San Marcos Weather in December
San Marcos in December sees very high daytime temperatures of 32°C (90°F) and nighttime lows of 23°C (73°F). With just 14 mm (0.6 in) of rainfall expected, it's a dry month overall.
Rainfall in San Marcos in December
The climate data from previous years indicates about 9 days of rain, averaging 14 mm (0.6 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in San Marcos in December
December is a good time to be in San Marcos. Days are excellent, reaching 32°C (90°F), with nights around 23°C (73°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows of 23°C (73°F), the nights are warm and generally comfortable.
Sunshine in San Marcos in December
Enjoy a sunny month with about 249 hours of sunshine, the clear skies make San Marcos even more beautiful.If you're inclined towards comfortable temperatures and drier conditions, December is a good time to visit San Marcos.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Nicaragua, check out our San Marcos's climate page.
San Marcos Temperature in December
Min Temperature
23°C (73°F)
Max Temperature
32°C (90°F)
Chance of Rain
29%
Precipitation
14 mm (0.6 in)
Rainy days
9 days
Humidity
73% *
Sunshine
249 hours *
Percentage Sunshine
*
Daily Historical Temperatures
41-year average (1976-2025)
Based on our historical records, temperatures in San Marcos typically stay consistent throughout December, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in December
Historical weather for San Marcos in December
Browse day-by-day weather records for San Marcos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Marcos historical weather extremes in December
According to our 29 years of weather records for San Marcos, the following extremes were recorded between 1996 and 2025.
- On December 28, 2025, temperatures climbed to 37°C (99°F), marking the warmest December day on record.
- The coldest December day was on December 27, 2000, with a maximum of 24°C (75°F).
- The lowest overnight temperature recorded in December was 16°C (61°F) (December 28, 1999).
Best Places in Nicaragua in December
Find out more about the weather in Nicaragua and which places have the best travel conditions in this month. See all of Nicaragua in December →
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What to Wear in San Marcos 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. With minimal rainfall expected, you can leave the rain gear at home. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in San Marcos in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Nicaragua, check out our San Marcos's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Marcos climate overview or explore weather in Nicaragua.
