Lima
Peru
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Lima, Peru

December, the first month of the summer, in Lima, is a warm month, with average temperature ranging between min 18.5°C (65.3°F) and max 23.1°C (73.6°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a warm 23.1°C (73.6°F). In December, in Lima, the average low-temperature is 18.5°C (65.3°F).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Lima, Peru, during December, the rain falls for 1.3 days and regularly aggregates up to 1mm (0.04") of precipitation. In Lima, Peru, during the entire year, the rain falls for 22.6 days and collects up to 18mm (0.71") of precipitation.

Sea temperature

In December, the average sea temperature in Lima, Peru, is 19.3°C (66.7°F).
Note: For swimming, a surface water temperature of 19.3°C (66.7°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

With an average of 12.8h of daylight, December has the longest days of the year.

Sunshine

In Lima, the average sunshine 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 unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Lima?

In December, in Lima, the average high-temperature is 23.1°C (73.6°F), and the average low-temperature is 18.5°C (65.3°F).

What is the most humid month in Lima?

The most humid month in Lima, Peru, is December, with an average relative humidity of 79%.

What is the average humidity in December in Lima?

In December, the average relative humidity in Lima is 79%.

How many days does it rain in December in Lima?

In Lima, during December, the rain falls for 1.3 days and regularly aggregates up to 1mm (0.04") of precipitation.

What is the sea temperature in December in Lima?

In Lima, Peru, the average seawater temperature in December is 19.3°C (66.7°F). For most, swimming in 19.3°C (66.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days in Lima?

December has the longest days of the year in Lima, Peru, with an average of 12.8h of daylight.

How many hours of daylight does Lima have in December?

In Lima, Peru, the average length of the day in December is 12.8h.

How many hours of sunshine does Lima have in December?

In December, the average sunshine in Lima is 11.2h.

What are the months with the highest UV index in Lima?

Months with the highest UV index in Lima, Peru, are January through April, November and December, with an average maximum UV index of 6.

How high is the UV index in December in Lima?

The average daily maximum UV index in December in Lima, Peru, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.
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 humidity in December - Lima, Peru
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
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: 12.8h

The month with the longest days is December (Average daylight: 12.8h).
The month with the shortest days is June (Average daylight: 11.4h).

  • Average sunshine in December: 11.2h

The month with the most sunshine is October (Average sunshine: 12h).
The month with the least sunshine is June (Average sunshine: 7.4h).

Average UV index in December - Lima, Peru
  • Average UV index in December: 6

Months with the highest UV index are January, February, March, April, November and December (UV index 6).
Months with the lowest UV index are May, June, July, August, September and October (UV index 5).