Note: Due to Morocco's proximity to the Sahara desert and the North Sea of the Atlantic Ocean, two phenomena occur to influence the regional seasonal temperatures, either by raising temperatures by 7–8 degrees Celsius when sirocco blows from the east creating heatwaves, or by lowering temperatures by 7–8 degrees Celsius when cold damp air blows from the northwest, creating a coldwave or cold spell. However, these phenomena don't last for more than 2 to 5 days on average.