San Isidro Weather in December

With daytime temperatures of 28°C (82°F) and nighttime lows of 18°C (64°F), December in San Isidro brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 91 mm (3.6 in) falls on average.

Rainfall in San Isidro in December

Expect around 9 days of rain based on historical data, with 91 mm (3.6 in) average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in San Isidro in December

December is one of the better months to visit San Isidro. Expect 28°C (82°F) during the day and 18°C (64°F) at night. December marks the summer season. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in San Isidro in December

Enjoy a sunny month with about 273 hours of sunshine, the clear skies make San Isidro even more beautiful.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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 Isidro's climate page.

San Isidro Temperature in December

Min Temperature 18°C (64°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 29%  

Precipitation 91 mm (3.6 in)  

Rainy days 9 days  

Humidity 63% *  

Sunshine 273 hours *  

Percentage Sunshine *  

* Data from: Buenos Aires, Argentina (39 KM, 24 Miles).

What to Wear in San Isidro 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in San Isidro in December

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

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 Isidro's climate page.

More climate data for San Isidro

Temperature Rainfall Sunshine Humidity

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