Mejillones Weather & Climate: Best Time to Visit

The climate in Mejillones remains fairly constant, offering pleasant temperatures throughout the year. Average daytime temperatures reach a comfortable 25°C (77°F) in February. In July, the coolest month of the year, temperatures drop to a pleasant 19°C (66°F).

At night, temperatures range from around 19°C (66°F) in February to 13°C (55°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Mejillones experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 63 mm (2.5 in) annually. Despite minor fluctuations, Mejillones enjoys fairly consistent precipitation throughout the year. In June, you can expect around 11 mm (0.4 in) of precipitation, while in February, Mejillones receives about 1.7 mm (0.1 in). For more details, please visit our Mejillones Precipitation page.

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

The average number of days each month with precipitation

Mejillones experiences moderate variation in sunshine hours across the seasons. With 10.3 hours daily sunshine in January, it dips to 6.7 hours in June, offering a balanced mix of sunny and overcast days.

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 Mejillones.

The city experiences its highest humidity in April, reaching 79%. In December, the humidity drops to its lowest level at 74%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year