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EcuadorThe weather in December in Costa Rica
It's warm in December in Costa Rica with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 21°C and 23°C.
Looking for great weather? December is a good time to be in Costa Rica. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Costa Rica, Ecuador. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2015, Costa Rica reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 24°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 25°C.
Rainfall amount
In December, there is an average of 43 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the Northwest.
Daily weather in December for Costa Rica
Click on any day in December to get detailed info about the usual weather on that day in Costa Rica. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Costa Rica | New York | |
|---|---|---|
| Average temperature | 29°C | 9°C |
| Max. temperature | 30°C | 12°C |
| Min. temperature | 21°C | -5°C |
| Total precipitation | 43 mm | 133 mm |
| Rainy days | 8 days | 17 days |
Start of December
The month of December starts in Costa Rica with hot temps, averaging around 29°C during the day and nights around 22°C.
Mid December
By mid-December, daytime temps rise to around 30°C, with nights around 22°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Costa Rica is around 30°C, while nighttime temps are about 23°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Costa Rica for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Costa Rica, Ecuador. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Costa Rica
Temperature in December in Costa Rica over the years
Precipitation charts
These charts show the average amount of precipitation in December in Costa Rica, Ecuador. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Costa Rica
Total precipitation in December in Costa Rica over the years
Daily UV index in December in Costa Rica
This chart shows the average daily UV index in December in Costa Rica, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Costa Rica
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Average weather in Costa Rica by month
Click on a month below to see detailed weather info for Costa Rica. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.