The weather is mainly fine. During the day, Luftwaffe reconnaissances are active along the East, South and South West Coasts and attacked some isolated objectives. In the evening a strong formation, consisting mainly of fighters, made a sweep over Kent and the Estuary, some penetrating to the eastern boundary of Central London. Between 1750 and 1800 hours seven formations crossed the coast between Dungeness and North Foreland, flying North West. These are followed by others until about 200 German aircraft in all are over the country. Twenty RAF fighter squadrons are sent up, while others patrolled Hornchurch, North Weald, and Guildford. In the North and East, reconnaissance aircraft are reported off North East Scotland in the Castletown area, 20 miles (32 kilometers) South of Scapa Flow, and East of Flamborough Head. In the afternoon the Royal Air Force Station at Waltham is attacked and suffered minor damage. In the South East at 0823 hours German air  craft attacked Weybridge and one of these is believed damaged. Later targets near Ramsgate and Rye are unsuccessfully attacked. Reconnaissance aircraft flew over the Hastings, Dungeness, Redhill and Tonbridge areas during the day. Attempts to intercept did not succeed. In the South and West Luftwaffe aircraft reconnoiter Thorney Island, Tangmere, Kenley, Middle Wallop, Spithead and districts in South Wales.

     During the night of 21/22 September, London and Merseyside are attacked. London Central received a RED warning at 2009 hours. A steady stream of Luftwaffe aircraft came from Holland and Le Havre, France. Those from Holland crossed the coast between Thames Orfordness and went to London from the North; those from Le Havre crossed the coast near Shoreham and went to London and then returned to the South. Later raids continued to come from the direction of the Belgian Coast and later still from the direction of Le Havre and Dieppe, France, entering between Beachy Head and Dungeness and covering South London, Biggin Hill and Kenley districts. On the whole, it would seem that the German activity is not quite so intense as of late. Small numbers of German Ju 88s are also making nuisance raids, one of Lehrgeschwader (Insturctional Wing) 1 flying low-level to Brooklands and placing four bombs, three on the landing ground and one in the Hurricane assembly shop. The latter did not  explode though until it had been removed from the building. Night raids on London dropped an unexploded mine on Hornchurch's landing ground, seriously damaged Bethnal Green medical works and started a fire in Howard's Timber Yard, Poplar, attended by 80 pumps (Fire Trucks). Just after dust East Anglia received a good deal of attention and some of the raiders flew down to the London area. Many Luftwaffe aircraft fly over the Bristol Channel and up over Wales to Liverpool which is given more notice than for some time past. Minelaying is suspected in the Estuary also off the North-East coast of Yorkshire, in the Tyne area, possibly off the Firth of Forth and off the entrance to Stranraer. Raiders also visited the Lancashire Coast, North of the Tyne and the Midlands near Derby and Sheffield, and two raids are plotted off the Scottish Coast South of Aberdeen. Four or five raids flew over two convoys North of the Tyne and it is reported that two aerial torpedoes are dropped.

RAF Fighter Command claim 2-1-6 Luftwaffe aircraft; no RAF aircraft are lost.

Weybridge, Surrey: Lt. John MacMillan Stevenson Patton (b. 1915), Royal Canadian Engineers, towed a bomb from an aircraft factory to a bomb crater, where it went off harmlessly. (George Cross)

Dagenham, Essex: Lt-Cdr Richard John Hammersley Ryan (b. 1903) and his assistant, CPO Reginald Vincent Ellingworth (b. 1898), who had shared many dangerous assignments, were killed when a sensitive magnetic mine, which was dangling from a parachute in a warehouse, went off as they tackled it. (George Cross for both)

Ilford, Essex: Mr. Leonard John Miles (b. ?), ARP, saved several lives when he left his air-raid shelter to warn others nearby of an unexploded bomb. He was fatally wounded when it went off. (George Cross).

Corvette HMS Nigella launched.

GERMANY: U-154 laid down.
U-145 and U-146 launched.

FINLAND: The Finnish negotiatior Juho Paasikivi, accompanied by Finance Minister Väinö Tanner, return to Moscow.

AUSTRALIA: A Federal election is held today. The United Australia Party narrowly retained government with the help of the Country Party. The United Australia Party won only 23 seats (and lost one when Arthur Coles declared himself an Independent) to Labor's 32. The Country Party won 14 seats, Lang Labor 4 seats and there was 1 Independent. (Lang Labor was a breakaway group from the main ALP and was based in New South Wales - where the sacking of Jack Lang as Premier and the ALP reaction to the creation of the breakaway group. It had a love/hate relationship with the main party such that they were really torn when they had to choose between the "tories" and the ALP. They eventually amalgamated with the ALP through attrition. Arthur Coles (former UAP and founder of Coles Department stores) and Alex Wilson held the balance of power). (Daniel Ross)

CANADA: Corvette HMCS Arvida launched Quebec City, Province of Quebec.

U.S.A.: The motion picture "City for Conquest" is released. This boxing drama, based on a novel by Aben Kandel, is directed by Anatole Litvak and stars James Cagney, Ann Sheridan, Donald Crisp, Frank McHugh, Arthur Kennedy, George Tobias, Elia Kazan and Anthony Quinn. The plot has Cagney as a fighter who is blinded with acid on the gloves of his opponent in a "fixed" fight set up by Kazan, a neighbourhood pal turned gangster. The blind Cagney then runs a newsstand and pays for his younger brothers (Kennedy) music lessons.

ATLANTIC OCEAN: U-100 sank SS Canonesa, SS Dalcairn and SS Torinina in Convoy HX-72.
U-138 sank SS Empire Adventure in Convoy OB-216.
U-47 damaged SS Elmbank in Convoy HX-72.
U-48 sank SS Blairangus and damaged SS Broompark in Convoy HX-72.
U-99 sank SS Elmbank, Empire Blythswood and SS Invershannon in Convoy HX-72.