San Marcos
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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.

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).

San Marcos Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Marcos - and find the best time to visit.

Best Places in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

San Marcos 3-Day Forecast

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.