You should expect the average temperature in London during the time of July is 17 with a high of 22 and low average expected to be 14 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 17 |
| High Temperature | 22 |
| Low Temperature | 14 |
| Sunshine Per Day | 7 |
Useful Links: London Weather: Average Weather & Yearly Climate