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 brings an average high-temperature of a still moderately hot 26.5°C (79.7°F), nearly identical to November's 27.4°C (81.3°F). Nighttime temperature sees a small decrement from daytime highs, dipping to an average of 22.3°C (72.1°F) during December.Humidity
In Chelem, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 11.2 days. Throughout December, 23mm (0.91") of precipitation is accumulated. In Chelem, during the entire year, the rain falls for 165.2 days and collects up to 489mm (19.25") of precipitation.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year.On the first day of December in Chelem, sunrise is at 6:20 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 5:28 pm CST.
Sunshine
In Chelem, the average sunshine in December is 6.8h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: In December, a daily UV index of 6 turns into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Chelem?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Chelem, Mexico
- Average high temperature in December: 26.5°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (25.3°C).
- Average low temperature in December: 22.3°C
The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (21°C).
Average pressure in December
Chelem, Mexico
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is January (1017.8mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).
Average wind speed in December
Chelem, Mexico
- Average wind speed in December: 19.9km/h
The windiest month (with the highest average wind speed) is March (23.1km/h).
The calmest month (with the lowest average wind speed) is September (17km/h).
Average humidity in December
Chelem, Mexico
- Average humidity in December: 77%
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Chelem, Mexico
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (81mm).
The driest months (with the least rainfall) are February and March (12mm).
Average rainfall days in December
Chelem, Mexico
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is September (19.8 days).
The month with the least rainy days is March (7.5 days).
Average daylight in December /
Average sunshine in December
Chelem, Mexico
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Chelem, Mexico
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is March (21.4 days).
The month with the least sunshine days is September (7.2 days).
Average UV index in December
Chelem, Mexico
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in December
Chelem, Mexico
- Average cloud cover in December: 27
The month with the most cloud cover is January (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 18).
Average visibility in December
Chelem, 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).
