Planning for the weather is a good way to make your trip to Penha relaxing and enjoyable, especially when you’re splurging. The hottest months are usually February and January, with an average temperature of 24°C, while the coldest months are July and August, with an average of 17°C. The rainiest months in Penha are January, February, March and December, with each month seeing an average of 205 mm of rainfall.