that the weather conditions of Wielkopolska are comfortable, particularly during the period of increased tourist activity, that is from the end of June to the end of August. The increased insolation in May and the high (as compared to other regions of Poland) air temperature are expected to extend the holiday period in the countryside.

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