Name day: Róża, Apolinary
Sunrise 5:48 am; sunset 8:01 pm; average air temperature: 19°C
Cloudy in the morning; sunny spells in the afternoon; Vistula river level: 93 cm



          Following heavy fights, a group of 250 insurgents under the command of Major "Wola" ("Will") captures the Church of the Holy Cross (3 Krakowskie Przedmieście), liberating several dozen people, including 8 priests.
          The insurgents also capture the neighboring building of the Police Station (KP 1).
          30 enemy soldiers die, 80 are taken captive. The insurgents set 20 Polish policemen free.
          The situation of the defenders of New World Street improves significantly.

          After two days of fights, in the morning of August 23 the insurgents capture the building of the telephone operator on Piusa XI Street (nowadays Piękna Street), the so-called small PAST-a.
          21 Germans die in the attack, 76 are taken captive. Moreover, three cars and a good deal of weaponry fall into the Polish hands.
          After a few hours, some German parlimentaires report to the Polish command to negotiate the liberation of the captives. Lieutenant Colonel Jan Szczurek-Cergowski "Sławbor" bids them goodbye with the following words: the Polish side will not bargain with the representatives of an army that murders prisoners, wounded soldiers and civilians.

          At the corner of Hipoteczna and Daniłowiczowska Streets the insurgents shoot down a German plane bombing the Old Town, using for that purpose a machine gun.

          An unsuccessful attack of the "Krybar" combat group on the University. The insurgents storm the gate, attack the bunkers and burst into the courtyard, but are welcomed by the German barrage fire that forces them to retreat.
          Two insurgent armored cars take part in the action: "Jaś" (later renamed "Grey Wolf"), a German trophy, and home-made "Kubuś".

          The Subdistrict of South Śródmieście is further divided into the West, North and East sections.

          Brigadier General Ludomir Rayski, the pre-war air commander and Deputy to the 2nd Vice-Minister for Military Affairs, takes part in an airdrop operation over Warsaw as a volunteer.