Currently, December is the cheapest month in which you can book a flight from Grimsby to Portimão (average of £72). Flying from Grimsby to Portimão in August is currently the most expensive (average of £232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
In terms of precipitation, rainfall in Portimão ranges from 2.0 - 116.0 inches per month. December is typically the wettest month, when rainfall can reach 116.0 mm. July is typically the driest time to visit Portimão when rainfall is around 2.0 mm.
If weather is an important factor for your trip to Portimão, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.0 C).
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