surface temperatures of the countries in the northern latitudes compare to those of northern Africa

How do the surface temperatures of the countries in the northern latitudes (for example, Canada, Iceland, Norway, and Russia) compare to those of northern Africa (for example, Algeria, Egypt, Libya, Morocco, and Sudan)? options:

1) The temperatures are higher in the northern latitudes during summer months when net radiation is higher.

2) The temperatures are lower in north Africa during the summer months when net radiation is higher in northern latitudes.

3) Temperatures are lower in northern latitudes year-round.

4) Temperatures are only lower in the northern latitudes during winter months.