December weather forecastAmatitlán, Guatemala
December
Weather in December
As the end of the year rolls in, Amatitlán's weather transitions fully into the dry season. The rainfall decreases significantly compared to November, resulting in a drier atmosphere. Sunshine hours decrease ever so slightly, but the hours of daylight stay relatively the same. Temperatures start to fall, bringing cooler and more comfortable weather. December experiences the least rainfall since the start of the dry season, observing only 9mm (0.35") of precipitation in this month.Temperature
December in Amatitlán registers an average high-temperature of a still agreeable 22.8°C (73°F), slightly varied from November's 22.6°C (72.7°F). Amatitlán reports a consistent average low-temperature of 12.4°C (54.3°F) throughout December nights.Humidity
In Amatitlán, the average relative humidity in December is 79%.Rainfall
In Amatitlán, in December, it is raining for 7.5 days, with typically 9mm (0.35") of accumulated precipitation. In Amatitlán, during the entire year, the rain falls for 231.3 days and collects up to 1656mm (65.2") of precipitation.Daylight
December has the shortest days of the year in Amatitlán, with an average of 11h and 18min of daylight.On the first day of the month, sunrise is at 06:11 and sunset at 17:31. On the last day of December, in Amatitlán, sunrise is at 06:27 and sunset at 17:44 CST.
Sunshine
In Amatitlán, the average sunshine in December is 7.5h.UV index
In Amatitlán, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the UV index of 5 transforms into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To guard against the harmful effects of the Sun, minimize exposure during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Amatitlán, Guatemala
- Average high temperature in December: 22.8°C
The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is October (22.5°C).
- Average low temperature in December: 12.4°C
The month with the highest average low temperature is May (16.5°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).
Average pressure in December
Amatitlán, Guatemala
- Average pressure in December: 1014.8mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).
Average wind speed in December
Amatitlán, Guatemala
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).
Average humidity in December
Amatitlán, Guatemala
- Average humidity in December: 79%
The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is March (69%).
Average rainfall in December
Amatitlán, Guatemala
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is May (285mm).
The driest month (with the least rainfall) is January (7mm).
Average rainfall days in December
Amatitlán, Guatemala
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is September (28.7 days).
The month with the least rainy days is January (6.7 days).
Average daylight in December /
Average sunshine in December
Amatitlán, Guatemala
- Average daylight in December: 11h and 18min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in December: 7h and 30min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 24min).
Average sunshine days in December
Amatitlán, Guatemala
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in December
Amatitlán, Guatemala
- Average UV index in December: 5
The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are August and October (UV index 4).
Average cloud cover in December
Amatitlán, Guatemala
- Average cloud cover in December: 28
The months with the most cloud cover are June and September (Cloud cover 59).
The months with the least cloud cover are January, February and March (Cloud cover 26).
Average visibility in December
Amatitlán, Guatemala
- Average visibility in December: 9km
The month with the highest visibility is March (10km).
The month with the lowest visibility is September (6km).
