San Marcos Weather in December

Thinking of visiting San Marcos in December? Expect moderate temperatures reaching 17°C (63°F) during the day, dropping to 5°C (41°F) at night, with some rainfall likely.

Rainfall in San Marcos in December

You can typically expect 8 days of rain this month, averaging around 45 mm (1.8 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in San Marcos in December

December in San Marcos brings moderate temperatures, with highs of 17°C (63°F) and nights around 5°C (41°F). During December, you'll experience the winter season. The difference between afternoon and evening temperatures is usually noticeable. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in San Marcos in December

The month brings about 154 hours of sunlight, offering a comfortable mix of sun and overcast.

For San Marcos itself, March, April and November generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
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For a detailed overview over the year and the best time to visit the United States of America, check out our San Marcos's climate page.

San Marcos Temperature in December

Min Temperature 5°C (41°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 28%  

Precipitation 45 mm (1.8 in)  

Rainy days 8 days  

Humidity 68% *  

Sunshine 154 hours *  

Percentage Sunshine 49% *  

* Data from: Austin, the United States of America (51 KM, 32 Miles).

What to Wear in San Marcos in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in San Marcos in December

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

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

5/10

Outdoor sports

10/10

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 the United States of America, check out our San Marcos's climate page.

More climate data for San Marcos

Temperature Rainfall Sunshine Humidity

See the full San Marcos climate overview or explore weather in the United States of America.