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 weather during December records an average high-temperature of a still moderately hot 29.6°C (85.3°F), closely mirroring the preceding month. An average low-temperature of 20.7°C (69.3°F) is expected during December.Heat index
The heat index value for December is appraised at a hot 34°C (93.2°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.In terms of the heat index, values are set with light wind and shade conditions in mind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In December, the average relative humidity is 69%.Rainfall
In Nahuizalco, in December, it is raining for 1.7 days, with typically 3mm (0.12") of accumulated precipitation. Throughout the year, there are 166.9 rainfall days, and 832mm (32.76") of precipitation is accumulated.Daylight
With an average of 11h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:07 and sunset at 17:29. On the last day of December, in Nahuizalco, sunrise is at 06:22 and sunset at 17:42 CST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.7h of sunshine.UV index
The months with the lowest UV index are June, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 6 transforms into these recommendations:
Fend off overexposure. Sun protection is vital. 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. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December in Nahuizalco?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index in Nahuizalco?
How high is the UV index in December?
Average temperature in December
Nahuizalco, El Salvador
- Average high temperature in December: 29.6°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (28.6°C).
- Average low temperature in December: 20.7°C
The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in December
Nahuizalco, El Salvador
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in December
Nahuizalco, El Salvador
- Average wind speed in December: 9.4km/h
The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is June (6.1km/h).
Average humidity in December
Nahuizalco, El Salvador
- Average humidity in December: 69%
The months with the highest relative humidity are September and October (81%).
The month with the lowest relative humidity is March (64%).
Average rainfall in December
Nahuizalco, El Salvador
- Average rainfall in December: 3mm
The wettest month (with the highest rainfall) is October (161mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in December
Nahuizalco, El Salvador
- Average rainfall days in December: 1.7 days
The month with the highest number of rainy days is September (24 days).
The month with the least rainy days is December (1.7 days).
Average daylight in December /
Average sunshine in December
Nahuizalco, 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 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in December
Nahuizalco, El Salvador
- Average sunshine days in December: 28.6 days
The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (4.4 days).
Average UV index in December
Nahuizalco, El Salvador
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May and July (UV index 7).
The months with the lowest UV index are June, August, September, October, November and December (UV index 6).
Average cloud cover in December
Nahuizalco, El Salvador
- Average cloud cover in December: 12
The months with the most cloud cover are June and September (Cloud cover 37).
The months with the least cloud cover are January and December (Cloud cover 12).
Average visibility in December
Nahuizalco, El Salvador
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, November and December (10km).
The month with the lowest visibility is October (9km).
