Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the transition into December, Koumac notes an average high-temperature of a still warm 27.3°C (81.1°F), closely resembling November. The nighttime temperature in December experiences a minor dip, averaging a still warm 23.7°C (74.7°F).Heat index
In December, the average heat index is computed to be a hot 30°C (86°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In Koumac, the average relative humidity in December is 76%.Rainfall
In Koumac, in December, it is raining for 22.5 days, with typically 80mm (3.15") of accumulated precipitation. Throughout the year, there are 190.5 rainfall days, and 733mm (28.86") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 13h and 24min of daylight.On the first day of December in Koumac, sunrise is at 05:13 and sunset at 18:30. On the last day of the month, sunrise is at 05:25 and sunset at 18:46 +11.
Sunshine
In December, the average sunshine is 9.4h.UV index
The months with the lowest UV index in Koumac are April through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Deflect overexposure. Sun protection is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the temperature in December in Koumac?
What is the average humidity in December in Koumac?
How much does it rain in Koumac in December?
When are the longest days in Koumac?
How many hours of daylight does Koumac have in December?
When are sunrise and sunset in December in Koumac?
How long on average sun shines in December in Koumac?
What is the month with the lowest UV index in Koumac?
What is the UV index intensity in December in Koumac?
Average temperature in December
Koumac, New Caledonia
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is February (28.3°C).
The months with the lowest average high temperature are July and August (22.8°C).
- Average low temperature in December: 23.7°C
The month with the highest average low temperature is February (24.8°C).
The coldest month (with the lowest average low temperature) is August (18.9°C).
Average pressure in December
Koumac, New Caledonia
- Average pressure in December: 1010.4mbar
The month with the highest atmospheric pressure is August (1016.4mbar).
The month with the lowest atmospheric pressure is February (1007.6mbar).
Average wind speed in December
Koumac, New Caledonia
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is June (15.4km/h).
The calmest month (with the lowest average wind speed) is December (13.3km/h).
Average humidity in December
Koumac, New Caledonia
- Average humidity in December: 76%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are September, October and November (74%).
Average rainfall in December
Koumac, New Caledonia
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is February (146mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in December
Koumac, New Caledonia
- Average rainfall days in December: 22.5 days
The month with the highest number of rainy days is March (24.8 days).
The months with the least rainy days are August and September (8.2 days).
Average daylight in December /
Average sunshine in December
Koumac, New Caledonia
- Average daylight in December: 13h and 2min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 9h and 2min
The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in December
Koumac, New Caledonia
- Average sunshine days in December: 3.6 days
The month with the most sunshine days is July (19.7 days).
The month with the least sunshine days is March (2.5 days).
Average UV index in December
Koumac, New Caledonia
- Average UV index in December: 6
The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
Koumac, New Caledonia
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in December
Koumac, New Caledonia
- 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).
Koumac, New Caledonia
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