Ílhavo Weather & Climate: Best Time to Visit

In Ílhavo, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 27°C (81°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 15°C (59°F).

At night, temperatures range from around 17°C (63°F) in August to 8°C (46°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Ílhavo experiences significant rainfall throughout the year, averaging 1077 mm (42 in) of precipitation annually. Ílhavo can be quite wet during November, receiving approximately 144 mm (5.7 in) of precipitation over 15 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 14 mm (0.6 in) of precipitation spread across 6 rainy days. For more details, please visit our Ílhavo Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Ílhavo can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.6 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Ílhavo.

The city experiences its highest humidity in January, reaching 78%. In July, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year