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
As Chalchuapa, El Salvador, steps into December, the average high-temperature is measured at a still warm 28.4°C (83.1°F), displaying minor differences from November's 28°C (82.4°F). December nights in Chalchuapa are marked by an average low-temperature of 16.6°C (61.9°F).Heat index
The average heat index in December is computed to be a tropical 32°C (89.6°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Know that the heat index computations account for shaded terrains and slight winds. Being under direct sunlight might amplify the heat index 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. 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. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In December, the average relative humidity is 74%.Rainfall
In Chalchuapa, in December, during 2.3 rainfall days, 5mm (0.2") of precipitation is typically accumulated. In Chalchuapa, during the entire year, the rain falls for 181.4 days and collects up to 1055mm (41.54") of precipitation.Daylight
With an average of 11h and 18min of daylight, December has the shortest days of the year in Chalchuapa, El Salvador.On the first day of the month, sunrise is at 06:07 and sunset at 17:28. On the last day of December, in Chalchuapa, sunrise is at 06:22 and sunset at 17:41 CST.
Sunshine
In December, the average sunshine in Chalchuapa is 7.6h.UV index
The months with the highest UV index in Chalchuapa, El Salvador, are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 6 during December morphs into the following directions:
Deflect overexposure. Sun protection is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December in Chalchuapa?
What is the average humidity in December in Chalchuapa?
How much does it rain in Chalchuapa in December?
What is the month with the shortest days in Chalchuapa?
How many hours of daylight does Chalchuapa have in December?
When is the sunrise / sunset in December in Chalchuapa?
How many hours of sunshine does Chalchuapa have in December?
What are the months with the highest UV index in Chalchuapa?
What is the UV index reading in December in Chalchuapa?
Average temperature in December
Chalchuapa, El Salvador
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is April (33.2°C).
The month with the lowest average high temperature is October (27.9°C).
- Average low temperature in December: 16.6°C
The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in December
Chalchuapa, El Salvador
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are May and October (1011.7mbar).
Average wind speed in December
Chalchuapa, El Salvador
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is January (9km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).
Average humidity in December
Chalchuapa, El Salvador
- Average humidity in December: 74%
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).
Average rainfall in December
Chalchuapa, El Salvador
- Average rainfall in December: 5mm
The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in December
Chalchuapa, El Salvador
- Average rainfall days in December: 2.3 days
The month with the highest number of rainy days is June (25 days).
The month with the least rainy days is January (1.9 days).
Average daylight in December /
Average sunshine in December
Chalchuapa, El Salvador
- Average daylight in December: 11h and 2min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).
Average sunshine days in December
Chalchuapa, El Salvador
- Average sunshine days in December: 28.5 days
The months with the most sunshine days are January and December (28.5 days).
The month with the least sunshine days is September (3.7 days).
Average UV index in December
Chalchuapa, El Salvador
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in December
Chalchuapa, El Salvador
- Average cloud cover in December: 20
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
Chalchuapa, El Salvador
- Average visibility in December: 9km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).
