December weather forecastLamas, Peru

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Lamas, Peru, with an average temperature fluctuating between 20°C (68°F) and 29.7°C (85.5°F).

Temperature

December brings a marginal elevation to a warm 29.7°C (85.5°F) from November's 30.8°C (87.4°F) in Lamas's average high-temperatures. An average minimum temperature of 20°C (68°F) is recorded during the month of December.

Heat index

In December, the heat index is calculated to be a very hot 36°C (96.8°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in December is 78%.

Rainfall

In December, in Lamas, the rain falls for 22.2 days. Throughout December, 92mm (3.62") of precipitation is accumulated. In Lamas, during the entire year, the rain falls for 246.6 days and collects up to 1162mm (45.75") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:41 and sunset at 18:09. On the last day of December, sunrise is at 05:54 and sunset at 18:24 -05.

Sunshine

The average sunshine in December is 9.1h.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 in December translates into these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

In Lamas, in December, the average high-temperature is 29.7°C (85.5°F), and the average low-temperature is 20°C (68°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in December is calculated to be 36°C (96.8°F).

In December, the average relative humidity is 78%.

In December, the rain falls for 22.2 days. Throughout December, 92mm (3.62") of precipitation is accumulated.

With an average of 12h and 30min of daylight, December has the longest days of the year.

In December, the average day length is 12h and 29min.

In December, on the first day of the month, sunrise is at 05:41 and sunset at 18:09. On the last day of the month, sunrise is at 05:54 and sunset at 18:24 -05.

In Lamas, the average sunshine duration in December is 9.1h.

The months with the highest UV index are January through December, with an average maximum UV index of 6.

January through December, with an average maximum UV index of 6, are months with the lowest UV index.

In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lamas, Peru

  • Average high temperature in December: 29.7°C

The warmest month (with the highest average high temperature) is September (31.6°C).
The month with the lowest average high temperature is February (28.9°C).

  • Average low temperature in December: 20°C

The month with the highest average low temperature is November (20.3°C).
The coldest month (with the lowest average low temperature) is July (18°C).

Average pressure in December
Lamas, Peru

  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is July (1015mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in December
Lamas, Peru

  • Average wind speed in December: 4.7km/h

The windiest month (with the highest average wind speed) is December (4.7km/h).
The calmest month (with the lowest average wind speed) is May (3.7km/h).

Average humidity in December
Lamas, Peru

  • Average humidity in December: 78%

The months with the highest relative humidity are February, March and April (82%).
The month with the lowest relative humidity is September (69%).

Average rainfall in December
Lamas, Peru

  • Average rainfall in December: 92mm

The wettest month (with the highest rainfall) is March (136mm).
The driest month (with the least rainfall) is August (62mm).

Average rainfall days in December
Lamas, Peru

  • Average rainfall days in December: 22.2 days

The month with the highest number of rainy days is March (25.3 days).
The month with the least rainy days is August (15.1 days).

Average daylight in December /
Average sunshine in December
Lamas, Peru

  • Average daylight in December: 12h and 30min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in December: 9h and 6min

The month with the most sunshine is September (Average sunshine: 9h and 54min).
The month with the least sunshine is May (Average sunshine: 6h and 18min).

Average sunshine days in December
Lamas, Peru

  • Average sunshine days in December: 7.1 days

The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is February (3.6 days).

Average UV index in December
Lamas, Peru

  • Average UV index in December: 6

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

Average cloud cover in December
Lamas, Peru

  • Average cloud cover in December: 52

The month with the most cloud cover is March (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in December
Lamas, Peru

  • Average visibility in December: 8km

The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January, February, March, April, May and June (7km).