Generally, you can anticipate the weather in Chamonix all through the month of April is -9 with a general average high of 12 degrees and a low of -12. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | -9 |
| High Temperature | 12 |
| Low Temperature | -12 |
Useful Links: Chamonix Weather: Average Weather & Yearly Climate