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October is one of the excellent months to visit Alter do Chão, with daytime temperatures of 24°C (75°F) and lows of 13°C (55°F) at night. Do keep in mind it is the rainiest month of the year, with 84 mm (3.3 in) of rainfall on average.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in Alter do Chão - and find the best time to visit.
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in October →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
For Alter do Chão in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Alter do Chão climate overview or explore weather in Portugal.
Where to go in October - average daytime high across popular destinations.
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