December weather forecastLos Castillos, Mexico

December

Weather in December

December, the first month of the winter in Los Castillos, is still a pleasant month, with an average temperature varying between 21.6°C (70.9°F) and 8.5°C (47.3°F).

Temperature

The arrival of December denotes a barely perceptible change in the average high-temperatures to a still pleasant 21.6°C (70.9°F) from November's 22.5°C (72.5°F). Los Castillos records a consistent low-temperature average of 8.5°C (47.3°F) during December, indicating a significant difference from the daytime heat.

Humidity

In December, the average relative humidity in Los Castillos, Mexico, is 54%.

Rainfall

In Los Castillos, in December, during 3.6 rainfall days, 7mm (0.28") of precipitation is typically accumulated. Throughout the year, there are 128.3 rainfall days, and 441mm (17.36") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 6:03 pm. On the last day of December, sunrise is at 7:23 am and sunset at 6:16 pm CST.

Sunshine

January, March, May and December, with an average of 9.8h of sunshine, are months with the most sunshine.

UV index

In December, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 during December leads to these advisories:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

In Los Castillos, 21.6°C (70.9°F) is the average high-temperature and 8.5°C (47.3°F) is the average low-temperature during December. In June, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 29°C (84.2°F).

In Los Castillos, Mexico, the average relative humidity in December is 54%.

In Los Castillos, in December, it is raining for 3.6 days, with typically 7mm (0.28") of accumulated precipitation.

With an average of 10h and 54min of daylight, December has the shortest days of the year in Los Castillos.

The average day length in December in Los Castillos is 10h and 52min.

On the first day of December in Los Castillos, Mexico, sunrise is at 7:07 am and sunset at 6:03 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 6:16 pm CST.

January, March, May and December, with an average of 9.8h of sunshine, are months with the most sunshine in Los Castillos.

The average sunshine duration in December in Los Castillos is 9.8h.

The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Los Castillos, Mexico

  • Average high temperature in December: 21.6°C

The warmest month (with the highest average high temperature) is May (29.7°C).
The month with the lowest average high temperature is January (21.3°C).

  • Average low temperature in December: 8.5°C

The month with the highest average low temperature is June (16°C).
The coldest month (with the lowest average low temperature) is January (8°C).

Average pressure in December
Los Castillos, Mexico

  • Average pressure in December: 1017.6mbar

The month with the highest atmospheric pressure is January (1018.1mbar).
The month with the lowest atmospheric pressure is May (1013.4mbar).

Average wind speed in December
Los Castillos, Mexico

  • Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is April (10.1km/h).
The calmest month (with the lowest average wind speed) is July (7km/h).

Average humidity in December
Los Castillos, Mexico

  • Average humidity in December: 54%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (32%).

Average rainfall in December
Los Castillos, Mexico

  • Average rainfall in December: 7mm

The wettest month (with the highest rainfall) is July (102mm).
The driest month (with the least rainfall) is April (5mm).

Average rainfall days in December
Los Castillos, Mexico

  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is February (3.3 days).

Average daylight in December /
Average sunshine in December
Los Castillos, Mexico

  • Average daylight in December: 10h and 54min

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: 9h and 48min

The months with the most sunshine are January, March, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 9h and 6min).

Average sunshine days in December
Los Castillos, Mexico

  • Average sunshine days in December: 26.5 days

The months with the most sunshine days are January and December (26.5 days).
The month with the least sunshine days is July (5.7 days).

Average UV index in December
Los Castillos, Mexico

  • Average UV index in December: 5

The months with the highest UV index are April and May (UV index 6).
The months with the lowest UV index are January and November (UV index 4).

Average cloud cover in December
Los Castillos, Mexico

  • Average cloud cover in December: 12

The months with the most cloud cover are July and September (Cloud cover 34).
The month with the least cloud cover is March (Cloud cover 10).

Average visibility in December
Los Castillos, Mexico

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is September (8km).