Weather is probably a major factor when you plan your trip to Samieira, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 19°C, while the coldest months are February and January, with an average of 10°C. The rainiest months in Samieira are October, December, November and January, with each month seeing an average of 222 mm of rainfall.