La Rioja Province Weather & Climate: Argentina

Climate by month across La Rioja Province, Argentina, average temperatures, rainfall and the best time to visit.

Climate overview of La Rioja Province

When planning a visit to La Rioja Province in Argentina, it helps to know that temperatures typically range from 16°C (61°F) in July up to 31°C (88°F) during the peak of January. Our detailed climate overview is based on data from La Rioja, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

The weather in La Rioja Province during April, May, August, September and October is comfortably warm, with average temperatures ranging from 20°C (68°F) to 26°C (79°F).

The hottest season always takes place in January and December.

When it comes to rainfall, La Rioja Province sees significant variations throughout the year. January tends to be the wettest, receiving 145 mm (5.7 in) of rain, while July is much drier with just 15 mm (0.6 in). For those seeking drier weather, July and August typically see minimal rainfall, never exceeding 16 mm (0.6 in).

December is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Explore La Rioja Province by month

Pick a month to see the average temperature, rainfall and sunshine in La Rioja Province — and find the best time to visit. (based on La Rioja)

Popular cities by month

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La Rioja Talampaya National Park Chilecito Villa Unión
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of La Rioja Province

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

La Rioja 17°C (63°F) 31°C (88°F) 5°C (41°F) 20°C (68°F) 842 mm (33 in) 2,803 hours
Talampaya National Park 18°C (64°F) 35°C (95°F) 2°C (36°F) 21°C (70°F) 600 mm (24 in)
Chilecito 16°C (61°F) 25°C (77°F) 3°C (37°F) 15°C (59°F) 3574 mm (141 in) 2,803 hours
Villa Unión 16°C (61°F) 28°C (82°F) 2°C (36°F) 15°C (59°F) 288 mm (11 in)

Places in La Rioja Province, Argentina

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Bucket list

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