On Sunday 13th May 2018 all stations of the red metro line will be closed. Between the Rondo Daszyńskiego and the Dworzec Wileński there will be buses in place
The M2 closing is related to the yearly inspection to ensure the safety of the line. Checking the technical condition and conducting tests require closing the entire section to be closed to the public. A standard inspection is normally completed in the night time, however as this is a major inspection it can take up to 24 hours. The City Transport Authority explains that they chose Sunday because at the time the least passengers use the subway and no mass events are planned.
Between the Rondem Daszyńskiego and the Dworcem Wileńskim the ZM2 bus will run every 8-10 minutes. In addition, bus 105 will increase its route time to include more stations that might be impacted by the closure.
If you only need to travel a short distance why not consider using of one the many city bikes? You can learn how to create an account and start using a bike today here: Warsaw City Bikes