Average temperature in Brighton during December is 7. Throughout the month you should see a high of 8 and low around 3 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 7 |
| High Temperature | 8 |
| Low Temperature | 3 |
| Sunshine Per Day | 3 |
Useful Links: Brighton Weather: Average Weather & Yearly Climate