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 snowfall in December
- Average snowfall 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
With the onset of December, the average high-temperature subtly recedes from November's pleasant 21.4°C (70.5°F) to an enjoyable 17.2°C (63°F). El Yunque records an average low-temperature of 6.5°C (43.7°F) throughout the month of December.Humidity
The average relative humidity in December is 44%.Rainfall
In El Yunque, in December, it is raining for 3 days, with typically 13mm (0.51") of accumulated precipitation. Throughout the year, in El Yunque, there are 75 rainfall days, and 174mm (6.85") of precipitation is accumulated.Snowfall
Months with snowfall in El Yunque are January and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, there are 0.9 snowfall days, and 6mm (0.24") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 6:37 am and sunset at 4:59 pm. On the last day of December, in El Yunque, sunrise is at 6:54 am and sunset at 5:11 pm MST.
Sunshine
With an average of 8.3h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 3 in December leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Boost your sun resistance with garments that are densely woven yet spacious. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What are the temperatures in El Yunque in December?
What is the average humidity in December in El Yunque?
How many days does it rain in December in El Yunque?
When does it start snowing in El Yunque?
What is the month with the shortest days in El Yunque?
How many hours of daylight does El Yunque have in December?
When are sunrise and sunset in December in El Yunque?
What is the month with the least sunshine in El Yunque?
How many hours of sunshine does El Yunque have in December?
When is the lowest UV index in El Yunque?
What is the UV index reading in December in El Yunque?
Average temperature in December
El Yunque, Mexico
- Average high temperature in December: 17.2°C
The warmest month (with the highest average high temperature) is June (35.7°C).
The month with the lowest average high temperature is January (16.6°C).
- Average low temperature in December: 6.5°C
The month with the highest average low temperature is July (24.8°C).
The coldest month (with the lowest average low temperature) is January (5.5°C).
Average pressure in December
El Yunque, Mexico
- Average pressure in December: 1017.8mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).
Average wind speed in December
El Yunque, Mexico
- Average wind speed in December: 8.7km/h
The windiest month (with the highest average wind speed) is April (13km/h).
The calmest month (with the lowest average wind speed) is December (8.7km/h).
Average humidity in December
El Yunque, Mexico
- Average humidity in December: 44%
The month with the highest relative humidity is September (45%).
The month with the lowest relative humidity is April (23%).
Average rainfall in December
El Yunque, Mexico
- Average rainfall in December: 13mm
The wettest months (with the highest rainfall) are June and September (29mm).
The driest month (with the least rainfall) is February (3mm).
Average rainfall days in December
El Yunque, Mexico
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
El Yunque, Mexico
- Average snowfall in December: 2mm
The month with the highest snowfall is January (4mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
El Yunque, Mexico
- Average snowfall days in December: 0.3 days
The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
El Yunque, Mexico
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 8h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).
Average sunshine days in December
El Yunque, Mexico
- Average sunshine days in December: 27.3 days
The months with the most sunshine days are January and December (27.3 days).
The months with the least sunshine days are July and September (13.7 days).
Average UV index in December
El Yunque, Mexico
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
El Yunque, Mexico
- Average cloud cover in December: 15
The month with the most cloud cover is September (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 10).
Average visibility in December
El Yunque, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
El Yunque, Mexico
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