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Mejillones Weather and Climate: A Comprehensive Guide

Mejillones maintains a fairly consistent pleasant average temperature. The city sits in an arid zone with minimal moisture. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

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

At night, you can expect cooler temperatures, with averages dropping to around 13°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Mejillones experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 63 mm annually. Despite minor fluctuations, Mejillones enjoys fairly consistent precipitation throughout the year. In June, you can expect around 11 mm of precipitation, while in February, Mejillones receives about 1.7 mm.

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

Sunshine over the year

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

Data from: Antofagasta, Chile (37 KM, 23 Miles).

Daily hours of sunshine

Data from: Antofagasta, Chile (37 KM, 23 Miles).

Forecast for Mejillones

Sun   Jan 05
26°C | 18°C
SW 5 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Jan 06
24°C | 18°C
W 4 m/s
overcast and no rain

overcast and no rain

Tue   Jan 07
25°C | 19°C
SW 5 m/s
partly cloudy and no rain

partly cloudy and no rain

Select a Month of Interest

Check the weather conditions for any month in Mejillones.

The best time of year to visit Mejillones in Chile

During the months of January, February, March, April, May, October, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Mejillones?
    February has an average maximum temperature of 25°C and is the warmest month of the year.
  • Which is the coldest month in Mejillones?
    The coldest month is July with an average maximum temperature of 19°C.
  • Which is the wettest month in Mejillones?
    June tops the wettest month list with 11 mm of rainfall.
  • Which is the driest month in Mejillones?
    February is the driest month with 2 mm of precipitation.
  • Which is the sunniest month in Mejillones?
    January is the sunniest month with an average of 310 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.