Usually the average weather in Heathrow throughout October is 10. With the average high being 15 and average daily low being 9 celsius.
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 15 |
| Low Temperature | 9 |
| Sunshine Per Day | 4 |
Useful Links: Heathrow Weather: Average Weather & Yearly Climate