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
The beginning of December reveals an average high-temperature of a still moderately hot 27.9°C (82.2°F), showing minimal deviation from the previous month. During December, the nighttime temperature averages to a pleasant 22.6°C (72.7°F).Heat index
The heat index value for December is evaluated at a tropical 32°C (89.6°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In December, the average relative humidity in Alegría is 79%.Rainfall
December is the month with the most rainfall in Alegría. Rain falls for 20.7 days and accumulates 214mm (8.43") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 30min of daylight.On the first day of December in Alegría, sunrise is at 05:36 and sunset at 17:11. On the last day of the month, sunrise is at 05:51 and sunset at 17:24 CST.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in December leads to these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the temperature in December in Alegría?
What is the average humidity in December in Alegría?
What is the wettest month in Alegría?
How many days does it rain in December in Alegría?
What is the month with the shortest days in Alegría?
How many hours of daylight does Alegría have in December?
When is the sunrise / sunset in December in Alegría?
What is the month with the least sunshine in Alegría?
How long on average sun shines in December in Alegría?
What are the months with the lowest UV index in Alegría?
What is the UV index reading in December in Alegría?
Average temperature in December
Alegría, Costa Rica
- Average high temperature in December: 27.9°C
The warmest month (with the highest average high temperature) is September (30.6°C).
The month with the lowest average high temperature is January (27.4°C).
- Average low temperature in December: 22.6°C
The month with the highest average low temperature is June (24.7°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).
Average pressure in December
Alegría, Costa Rica
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).
Average wind speed in December
Alegría, Costa Rica
- Average wind speed in December: 7.5km/h
The windiest months (with the highest average wind speed) are February and March (8.9km/h).
The calmest months (with the lowest average wind speed) are August and September (6.8km/h).
Average humidity in December
Alegría, Costa Rica
- Average humidity in December: 79%
The month with the highest relative humidity is November (80%).
The months with the lowest relative humidity are April and September (76%).
Average rainfall in December
Alegría, Costa Rica
- Average rainfall in December: 214mm
The wettest month (with the highest rainfall) is December (214mm).
The driest month (with the least rainfall) is September (59mm).
Average rainfall days in December
Alegría, Costa Rica
- Average rainfall days in December: 20.7 days
The month with the highest number of rainy days is July (23.5 days).
The month with the least rainy days is September (15.4 days).
Average daylight in December /
Average sunshine in December
Alegría, 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: 6h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Alegría, Costa Rica
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is July (7 days).
Average UV index in December
Alegría, Costa Rica
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in December
Alegría, Costa Rica
- Average cloud cover in December: 55
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
Alegría, Costa Rica
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, August, September and October (10km).
The months with the lowest visibility are January, July, November and December (9km).
Alegría, Costa Rica
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