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
December
Weather in December
Temperature
The arrival of December coincides with an average high-temperature of a still moderately hot 28.2°C (82.8°F), indicating a minimal shift from November's 28.8°C (83.8°F). Cocal, in December, registers a nighttime average temperature of 23.4°C (74.1°F).Heat index
The average heat index in December is estimated at a hot 31°C (87.8°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In Cocal, Costa Rica, the average relative humidity in December is 72%.Rainfall
In Cocal, in December, it is raining for 19.6 days, with typically 192mm (7.56") of accumulated precipitation. Throughout the year, in Cocal, there are 241.5 rainfall days, and 1580mm (62.2") of precipitation is accumulated.Daylight
With an average of 11h and 36min of daylight, December has the shortest days of the year.On the first day of December in Cocal, sunrise is at 05:34 and sunset at 17:09. On the last day of the month, sunrise is at 05:49 and sunset at 17:22 CST.
Sunshine
December has the least sunshine of the year, with an average of 7.3h of sunshine.UV index
January, February and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Cocal during December?
What is the average humidity in December in Cocal?
How much does it rain in Cocal in December?
What is the month with the shortest days in Cocal?
What is the average length of the day in December in Cocal?
When are sunrise and sunset in December in Cocal?
What is the month with the least sunshine in Cocal?
How long on average sun shines in December in Cocal?
What are the months with the lowest UV index in Cocal?
How high is the UV index in December in Cocal?
Average temperature in December
Cocal, Costa Rica
- Average high temperature in December: 28.2°C
The warmest month (with the highest average high temperature) is September (30°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in December: 23.4°C
The months with the highest average low temperature are May and June (25.3°C).
The coldest month (with the lowest average low temperature) is February (22.8°C).
Average pressure in December
Cocal, 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 (1010.9mbar).
Average wind speed in December
Cocal, Costa Rica
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is November (9.7km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).
Average humidity in December
Cocal, Costa Rica
- Average humidity in December: 72%
The months with the highest relative humidity are May and June (74%).
The month with the lowest relative humidity is September (71%).
Average rainfall in December
Cocal, Costa Rica
- Average rainfall in December: 192mm
The wettest month (with the highest rainfall) is July (203mm).
The driest month (with the least rainfall) is April (65mm).
Average rainfall days in December
Cocal, Costa Rica
- Average rainfall days in December: 19.6 days
The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is February (15.7 days).
Average daylight in December /
Average sunshine in December
Cocal, 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: 7h and 2min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in December
Cocal, Costa Rica
- Average sunshine days in December: 9.1 days
The month with the most sunshine days is January (10.6 days).
The month with the least sunshine days is July (3.2 days).
Average UV index in December
Cocal, Costa Rica
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in December
Cocal, Costa Rica
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Cocal, Costa Rica
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
