Frequently the average temperatures in Topsham during the time of December is 5. Average high is typically 9 and low of 4. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 5 |
| High Temperature | 9 |
| Low Temperature | 4 |
| Sunshine Per Day | 3 |
Useful Links: Topsham Weather: Average Weather & Yearly Climate