December weather forecast
San Mateo Ixtatán, Guatemala

December

Weather in December

The first month of the winter, December, is still a comfortable month in San Mateo Ixtatán, Guatemala, with an average temperature ranging between min 6.5°C (43.7°F) and max 17.6°C (63.7°F).

Temperature

The transition into December reveals an average high-temperature of a still refreshing 17.6°C (63.7°F), mirroring a close resemblance to November. December brings an average low-temperature of 6.5°C (43.7°F) to San Mateo Ixtatán.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In December, the rain falls for 17.4 days. Throughout December, 29mm (1.14") of precipitation is accumulated. In San Mateo Ixtatán, during the entire year, the rain falls for 295.3 days and collects up to 2656mm (104.57") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 12min of daylight.
On the first day of December, sunrise is at 06:17 and sunset at 17:32. On the last day of the month, sunrise is at 06:33 and sunset at 17:45 CST.

Sunshine

The average sunshine in December is 7h.

UV index

The months with the highest UV index in San Mateo Ixtatán, Guatemala, are February through May, July, October and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 4 in December translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. 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.

Frequently asked questions

What is the average December temperature in San Mateo Ixtatán?
An average high-temperature, in December, in San Mateo Ixtatán, is 17.6°C (63.7°F) and the average low-temperature is 6.5°C (43.7°F).
What is the average humidity in December in San Mateo Ixtatán?
The average relative humidity in December is 83%.
How many days does it rain in December in San Mateo Ixtatán?
In San Mateo Ixtatán, Guatemala, in December, during 17.4 rainfall days, 29mm (1.14") of precipitation is typically accumulated.
What is the month with the shortest days in San Mateo Ixtatán?
The month with the shortest days in San Mateo Ixtatán is December, with an average of 11h and 12min of daylight.
How many hours of daylight does San Mateo Ixtatán have in December?
The average day length in December in San Mateo Ixtatán is 11h and 13min.
When are sunrise and sunset in December in San Mateo Ixtatán?
In December, on the first day of the month, sunrise is at 06:17 and sunset at 17:32. On the last day of the month, in San Mateo Ixtatán, Guatemala, sunrise is at 06:33 and sunset at 17:45 CST.
How many hours of sunshine does San Mateo Ixtatán have in December?
In December, the average sunshine duration in San Mateo Ixtatán, Guatemala, is 7h.
What is the month with the highest UV index in San Mateo Ixtatán?
The months with the highest UV index in San Mateo Ixtatán, Guatemala, are February through May, July, October and December, with an average maximum UV index of 4.
What is the UV index intensity in December in San Mateo Ixtatán?
In December, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
San Mateo Ixtatán, Guatemala
  • Average high temperature in December: 17.6°C

The warmest month (with the highest average high temperature) is April (21°C).
The month with the lowest average high temperature is September (16.7°C).

  • Average low temperature in December: 6.5°C

The month with the highest average low temperature is June (10.4°C).
The coldest month (with the lowest average low temperature) is January (6°C).

Average pressure in December
San Mateo Ixtatán, Guatemala
  • Average pressure in December: 1015.6mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is May (1013mbar).

Average wind speed in December
San Mateo Ixtatán, Guatemala
  • Average wind speed in December: 6km/h

The windiest month (with the highest average wind speed) is July (6.5km/h).
The calmest month (with the lowest average wind speed) is May (4.4km/h).

Average humidity in December
San Mateo Ixtatán, Guatemala
  • Average humidity in December: 83%

The month with the highest relative humidity is September (93%).
The months with the lowest relative humidity are March and April (77%).

Average rainfall in December
San Mateo Ixtatán, Guatemala
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is June (521mm).
The driest month (with the least rainfall) is February (24mm).

Average rainfall days in December
San Mateo Ixtatán, Guatemala
  • Average rainfall days in December: 17.4 days

The month with the highest number of rainy days is August (30 days).
The month with the least rainy days is February (16 days).

Average daylight in December /
Average sunshine in December
San Mateo Ixtatán, Guatemala
  • Average daylight in December: 11h and 1min

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: 7h and 0min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The months with the least sunshine are June and September (Average sunshine: 5h and 24min).

Average sunshine days in December
San Mateo Ixtatán, Guatemala
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is December (9.5 days).
The month with the least sunshine days is September (0.1 days).

Average UV index in December
San Mateo Ixtatán, Guatemala
  • Average UV index in December: 4

The months with the highest UV index are February, March, April, May, July, October and December (UV index 4).
The months with the lowest UV index are January, June, August, September and November (UV index 3).

Average cloud cover in December
San Mateo Ixtatán, Guatemala
  • Average cloud cover in December: 51

The months with the most cloud cover are June and September (Cloud cover 75).
The month with the least cloud cover is March (Cloud cover 41).

Average visibility in December
San Mateo Ixtatán, Guatemala
  • Average visibility in December: 6km

The month with the highest visibility is April (8km).
The months with the lowest visibility are September and October (5km).

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