San José Weather in December

During December, San José experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 18°C (64°F). Expect quite a bit of rainfall. Around 121 mm (4.8 in) is typical.

Rainfall in San José in December

Historically, the month has about 8 days of rain, averaging 121 mm (4.8 in) in total. 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 José in December

December in San José brings very high temperatures, with highs of 31°C (88°F) and nights around 18°C (64°F). For most visitors, the main thing to prepare for is the heat during the day. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

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

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

San José Temperature in December

Min Temperature 18°C (64°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 28%  

Precipitation 121 mm (4.8 in)  

Rainy days 8 days  

What to Wear in San José 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 José 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 José's climate page.

More climate data for San José

Temperature Rainfall

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