Turrialba Weather in December
December in Turrialba typically sees daytime highs of 23°C (73°F) and nighttime lows of 15°C (59°F). December falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Turrialba in December
As part of the rainy season, Turrialba sees around 17 days of rain in December, with an average of 254 mm (10 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in Turrialba in December
December in Turrialba brings high temperatures, with highs of 23°C (73°F) and nights around 15°C (59°F). This kind of day-to-night contrast is typical for this time of year. At 15°C (59°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.
Sunshine in Turrialba in December
There are approximately 244 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.If you prefer enjoying temperate temperatures and rain-free days, February, March and April typically offer 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Turrialba's climate page.
Turrialba Temperature in December
Min Temperature
15°C (59°F)
Max Temperature
23°C (73°F)
Chance of Rain
55%
Precipitation
254 mm (10 in)
Rainy days
17 days
Humidity
74% *
Sunshine
244 hours *
Percentage Sunshine
*
Daily Historical Temperatures
44-year average (1976-2025)
Based on our historical records, temperatures in Turrialba typically stay consistent throughout December, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in December
Daily Historical Precipitation
44-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Turrialba in December
Browse day-by-day weather records for Turrialba spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Turrialba historical weather extremes in December
The extremes listed below come from historical weather data collected in Turrialba from 1996 through 2025.
- The hottest December day on record in Turrialba reached 31°C (88°F) (December 10, 1997).
- On December 11, 2017, Turrialba saw its coldest December day with temperatures maxing out at 20°C (68°F).
- The coldest night in December in Turrialba was on December 7, 2010, with a minimum of 13°C (55°F).
- The wettest December day on record brought 136 mm (5.4 in) of precipitation to Turrialba (December 11, 2003).
Best Places in Costa Rica in December
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Turrialba in December
Pleasant temperatures in December mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Turrialba 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 Costa Rica, check out our Turrialba's climate page.
Temperature Rainfall Sunshine Humidity
See the full Turrialba climate overview or explore weather in Costa Rica.
