Date	Action	Weather	RAF Losses			Luftwaffe Losses
1 September	Fighter Command regroups Biggin Hill, Eastchurch and Detling bombed London Docks attacked Destroyers HMS Esk and HMS Ivanhoe mined. HM Trawler Royalo sunk		20	19	17	13
2 September	Night bombing from Exeter to Glasgow. Beaufighter enters service Biggin Hill, Eastchurch, Rochford, North Weald, Gravesend, Kenley, Hornchurch, Brooklands, Lympne and Detling bombed Rochester bombed.		29	27	48	42
3 September	Birmingham, Castle Bromwich, Liverpool, Cardiff and Manchester bombed at night North Weald bombed Sealion postponed to 21 September.		24	19	31	18
4 September	Liverpool bombed overnight. Eastchurch, Redhill, Brooklands and Lympne bombed. Daylight attacks on Rochester, Canterbury, Faversham and Reigate. CHL at Poling attacked		23	18	35	28
5 September	Widespread bombing raids. Thameshaven bombed.		26	25	45	33
6 September	A,B and C squadrons categorised. Liverpool and Thameshaven bombed. Attack on Brooklands		26	25	53	44
7 September	Göring visits Pas de Calais. Biggest ever raid mounted 348 bombers, 617 fighters. Target is East London. Second wave attacks in the evening, the first of 57 consecutive days bombing Codeword Cromwell sent "invasion believed imminent".		42	39	63	54
8 September	43 and 111 squadron withdrawn Airfields and suburbs of south London attacked Six more Beaufighters enter service Evening raids on London and the docks. All rail lines cut.		5	4	24	17
9 September	Daylight raids on S. London, Southampton and Surrey. London bombed at night HM Trawler Dervish mined HM SSV Minnie de Larinaga salvaged		25	24	44	37
10 September	Daylight raids on Norwich, Portsmouth, Southampton, Littlehampton,Bognor, Farnborough and Great Yarmouth Bombers attack Berlin. London attacked at night	Dull and Overcast	4	0	11	6
11 September	Daylight fighter attacks on London. Portsmouth and Southampton bombed Invasion barges bombed		43	43	47	40
12 September	Bomber command attacks railyards Daylight attacks in Kent, Sussex and Hampshire London attacked at night	Rain	2	2	13	7
13 September	Greater co-ordination of Bomber Command attacks. German anti-aircraft defences revised. Six Staffeln withdrawn. London bombed		3	2	10	7
14 September	Daylight attacks on London, Brighton and Eastbourne. Coastal radar stations attacked CH jamming reported London bombed at night	Weather worsens	19	18	20	17
15 September	Issue of Fighter Command instruction No18. Spitfires take top cover, Hurricanes to remain at medium altitude. Attacks on invasion barges continue		35	34	80	79
16 September	Fighter vs fighter clashes London, Bristol,Liverpool, Southampton bombed at night	.	4	2	18	13
17 September	Luftwaffe freijagd at high altitude. Bomber Command attacks barges	.Poor weather	13	9	17	12
18 September	Night attacks on London, Bristol. Liverpool and Southampton Bomber Command attacks invasion barges. Daylight attacks on Rochester, Chatham and Gravesend		20	15	27	24
19 September	Sea Lion postponed indefinitely London bombed	.Heavy rain	1	0	20	18
20 September	Medway towns bombed. London bombed at night		10	9	13	13
21 September	Freijagd 11 Group's airfields attacked. Brooklands bombed		2	1	14	10
22 September	Night bombing on London and Liverpool Airfields attacked at Waddington, Digby and Scampton		2	0	12	7
23 September	Night bombing on London, Liverpool and Merseyside. Daylight raid on Eastbourne. Freijagd		13	10	22	18
24 September	Woolston Factory (Southampton) and London bombed MTB No15 and HM Trawler Loch Inver mined		15	9	23	21
25 September	RAF reconnaissance indicates 40% of barges gone Daylight raids on Portland, Plymouth, Falmouth, Southampton and Swannage. Filton attacked		6	3	22	19
26 September	Woolston and Filton factories bombed		9	9	17	12
27 September	Raids on 10 and 11 Group airfields. Bombing of London, Bristol, Sherbourne, the Filton factory, and Yate		41	41	67	63
28 September	Fighter vs fighter battles. Use of Bf110s as bombers with heavy escorts. HM Trawler Recoil mined		22	20	13	11
29 September	Little activity. Merseyside bombed		8	5	18	15
30 September	London and Sherbourne bombed HM Trawler Comet mined Dowding knighted		36	32	59	57
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