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 is the coldest month, with the temperature often reaching an average high of 27.4°C (81.3°F) and an average low of 22.3°C (72.1°F).Heat index
The average heat index in December is appraised at a hot 31°C (87.8°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
July and December, with an average relative humidity of 86%, are the most humid months in Upala.Rainfall
In December, the rain falls for 24.4 days. Throughout December, 86mm (3.39") of precipitation is accumulated. In Upala, during the entire year, the rain falls for 295.8 days and collects up to 1656mm (65.2") of precipitation.Daylight
The month with the shortest days in Upala is December, with an average of 11h and 30min of daylight.On the first day of December, sunrise is at 05:43 and sunset at 17:15. On the last day of the month, sunrise is at 05:58 and sunset at 17:28 CST.
Sunshine
The average sunshine in December is 5.6h.UV index
The months with the lowest UV index are January, February, July, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 6 in December suggests the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What month is the coldest in Upala?
What are the temperatures in Upala in December?
What is the most humid month in Upala?
What is the average humidity in December in Upala?
How much does it rain in Upala in December?
What is the month with the shortest days in Upala?
How many hours of daylight does Upala have in December?
When is the sunrise / sunset in December in Upala?
How long on average sun shines in December in Upala?
What are the months with the lowest UV index in Upala?
How high is the UV index in December in Upala?
Average temperature in December
Upala, Costa Rica
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is April (32.2°C).
The month with the lowest average high temperature is December (27.4°C).
- Average low temperature in December: 22.3°C
The month with the highest average low temperature is May (24.4°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).
Average pressure in December
Upala, Costa Rica
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is January (1012.3mbar).
The month with the lowest atmospheric pressure is October (1010.4mbar).
Average wind speed in December
Upala, Costa Rica
- Average wind speed in December: 12.6km/h
The windiest month (with the highest average wind speed) is March (14.4km/h).
The calmest month (with the lowest average wind speed) is September (7.7km/h).
Average humidity in December
Upala, Costa Rica
- Average humidity in December: 86%
The months with the highest relative humidity are July and December (86%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Upala, Costa Rica
- Average rainfall in December: 86mm
The wettest month (with the highest rainfall) is October (257mm).
The driest month (with the least rainfall) is March (24mm).
Average rainfall days in December
Upala, Costa Rica
- Average rainfall days in December: 24.4 days
The month with the highest number of rainy days is July (30 days).
The month with the least rainy days is March (17.3 days).
Average daylight in December /
Average sunshine in December
Upala, Costa Rica
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 8h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Upala, Costa Rica
- Average sunshine days in December: 4.2 days
The month with the most sunshine days is March (10.7 days).
The month with the least sunshine days is July (0.4 days).
Average UV index in December
Upala, Costa Rica
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, August and September (UV index 7).
The months with the lowest UV index are January, February, July, October, November and December (UV index 6).
Average cloud cover in December
Upala, Costa Rica
- Average cloud cover in December: 58
The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 39).
Average visibility in December
Upala, Costa Rica
- Average visibility in December: 9km
The months with the highest visibility are February, March and April (10km).
The months with the lowest visibility are January, May, June, July, August, September, October, November and December (9km).
Upala, Costa Rica
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