December weather forecastMecatlán, Mexico
December
Weather in December
December, the first month of the winter in Mecatlán, is still a comfortable month, with an average temperature fluctuating between 8.9°C (48°F) and 18.9°C (66°F).Temperature
On the advent of December, Mecatlán's average high-temperature exhibits a minor adjustment to a still refreshing 18.9°C (66°F) from November's 18.8°C (65.8°F). In December, Mecatlán experiences an average nighttime temperature of 8.9°C (48°F).Humidity
In Mecatlán, the average relative humidity in December is 79%.Rainfall
The month with the least rainfall in Mecatlán is December, when the rain falls for 14.2 days and typically collects 23mm (0.91") of precipitation.Snowfall
In Mecatlán, snow does not fall in January through October and December.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year in Mecatlán.On the first day of December in Mecatlán, sunrise is at 6:50 am and sunset at 5:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:02 pm CST.
Sunshine
In Mecatlán, Mexico, the average sunshine in December is 7.1h.UV index
January, February, October through December, with an average maximum UV index of 4, are months with the lowest UV index in Mecatlán. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 4 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mecatlán, Mexico
- Average high temperature in December: 18.9°C
The warmest month (with the highest average high temperature) is April (24.7°C).
The month with the lowest average high temperature is January (17.7°C).
- Average low temperature in December: 8.9°C
The month with the highest average low temperature is June (13.9°C).
The coldest month (with the lowest average low temperature) is January (7.9°C).
Average pressure in December
Mecatlán, Mexico
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed in December
Mecatlán, Mexico
- Average wind speed in December: 6.2km/h
The windiest month (with the highest average wind speed) is April (7.6km/h).
The calmest month (with the lowest average wind speed) is September (5.8km/h).
Average humidity in December
Mecatlán, Mexico
- Average humidity in December: 79%
The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (69%).
Average rainfall in December
Mecatlán, Mexico
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (143mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in December
Mecatlán, Mexico
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is December (14.2 days).
Average snowfall in December
Mecatlán, Mexico
- Average snowfall in December: 0mm
The month with the highest snowfall is November (7mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Mecatlán, Mexico
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is November (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Mecatlán, Mexico
- Average daylight in December: 10h and 54min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in December
Mecatlán, Mexico
- Average sunshine days in December: 11.7 days
The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is September (3.8 days).
Average UV index in December
Mecatlán, Mexico
- Average UV index in December: 4
The months with the highest UV index are March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 4).
Average cloud cover in December
Mecatlán, Mexico
- Average cloud cover in December: 39
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in December
Mecatlán, Mexico
- Average visibility in December: 7km
The month with the highest visibility is April (9km).
The month with the lowest visibility is November (6km).
