Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
San Rafael, Costa Rica, records a slight change with December's average high-temperatures adjusting to a still pleasant 22.7°C (72.9°F) from November's 22.4°C (72.3°F). San Rafael observes an average nighttime low-temperature of 14.3°C (57.7°F) during the month of December.Humidity
The average relative humidity in December is 83%.Rainfall
In December, in San Rafael, the rain falls for 23 days. Throughout December, 79mm (3.11") of precipitation is accumulated. Throughout the year, there are 305 rainfall days, and 2534mm (99.76") of precipitation is accumulated.Daylight
The month with the shortest days in San Rafael is December, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 05:38 and sunset at 17:13. On the last day of December, in San Rafael, sunrise is at 05:53 and sunset at 17:26 CST.
Sunshine
The average sunshine in December is 8h.UV index
The months with the highest UV index in San Rafael, Costa Rica, are January through December, with an average maximum UV index of 5. The months with the lowest UV index in San Rafael are January through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 5 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the temperature in December in San Rafael?
What is the average humidity in December in San Rafael?
How many days does it rain in December in San Rafael?
What is the month with the shortest days in San Rafael?
How many hours of daylight does San Rafael have in December?
What time are sunrise and sunset in December in San Rafael?
How many hours of sunshine does San Rafael have in December?
What are the months with the highest UV index in San Rafael?
What is the month with the lowest UV index in San Rafael?
How high is the UV index in December in San Rafael?
Average temperature in December
San Rafael, Costa Rica
- Average high temperature in December: 22.7°C
The warmest month (with the highest average high temperature) is April (25.3°C).
The month with the lowest average high temperature is October (22.2°C).
- Average low temperature in December: 14.3°C
The month with the highest average low temperature is May (16.9°C).
The coldest month (with the lowest average low temperature) is January (13.7°C).
Average pressure in December
San Rafael, Costa Rica
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is January (1012.4mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).
Average wind speed in December
San Rafael, Costa Rica
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is February (8.6km/h).
The calmest month (with the lowest average wind speed) is September (3.7km/h).
Average humidity in December
San Rafael, Costa Rica
- Average humidity in December: 83%
The month with the highest relative humidity is October (90%).
The month with the lowest relative humidity is February (76%).
Average rainfall in December
San Rafael, Costa Rica
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is October (444mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in December
San Rafael, Costa Rica
- Average rainfall days in December: 23 days
The month with the highest number of rainy days is October (30.5 days).
The month with the least rainy days is February (14.9 days).
Average daylight in December /
Average sunshine in December
San Rafael, Costa Rica
- Average daylight in December: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is October (Average sunshine: 6h and 30min).
Average sunshine days in December
San Rafael, Costa Rica
- Average sunshine days in December: 4.9 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is October (0.1 days).
Average UV index in December
San Rafael, Costa Rica
- Average UV index in December: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in December
San Rafael, Costa Rica
- Average cloud cover in December: 44
The month with the most cloud cover is October (Cloud cover 61).
The month with the least cloud cover is February (Cloud cover 31).
Average visibility in December
San Rafael, Costa Rica
- Average visibility in December: 8km
The months with the highest visibility are January, February and March (9km).
The months with the lowest visibility are September and October (6km).
San Rafael, Costa Rica
Weather forecast for your location
2. Allow the app to use your location
