Daily Data Tables - Day Maximum (09-21) / °C
Weather Variable:
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1 | 5.9 | 10.0 | 12.8 | 14.1 | 25.6 | 23.7 | 27.0 | - | - | - | - | - |
| 2 | 2.7 | 8.3 | 15.9 | 12.2 | 23.6 | 20.4 | 26.4 | - | - | - | - | - |
| 3 | 2.2 | 4.6 | 14.0 | 15.7 | 19.6 | 18.9 | 27.6 | - | - | - | - | - |
| 4 | 2.3 | 10.4 | 10.9 | 14.4 | 15.8 | 18.8 | - | - | - | - | - | |
| 5 | 1.6 | 8.2 | 17.9 | 13.8 | 17.3 | 19.1 | - | - | - | - | - | - |
| 6 | 3.9 | 10.8 | 9.9 | 16.7 | 14.3 | 17.2 | - | - | - | - | - | - |
| 7 | 5.8 | 10.6 | 8.9 | 19.0 | 16.0 | 18.9 | - | - | - | - | - | - |
| 8 | 5.4 | 11.2 | 9.3 | 26.1 | 18.3 | 16.5 | - | - | - | - | - | - |
| 9 | 4.4 | 9.9 | 13.6 | 22.1 | 21.2 | 19.6 | - | - | - | - | - | - |
| 10 | 2.7 | 11.1 | 13.3 | 14.2 | 13.1 | 17.7 | - | - | - | - | - | - |
| 11 | 7.8 | 11.6 | 13.1 | 13.9 | 12.4 | 16.2 | - | - | - | - | - | - |
| 12 | 11.1 | 10.4 | 11.6 | 15.4 | 16.4 | 22.4 | - | - | - | - | - | - |
| 13 | 10.6 | 7.9 | 9.4 | 14.7 | 13.2 | 22.4 | - | - | - | - | - | - |
| 14 | 8.8 | 5.8 | 11.1 | 17.1 | 12.3 | 22.1 | - | - | - | - | - | - |
| 15 | 9.3 | 8.6 | 12.6 | 17.0 | 15.0 | 22.3 | - | - | - | - | - | - |
| 16 | 9.8 | 9.1 | 12.1 | 18.3 | 14.7 | 27.3 | - | - | - | - | - | - |
| 17 | 10.6 | 6.1 | 15.2 | 18.1 | 17.7 | 26.3 | - | - | - | - | - | - |
| 18 | 11.2 | 5.6 | 18.5 | 17.4 | 14.7 | 24.4 | - | - | - | - | - | - |
| 19 | 10.6 | 6.1 | 16.9 | 15.9 | 18.3 | 31.1 | - | - | - | - | - | - |
| 20 | 10.2 | 11.2 | 13.9 | 13.0 | 20.2 | 26.5 | - | - | - | - | - | - |
| 21 | 9.5 | 13.6 | 13.1 | 14.1 | 24.6 | 29.8 | - | - | - | - | - | - |
| 22 | 9.3 | 13.8 | 12.8 | 16.0 | 28.6 | 28.1 | - | - | - | - | - | - |
| 23 | 9.1 | 12.9 | 15.3 | 18.3 | 30.2 | 33.9 | - | - | - | - | - | - |
| 24 | 9.3 | 15.5 | 12.9 | 19.1 | 31.9 | 35.7 | - | - | - | - | - | - |
| 25 | 7.4 | 17.3 | 9.8 | 21.9 | 33.2 | 31.9 | - | - | - | - | - | - |
| 26 | 5.8 | 12.9 | 10.1 | 19.4 | 35.2 | 35.8 | - | - | - | - | - | - |
| 27 | 9.6 | 13.4 | 12.5 | 21.5 | 26.4 | 31.1 | - | - | - | - | - | - |
| 28 | 8.6 | 10.6 | 11.2 | 16.3 | 31.7 | 26.5 | - | - | - | - | - | - |
| 29 | 7.0 | 10.5 | 17.2 | 26.1 | 24.6 | - | - | - | - | - | - | |
| 30 | 10.6 | 12.3 | 19.4 | 30.1 | 25.4 | - | - | - | - | - | - | |
| 31 | 10.3 | 16.7 | 23.6 | - | - | - | - | |||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Lowest | 1.6 | 4.6 | 8.9 | 12.2 | 12.3 | 16.2 | 26.4 | --- | --- | --- | --- | --- |
| Highest | 11.2 | 17.3 | 18.5 | 26.1 | 35.2 | 35.8 | 27.6 | --- | --- | --- | --- | --- |
| Mean | 7.5 | 10.3 | 12.8 | 17.1 | 21.3 | 24.5 | 27.0 | --- | --- | --- | --- | --- |
| Cumul | 7.5 | 8.8 | 10.2 | 11.9 | 13.9 | 15.6 | 15.8 | 15.8 | 15.8 | 15.8 | 15.8 | 15.8 |
Day Maximum (09-21) in London, NW3, for every available day of 2026 along with monthly summary: lowest, highest, mean, and the cumulative value for the year to the month's end.
Values for recent days are subject to quality control and may be adjusted at any time.