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
December reports an average high-temperature of a still moderately hot 26.5°C (79.7°F), slightly varied from November's 25.9°C (78.6°F). December's nights in Alfaro observe an average temperature of 17.2°C (63°F).Humidity
In Alfaro, Costa Rica, the average relative humidity in December is 81%.Rainfall
In Alfaro, in December, it is raining for 18.3 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, in Alfaro, there are 272 rainfall days, and 2217mm (87.28") of precipitation is accumulated.Daylight
With an average of 11h and 30min of daylight, December has the shortest days of the year in Alfaro.On the first day of December in Alfaro, sunrise is at 05:40 and sunset at 17:14. On the last day of the month, sunrise is at 05:54 and sunset at 17:27 CST.
Sunshine
In December, the average sunshine in Alfaro, Costa Rica, is 8.7h.UV index
The months with the highest UV index are January through April, June, July, September, October and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What are the temperatures in Alfaro in December?
What is the average humidity in December in Alfaro?
How much does it rain in Alfaro in December?
What is the month with the shortest days in Alfaro?
How many hours of daylight does Alfaro have in December?
When are sunrise and sunset in December in Alfaro?
How many hours of sunshine does Alfaro have in December?
When is the highest UV index in Alfaro?
What is the UV index reading in December in Alfaro?
Average temperature in December
Alfaro, Costa Rica
- Average high temperature in December: 26.5°C
The warmest months (with the highest average high temperature) are March and April (29.7°C).
The month with the lowest average high temperature is October (25.4°C).
- Average low temperature in December: 17.2°C
The month with the highest average low temperature is May (19.8°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in December
Alfaro, Costa Rica
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).
Average wind speed in December
Alfaro, Costa Rica
- Average wind speed in December: 8.7km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is September (3.8km/h).
Average humidity in December
Alfaro, Costa Rica
- Average humidity in December: 81%
The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Alfaro, Costa Rica
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is October (396mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in December
Alfaro, Costa Rica
- Average rainfall days in December: 18.3 days
The month with the highest number of rainy days is October (30.2 days).
The month with the least rainy days is February (10.3 days).
Average daylight in December /
Average sunshine in December
Alfaro, Costa Rica
- Average daylight in December: 11h and 3min
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 30min).
- Average sunshine in December: 8h and 4min
The month with the most sunshine is March (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 0min).
Average sunshine days in December
Alfaro, Costa Rica
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (0.5 days).
Average UV index in December
Alfaro, Costa Rica
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, June, July, September, October and December (UV index 6).
The months with the lowest UV index are May, August and November (UV index 5).
Average cloud cover in December
Alfaro, Costa Rica
- Average cloud cover in December: 33
The month with the most cloud cover is October (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in December
Alfaro, Costa Rica
- Average visibility in December: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (7km).
Alfaro, Costa Rica
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