Altamira Weather in October

The climate in Altamira during October can be summarized as hot, humid and damp.

October is in the fall / autumn in Altamira and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 21°C (70°F) is normal.

On average October is the 5th wettest month of the year in Altamira with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.9 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Altamira in October 2025.