Average daily temperature in Calais right through the month of July is 15, with highs being around 20 with lows of 14. We have provided a clearer breakdown here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 15 |
| High Temperature | 20 |
| Low Temperature | 14 |
| Sunshine Per Day | 9 |
Useful Links: Calais Weather: Average Weather & Yearly Climate