The month of October is a bit quieter than its preceding months. The temperatures are still pleasant, around the low 20's. If you would like to take a holiday in Portugal but you don't like the crowds, then this month is the best time to visit as there are not many tourists around and you can roam around the city and the beaches in peace.
In the month of October the average day time temperatures reach highs of 23°C, about 74°F. In the nights the average temperatures fall to the minimum of around 15°C, 59°F.
On the first Sunday of October each year, Portugal celebrates Festa de Nossa Senhora da Esperança: the fiesta includes a Mass and then the locals go around the towns in a procession.
The average daily relative humidity for June is 76%. The average amount of monthly precipitation has been recorded at around 75 mm, that's 3 inches. For the whole month of February one can expect drizzle or rain for 10 days of the month.