December weather forecastMiahuatlan, Mexico

December

Weather in December

December, the first month of the winter in Miahuatlan, is also a moderately hot month, with an average temperature varying between 20.6°C (69.1°F) and 27.6°C (81.7°F).

Temperature

With December's arrival, Miahuatlan's weather records an average high-temperature of a still warm 27.6°C (81.7°F), marking little difference from November's 28.1°C (82.6°F). During the December nights, an average temperature of 20.6°C (69.1°F) is observed.

Heat index

For December, the heat index is calculated to be a tropical 30°C (86°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. 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. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in December is 68%.

Rainfall

In December, in Miahuatlan, the rain falls for 4.8 days. Throughout December, 6mm (0.24") of precipitation is accumulated. Throughout the year, there are 208.9 rainfall days, and 1221mm (48.07") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 12min of daylight.
On the first day of the month, sunrise is at 6:38 am and sunset at 5:52 pm. On the last day of December, sunrise is at 6:54 am and sunset at 6:05 pm CST.

Sunshine

In Miahuatlan, Mexico, the average sunshine in December is 8.2h.

UV index

The months with the lowest UV index in Miahuatlan are January through March, May, June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures in Miahuatlan, Mexico, vary between a high-temperature of 27.6°C (81.7°F) and a low-temperature of 20.6°C (69.1°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 30°C (86°F).

The average relative humidity in December is 68%.

In Miahuatlan, Mexico, during December, the rain falls for 4.8 days and regularly aggregates up to 6mm (0.24") of precipitation.

With an average of 11h and 12min of daylight, December has the shortest days of the year.

In December, the average day length in Miahuatlan, Mexico, is 11h and 11min.

On the first day of December, sunrise is at 6:38 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:05 pm CST.

In December, the average sunshine duration is 8.2h.

The months with the lowest UV index are January through March, May, June, August through December, with an average maximum UV index of 6.

In Miahuatlan, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.1°C

27.6°C

27.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.6km/h

8.7km/h

9.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

13.4

23.1

24.8

Average UV index

Average cloud cover

14%

Average visibility

10km

Average temperature in December
Miahuatlan, Mexico

Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is April (29.6°C).
The month with the lowest average high temperature is September (26.9°C).

Average low temperature in December: 20.6°C

The month with the highest average low temperature is May (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.4°C).

Average pressure in December
Miahuatlan, Mexico

Average pressure in December: 1013.6mbar

The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is May (1011.3mbar).

Average wind speed in December
Miahuatlan, Mexico

Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is April (9.3km/h).
The calmest month (with the lowest average wind speed) is October (7.3km/h).

Average humidity in December
Miahuatlan, Mexico

Average humidity in December: 68%

The month with the highest relative humidity is September (80%).
The months with the lowest relative humidity are January and March (64%).

Average rainfall in December
Miahuatlan, Mexico

Average rainfall in December: 6mm

The wettest month (with the highest rainfall) is September (254mm).
The driest month (with the least rainfall) is January (4mm).

Average rainfall days in December
Miahuatlan, Mexico

Average rainfall days in December: 4.8 days

The month with the highest number of rainy days is August (30.3 days).
The month with the least rainy days is February (3.4 days).

Average daylight in December /
Average sunshine in December
Miahuatlan, Mexico

Average daylight in December: 11h and 12min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

Average sunshine in December: 8h and 12min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).

Average sunshine days in December
Miahuatlan, Mexico

Average sunshine days in December: 23.1 days

The month with the most sunshine days is January (24.8 days).
The months with the least sunshine days are August and September (0.1 days).

Average UV index in December
Miahuatlan, Mexico

Average UV index in December: 6

The months with the highest UV index are April and July (UV index 7).
The months with the lowest UV index are January, February, March, May, June, August, September, October, November and December (UV index 6).

Average cloud cover in December
Miahuatlan, Mexico

Average cloud cover in December: 9

The months with the most cloud cover are June and September (Cloud cover 38).
The month with the least cloud cover is February (Cloud cover 8).

Average visibility in December
Miahuatlan, Mexico

Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).