December weather forecast
Astillero, Guatemala

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Weather in December

December, the first month of the winter in Astillero, is also a hot month, with an average temperature varying between 22.9°C (73.2°F) and 32.2°C (90°F).

Temperature

The introduction of December sees an average high-temperature of a still tropical 32.2°C (90°F), hardly deviating from November. Astillero usually reports an average low-temperature of 22.9°C (73.2°F) during the month of December.

Heat index

For December, the heat index is appraised at a fiery hot 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Astillero, the average relative humidity in December is 63%.

Rainfall

In Astillero, in December, it is raining for 4.2 days, with typically 4mm (0.16") of accumulated precipitation. In Astillero, during the entire year, the rain falls for 190.7 days and collects up to 718mm (28.27") of precipitation.

Daylight

The month with the shortest days in Astillero is December, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:09 and sunset at 17:31. On the last day of December, in Astillero, sunrise is at 06:24 and sunset at 17:44 CST.

Sunshine

December has the least sunshine of the year in Astillero, with an average of 7.7h of sunshine.

UV index

The months with the highest UV index in Astillero are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Astillero. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 7 suggests this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

How hot is it in Astillero in December?

In December, the average high-temperature and low-temperature in Astillero, Guatemala, are 32.2°C (90°F) and 22.9°C (73.2°F) respectively. In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 39°C (102.2°F).

What is the average humidity in December in Astillero?

The average relative humidity in December in Astillero is 63%.

How much does it rain in Astillero in December?

In Astillero, in December, it is raining for 4.2 days, with typically 4mm (0.16") of accumulated precipitation.

What is the month with the shortest days in Astillero?

The month with the shortest days in Astillero is December, with an average of 11h and 18min of daylight.

What is the average length of the day in December in Astillero?

In Astillero, the average day length in December is 11h and 20min.

What time are sunrise and sunset in December in Astillero?

In December, on the first day of the month, sunrise is at 06:09 and sunset at 17:31. On the last day of the month, sunrise is at 06:24 and sunset at 17:44 CST.

What is the month with the least sunshine in Astillero?

December has the least sunshine of the year, with an average of 7.7h of sunshine.

How many hours of sunshine does Astillero have in December?

In Astillero, Guatemala, the average sunshine duration in December is 7.7h.

When is the highest UV index in Astillero?

The months with the highest UV index in Astillero are January through December, with an average maximum UV index of 7.

What are the months with the lowest UV index in Astillero?

The months with the lowest UV index in Astillero are January through December, with an average maximum UV index of 7.

How high is the UV index in December in Astillero?

In December, the average daily maximum UV index in Astillero, Guatemala, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in December
Astillero, Guatemala

Average temperature in December - Astillero, Guatemala
  • Average high temperature in December: 32.2°C

The warmest month (with the highest average high temperature) is April (33.3°C).
The month with the lowest average high temperature is October (31.5°C).

  • Average low temperature in December: 22.9°C

The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.7°C).

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Average pressure in December
Astillero, Guatemala

Average pressure in December - Astillero, Guatemala
  • Average pressure in December: 1013.1mbar

The month with the highest atmospheric pressure is January (1013.7mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).

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Average wind speed in December
Astillero, Guatemala

Average wind speed in December - Astillero, Guatemala
  • Average wind speed in December: 7.9km/h

The windiest month (with the highest average wind speed) is March (9.2km/h).
The calmest months (with the lowest average wind speed) are June and October (7.5km/h).

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Average humidity in December
Astillero, Guatemala

Average humidity in December - Astillero, Guatemala
  • Average humidity in December: 63%

The months with the highest relative humidity are September and October (74%).
The month with the lowest relative humidity is March (60%).

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Average rainfall in December
Astillero, Guatemala

Average rainfall in December - Astillero, Guatemala
  • Average rainfall in December: 4mm

The wettest month (with the highest rainfall) is October (159mm).
The driest month (with the least rainfall) is January (3mm).

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Average rainfall days in December
Astillero, Guatemala

Average rainfall days in December - Astillero, Guatemala
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is September (26.2 days).
The month with the least rainy days is January (3.1 days).

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Average daylight in December /
Average sunshine in December
Astillero, Guatemala

Average daylight in December / Average sunshine in December - Astillero, Guatemala
  • Average daylight in December: 11h and 2min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in December: 7h and 4min

The months with the most sunshine are April and July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).

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Average sunshine days in December
Astillero, Guatemala

Average sunshine days in December - Astillero, Guatemala
  • Average sunshine days in December: 24.1 days

The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is September (2 days).

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Average UV index in December
Astillero, Guatemala

Average UV index in December - Astillero, Guatemala
  • Average UV index in December: 7

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

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Average cloud cover in December
Astillero, Guatemala

Average cloud cover in December - Astillero, Guatemala
  • Average cloud cover in December: 10

The month with the most cloud cover is June (Cloud cover 34).
The month with the least cloud cover is December (Cloud cover 10).

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Average visibility in December
Astillero, Guatemala

Average visibility in December - Astillero, Guatemala
  • 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).

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Astillero, Guatemala

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