December weather forecastChaclacayo, Peru
December
Weather in December
December, the first month of the summer in Chaclacayo, is still a comfortable month, with an average temperature varying between 19.8°C (67.6°F) and 15.1°C (59.2°F).Temperature
Chaclacayo, Peru, observes a minor difference in average high-temperatures between November's 19.7°C (67.5°F) and December's 19.8°C (67.6°F). Chaclacayo's nighttime temperature in December shows a minor descent, with a steady average of 15.1°C (59.2°F).Humidity
The average relative humidity in December is 77%.Rainfall
In Chaclacayo, during December, the rain falls for 20.2 days and regularly aggregates up to 34mm (1.34") of precipitation. In Chaclacayo, Peru, during the entire year, the rain falls for 145.2 days and collects up to 258mm (10.16") of precipitation.Daylight
With an average of 12h and 48min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:32 and sunset at 18:19. On the last day of December, in Chaclacayo, Peru, sunrise is at 05:45 and sunset at 18:34 -05.
Sunshine
In December, the average sunshine in Chaclacayo is 11.2h.UV index
January through December, with an average maximum UV index of 5, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 5 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chaclacayo, Peru
- Average high temperature in December: 19.8°C
The warmest months (with the highest average high temperature) are March and April (21°C).
The month with the lowest average high temperature is July (19.3°C).
- Average low temperature in December: 15.1°C
The months with the highest average low temperature are February and March (16.7°C).
The coldest months (with the lowest average low temperature) are July and August (12.7°C).
Average pressure in December
Chaclacayo, Peru
- Average pressure in December: 1014.7mbar
The month with the highest atmospheric pressure is August (1017mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).
Average wind speed in December
Chaclacayo, Peru
- Average wind speed in December: 8.9km/h
The windiest months (with the highest average wind speed) are January and November (9km/h).
The calmest month (with the lowest average wind speed) is June (7.5km/h).
Average humidity in December
Chaclacayo, Peru
- Average humidity in December: 77%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Chaclacayo, Peru
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is March (57mm).
The driest months (with the least rainfall) are June and July (1mm).
Average rainfall days in December
Chaclacayo, Peru
- Average rainfall days in December: 20.2 days
The month with the highest number of rainy days is March (27.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in December /
Average sunshine in December
Chaclacayo, Peru
- Average daylight in December: 12h and 48min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in December: 11h and 12min
The month with the most sunshine is October (Average sunshine: 12h and 6min).
The month with the least sunshine is May (Average sunshine: 7h and 36min).
Average sunshine days in December
Chaclacayo, Peru
- Average sunshine days in December: 5.9 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is March (1.3 days).
Average UV index in December
Chaclacayo, Peru
- Average UV index in December: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in December
Chaclacayo, Peru
- Average cloud cover in December: 27
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 3).
Average visibility in December
Chaclacayo, Peru
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





