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San Carlos Weather in December
In San Carlos, December brings high daytime temperatures around 29°C (84°F), with nights cooling to 23°C (73°F). Expect quite a bit of rainfall this month.
Rainfall in San Carlos in December
Records from the past 30 years suggest around 14 days of rain, with 135 mm (5.3 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in San Carlos in December
San Carlos in December gets highs of 29°C (84°F) during the day and drops to 23°C (73°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 23°C (73°F), the nights are warm and generally comfortable. While slightly cooler, this month still offers warm and pleasant weather.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January typically offers the best weather for San Carlos.
San Carlos Temperature in December
Min Temperature
23°C (73°F)
Max Temperature
29°C (84°F)
Chance of Rain
45%
Precipitation
135 mm (5.3 in)
Rainy days
14 days
Humidity
88% *
* Data from: Los Chiles, Costa Rica (12 KM, 7 Miles).
San Carlos Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Carlos - and find the best time to visit.
Historical weather records for San Carlos in December
Browse day-by-day weather records for San Carlos spanning 23 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Carlos historical weather extremes in December
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in San Carlos.
- San Carlos recorded its highest December temperature of 32°C (90°F) on December 14, 2015.
- The coldest December day was on December 3, 2024, with a maximum of 24°C (75°F).
- The coldest night in December in San Carlos was on December 18, 2010, with a minimum of 17°C (63°F).
- The wettest December day on record brought 63 mm (2.5 in) of precipitation to San Carlos (December 12, 2016).
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 →
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 Carlos in December
Warm but pleasant conditions in San Carlos in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.
What To Do in San Carlos in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
San Carlos 3-Day Forecast
More climate data for San Carlos
See the full San Carlos climate overview or explore weather in Nicaragua.
Popular in December
Where to go in December - average daytime high across popular destinations.
Managua
33°C (91°F) León33°C (91°F) Granada31°C (88°F) Popoyo30°C (86°F) Estelí
29°C (84°F) San Juan del Sur29°C (84°F) Big Corn Island
28°C (82°F) Moyogalpa29°C (84°F) Bucket list
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