Porto Novo Weather & Climate: Best Time to Visit

In Porto Novo temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in September, the warmest time of the year, to a pleasant 22°C (72°F) during cooler months like February.

At night, you can expect temperatures ranging from 24°C (75°F) in September to around 19°C (66°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Porto Novo sits in an arid zone with minimal moisture, averaging 144 mm (5.7 in) of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives moderate rainfall, averaging 46 mm (1.8 in) of precipitation, recorded across 5 rainy days. In contrast, the driest month May brings less rainfall, with 1.7 mm (0.1 in) over 3 rainy days. For more details, please visit our Porto Novo Precipitation page.

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

The average number of days each month with precipitation

While the amount of sunshine in Porto Novo varies throughout the year, all seasons offer their own charm. Enjoy up to 10.2 hours of daily sun in May, and experience slightly darker atmosphere in December, with about 6.8 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The mean water temperature over the year ranges from 22°C (72°F) in February to 26°C (79°F) in August.

Water temperature over the year

The relative humidity is high throughout the year in Porto Novo.

The city experiences its highest humidity in September, reaching 77%. In March, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year