2027 Week Numbers
ISO 8601 standard: Weeks start on Monday, and the first week of the year contains the first Thursday.
December 2026
Week 1
28 Dec - 4 Jan
January 2027
Week 2
4 Jan - 11 Jan
Week 3
11 Jan - 18 Jan
Week 4
18 Jan - 25 Jan
Week 5
25 Jan - 1 Feb
February 2027
Week 6
1 Feb - 8 Feb
Week 7
8 Feb - 15 Feb
Week 8
15 Feb - 22 Feb
Week 9
22 Feb - 1 Mar
March 2027
Week 10
1 Mar - 8 Mar
Week 11
8 Mar - 15 Mar
Week 12
15 Mar - 22 Mar
Week 13
22 Mar - 29 Mar
Week 14
29 Mar - 5 Apr
April 2027
Week 15
5 Apr - 12 Apr
Week 16
12 Apr - 19 Apr
Week 17
19 Apr - 26 Apr
Week 18
26 Apr - 3 May
May 2027
Week 19
3 May - 10 May
Week 20
10 May - 17 May
Week 21
17 May - 24 May
Week 22
24 May - 31 May
Week 23
31 May - 7 June
June 2027
Week 24
7 June - 14 June
Week 25
14 June - 21 June
Week 26
21 June - 28 June
Week 27
28 June - 5 July
July 2027
Week 28
5 July - 12 July
Week 29
12 July - 19 July
Week 30
19 July - 26 July
Week 31
26 July - 2 Aug
August 2027
Week 32
2 Aug - 9 Aug
Week 33
9 Aug - 16 Aug
Week 34
16 Aug - 23 Aug
Week 35
23 Aug - 30 Aug
Week 36
30 Aug - 6 Sept
September 2027
Week 37
6 Sept - 13 Sept
Week 38
13 Sept - 20 Sept
Week 39
20 Sept - 27 Sept
Week 40
27 Sept - 4 Oct
October 2027
Week 41
4 Oct - 11 Oct
Week 42
11 Oct - 18 Oct
Week 43
18 Oct - 25 Oct
Week 44
25 Oct - 1 Nov
November 2027
Week 45
1 Nov - 8 Nov
Week 46
8 Nov - 15 Nov
Week 47
15 Nov - 22 Nov
Week 48
22 Nov - 29 Nov
Week 49
29 Nov - 6 Dec
December 2027
Week 50
6 Dec - 13 Dec
Week 51
13 Dec - 20 Dec
Week 52
20 Dec - 27 Dec