Maximum temperatures maps for Spain and Portugal show some areas will reach a staggering 39.3C on Monday (102F) before settling at about 35C into the rest of the week.
In fact, Monday through to Friday will see the south western areas of Spain and almost the entire south coast of Portugal enjoying wall-to-wall sunshine,
Then from Saturday, temperatures take a small dip to about 28C before ratcheting up to 33C on Sunday afternoon.
A further dip is then expected from Tuesday, September 15 where temperatures drop below 30C.
Elsewhere in Europe, France will also see some warmer weather – with 25C along the southern coast expected on Monday, moving to about 27C for the rest of the week before jumping up to 29.9C on Sunday.
Towards the west, temperatures near Bordeaux will reach up to 32C on Wednesday, continuing to hover around the 30C mark for the rest of the week.
And in Greece, temperatures will stay at about 34C all week, while parts of Turkey along the south western coastline could even hit 41C.