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Weather in December in San Juan Province

Considering a trip to San Juan Province this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in San Juan Province in December?

San Juan Province is a region in Argentina. December in San Juan Province generally has temperatures that range from warm to very warm, with precipitation levels ranging from moderate to high. December falls during the summer season.

Temperatures

During the day the temperature is warm in Barreal at 25°C and very warm in San Juan at 32°C. As night falls, temperatures generally drop to 17°C in San Juan and 9°C in Barreal. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

To learn more about the conditions in specific areas of San Juan Province, check out the map below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Barreal with an average of 32 mm to high rainfall in San Agustín de Valle Fértil with 102 mm. Going by our weather data, it is the wettest month of the year in San Juan.

Average sunshine

The city San Juan usually sees around 350 hours of sunlight, indicating many sunny days.

For a more detailed look at San Juan Province's conditions throughout the year, check out our San Juan Province climate page.

Where to go in San Juan Province in December

Find more information for the most popular destinations in the San Juan Province on the map below. Click on a destination dot for more details.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Argentina, check out our San Juan Province's climate page.

Popular destinations

What is the weather like in December for the 3 most popular destinations in San Juan Province?

San Juan

In December San Juan generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 17°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

San Juan
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
30°C 
15°C 
326 hours 
31 mm 
3 days 
32°C 
17°C 
350 hours 
40 mm 
4 days 
Annual   >> Annual
>>  
26°C 
11°C 
3,365 hours 
324 mm 
33 days 
poor 
Climate in San Juan

Barreal

In December Barreal generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Barreal
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
23°C 
6°C 
25 mm 
4 days 
25°C 
9°C 
32 mm 
5 days 
Annual   >> Annual
>>  
19°C 
3°C 
352 mm 
49 days 
poor 
Climate in Barreal

San Agustín de Valle Fértil

In December San Agustín de Valle Fértil generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 17°C and high monthly rainfall. So on average the conditions are tolerable that month.

San Agustín de Valle Fértil
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
28°C 
15°C 
70 mm 
3 days 
30°C 
17°C 
102 mm 
5 days 
Annual   >> Annual
>>  
23°C 
11°C 
674 mm 
37 days 
poor 
Climate in San Agustín de Valle Fértil

Is your destination not in the list? Have a look at other destinations in San Juan Province, in Argentina.

Is December the best time to visit San Juan Province?

In our view, December might not be the best time to travel to San Juan Province with often pleasant weather in San Juan.

On average, the best time to visit San Juan Province is in March, April, May, June, July, August, September and October with generally perfect weather in San Juan.

Interested in more climate information?

We have much more information about the climate in San Juan Province.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.