The mercury climbed to 22.1 degrees Celsius in the southern town of Maków Podhalański, the highest reading ever seen in the country in the second month of the year.
Thursday also saw a local record for February set in Warsaw, where thermometers showed 18.1 degrees C.
The warm weather comes hot on the heels of an unusually cold spell that saw double-digit sub-zero temperatures earlier this month.
Some experts have said that the drastic change in temperatures over such a short period of time is a result of climate change.
(pk)
Source: PAP