San Luis Weather in December

San Luis in December sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 17°C (63°F). Rainfall is fairly high this month at around 101 mm (4 in), so pack a rain jacket to stay dry.

Rainfall in San Luis in December

Expect around 10 days of rain based on historical data, with 101 mm (4 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in San Luis in December

In December, San Luis sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 17°C (63°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit San Luis. Our weather planner can help you explore destinations with more pleasant weather conditions.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

San Luis Temperature in December

Min Temperature 17°C (63°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 33%  

Precipitation 101 mm (4 in)  

Rainy days 10 days  

What to Wear in San Luis in December

Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in San Luis in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

More climate data for San Luis

Temperature Rainfall

See the full San Luis climate overview or explore weather in Argentina.