Average weather for La Rioja in December
It's hot in December in La Rioja with an average temperature of 34°C. Temperatures this month range from a low of 31°C to a high of 37°C. At night, you can expect temperatures between 19°C and 23°C.
Start of December
The month of December starts in La Rioja with hot temps, averaging around 33°C during the day and nights around 21°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid December
By mid-December, daytime temps rise to around 35°C, with nights around 22°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of December
By the end of December, the average daytime temperature in La Rioja is around 36°C, while nighttime temps are about 23°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
In December, there is an average of 98 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the South.
La Rioja in December |
New York | ||
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34°C | 9°C | |
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37°C | 12°C | |
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31°C | -5°C | |
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98 mm | 133 mm | |
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7 days | 17 days |
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit La Rioja?
December is a good month to be in La Rioja for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 45°C in 2017, La Rioja reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 19°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 29°C.
Check out the climate of La Rioja for all months and discover the best travel time
Curious about the weather in other parts of Argentina? Check out the climate and weather for spots like Buenos Aires, Patagonia, Ushuaia, or explore other destinations in Argentina.
Daily Temperature in December in La Rioja
This chart shows the average daily high and low temperatures in December for La Rioja, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in La Rioja
The chart below shows the average daily precipitation in December for La Rioja, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 7 days of precipitation in La Rioja.
Daily UV index in December in La Rioja
This chart shows the average daily UV index in December in La Rioja, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in La Rioja over the years
This chart shows the average temperature in December in La Rioja, measured in degrees Celsius, over the past few years.
Total precipitation in December in La Rioja over the years
This chart shows the average precipitation in December in La Rioja, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in December for La Rioja
Click on any day in December to get detailed info about the usual weather on that day in La Rioja. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in December in La Rioja
Have you been to La Rioja in December?
Share your weather experience in December in La Rioja.
Average weather in La Rioja by month
Click on a month below to see detailed weather info for La Rioja. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.