El Castillo de La Fortuna Weather in December
In El Castillo de La Fortuna, December brings high daytime temperatures around 27°C (81°F), with nights cooling to 20°C (68°F). Expect quite a bit of rainfall this month.
Rainfall in El Castillo de La Fortuna in December
You can expect rain on around 14 days based on historical patterns, with 154 mm (6.1 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in El Castillo de La Fortuna in December
In December, expect high temperatures in El Castillo de La Fortuna, with highs of 27°C (81°F) and lows of 20°C (68°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 20°C (68°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. Despite being the month with the lowest temperatures, it remains comfortably warm throughout.
Sunshine in El Castillo de La Fortuna in December
The days are predominantly sunny, with an estimated total of around 233 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If you prefer dry days with pleasant temperatures, January, February and March 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 El Castillo de La Fortuna's climate page.
El Castillo de La Fortuna Temperature in December
Min Temperature
20°C (68°F)
Max Temperature
27°C (81°F)
Chance of Rain
46%
Precipitation
154 mm (6.1 in)
Rainy days
14 days
Sunshine
233 hours *
Percentage Sunshine
*
Daily Historical Temperatures
44-year average (1976-2025)
Based on our historical records, temperatures in El Castillo de La Fortuna typically stay consistent throughout December, with daily highs averaging around 27°C (81°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 El Castillo de La Fortuna in December
Browse day-by-day weather records for El Castillo de La Fortuna spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
El Castillo de La Fortuna historical weather extremes in December
The extremes listed below come from historical weather data collected in El Castillo de La Fortuna from 1996 through 2025.
- On December 23, 1997, temperatures climbed to 34°C (93°F), marking the warmest December day on record.
- The coldest December day was on December 11, 2017, with a maximum of 22°C (72°F).
- El Castillo de La Fortuna registered its coldest December night on December 7, 2010, with temperatures dropping to 13°C (55°F).
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 El Castillo de La Fortuna 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in El Castillo de La Fortuna 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 El Castillo de La Fortuna's climate page.
See the full El Castillo de La Fortuna climate overview or explore weather in Costa Rica.
