Cycling: Portugal Climate and Geography.
“The sun is out 300 days per year with few raining days” and it is perfect for cycling. Portugal coastline as nearly 1800 km, including the Madeira and Azores islands.
In general Portugal offers warm and sunny summers, mild winters, and autumn and spring are normally warm however with some wind and rainfall.
The winter in Portugal generally starts in late November and lasts till February. March, April and October are normally very mild and the summer period is a nice long period from May to September.