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
December's beginning signals an average high-temperature of a still moderately hot 28.2°C (82.8°F), barely different from November's 28.8°C (83.8°F). In Portete, a slight decrease from the daytime peak is noted during the month of December, with an average low-temperature of 23.4°C (74.1°F).Heat index
During December, the heat index is computed to be a hot 31°C (87.8°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in December in Portete is 72%.Rainfall
In Portete, Costa Rica, during December, the rain falls for 19.6 days and regularly aggregates up to 192mm (7.56") of precipitation. In Portete, during the entire year, the rain falls for 241.5 days and collects up to 1580mm (62.2") of precipitation.Daylight
With an average of 11h and 36min of daylight, December has the shortest days of the year in Portete.On the first day of December, sunrise is at 05:34 and sunset at 17:08. On the last day of the month, sunrise is at 05:49 and sunset at 17:22 CST.
Sunshine
With an average of 7.3h of sunshine, December has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 6, are months with the lowest UV index in Portete. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December in Portete?
What is the average humidity in December in Portete?
How many days does it rain in December in Portete?
What is the month with the shortest days in Portete?
How many hours of daylight does Portete have in December?
When are sunrise and sunset in December in Portete?
What is the month with the least sunshine in Portete?
How long on average sun shines in December in Portete?
What is the month with the lowest UV index in Portete?
How high is the UV index in December in Portete?
Average temperature in December
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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
Portete, 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).
