December weather forecastLima, Peru

December
Weather in December
December marks the return of summer to Lima with the highest average temperature of 23.1°C (73.6°F). Increased humidity of 79% adds a touch of warmth to the city's climate. Daylight stretches out over the month, peaking at 12.8h, making December one of the brightest months. The wind conditions remain mild to moderate, ensuring that the pleasant weather is not disturbed. Thus, December brings in a warm, sunny, and joyous aura to Lima, ending the year on a high note.Temperature
Lima sees the arrival of December with an average high-temperature of a warm 23.1°C (73.6°F), indicating a subtle variation from November. December nights register a minor temperature decline, steadying at a comfortable 18.5°C (65.3°F).Humidity
December is the most humid month in Lima, with an average relative humidity of 79%.Rainfall
In December, in Lima, the rain falls for 1.3 days. Throughout December, 1mm (0.04") of precipitation is accumulated. Throughout the year, there are 22.6 rainfall days, and 18mm (0.71") of precipitation is accumulated.Sea temperature
In Lima, Peru, in December, the average water temperature is 19.3°C (66.7°F).Note: In 19.3°C (66.7°F), swimming is not an enjoyable activity for most. As the temperature decreases from 21°C (69.8°F) to 15°C (59°F), it becomes harder to control breathing.
Daylight
The month with the longest days in Lima is December, with an average of 12h and 48min of daylight.On the first day of the month, sunrise is at 05:33 and sunset at 18:20. On the last day of December, sunrise is at 05:46 and sunset at 18:36 -05.
Sunshine
In December, the average sunshine in Lima, Peru, is 11.2h.UV index
January through April, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 6 in December translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lima, Peru
- Average high temperature in December: 23.1°C
The warmest month (with the highest average high temperature) is February (25.4°C).
The month with the lowest average high temperature is August (20°C).
- Average low temperature in December: 18.5°C
The month with the highest average low temperature is February (21.4°C).
The coldest month (with the lowest average low temperature) is August (14.9°C).
Average pressure in December
Lima, Peru
- Average pressure in December: 1014.4mbar
The month with the highest atmospheric pressure is August (1016.4mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in December
Lima, Peru
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is September (13.1km/h).
The calmest month (with the lowest average wind speed) is February (10.4km/h).
Average humidity in December
Lima, Peru
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in December
Lima, Peru
- Average rainfall in December: 1mm
The wettest month (with the highest rainfall) is February (4mm).
The driest month (with the least rainfall) is May (0mm).
Average rainfall days in December
Lima, Peru
- Average rainfall days in December: 1.3 days
The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is November (0.2 days).
Average sea temperature in December
Lima, Peru
- Average sea temperature in December: 19.3°C
The best month for swimming (with the highest average sea temperature) is March (20.9°C).
The coldest month (with the lowest average sea temperature) is September (15.8°C).
Average daylight in December /
Average sunshine in December
Lima, 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 0min).
The month with the least sunshine is June (Average sunshine: 7h and 24min).
Average sunshine days in December
Lima, Peru
- Average sunshine days in December: 29 days
The months with the most sunshine days are August and October (30 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in December
Lima, Peru
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August, September and October (UV index 5).
Average cloud cover in December
Lima, Peru
- Average cloud cover in December: 29
The month with the most cloud cover is January (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Lima, Peru
- 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).








