December weather forecastMapumai, Cook Islands
December
Weather in December
December sees a considerable jump in rainfall levels compared to previous months, combined with marginally higher temperatures. The temperature ranges from 26.5°C (79.7°F) to 25.6°C (78.1°F), reviving the island's warmth. Despite the increase in rainfall, the sunshine hours remain admirable, allowing for outdoor activities on this beautiful island. The increased precipitation in December contributes to the lush greenery of Mapumai, enhancing its appeal as a tropical paradise. The weather elements combine to present a unique perspective of Mapumai during December, marking a captivating end to the year.Temperature
Mapumai's shift into December is marked by a subtle change to a still warm 26.5°C (79.7°F) from November's 25.5°C (77.9°F) in temperature. December nights reveal a minor deviation from daytime highs, with a mean low-temperature of 25.6°C (78.1°F).Humidity
November and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Mapumai, Cook Islands, in December, it is raining for 22.9 days, with typically 153mm (6.02") of accumulated precipitation. In Mapumai, during the entire year, the rain falls for 211.1 days and collects up to 1084mm (42.68") of precipitation.Daylight
With an average of 13h and 18min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 05:44 and sunset at 18:59. On the last day of the month, sunrise is at 05:56 and sunset at 19:15 -10.
Sunshine
In Mapumai, Cook Islands, the average sunshine in December is 8.6h.UV index
January through March, May, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 7 transforms into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mapumai, Cook Islands
- Average high temperature in December: 26.5°C
The warmest month (with the highest average high temperature) is March (27.7°C).
The month with the lowest average high temperature is August (23.8°C).
- Average low temperature in December: 25.6°C
The month with the highest average low temperature is March (26.7°C).
The coldest month (with the lowest average low temperature) is August (22.8°C).
Average pressure in December
Mapumai, Cook Islands
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is September (1016.4mbar).
The month with the lowest atmospheric pressure is January (1010.6mbar).
Average wind speed in December
Mapumai, Cook Islands
- Average wind speed in December: 21.8km/h
The windiest month (with the highest average wind speed) is September (25.1km/h).
The calmest month (with the lowest average wind speed) is March (20.4km/h).
Average humidity in December
Mapumai, Cook Islands
- Average humidity in December: 79%
The months with the highest relative humidity are November and December (79%).
The months with the lowest relative humidity are June and August (76%).
Average rainfall in December
Mapumai, Cook Islands
- Average rainfall in December: 153mm
The wettest months (with the highest rainfall) are January and March (155mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in December
Mapumai, Cook Islands
- Average rainfall days in December: 22.9 days
The month with the highest number of rainy days is March (23.5 days).
The month with the least rainy days is August (10.3 days).
Average daylight in December /
Average sunshine in December
Mapumai, Cook Islands
- Average daylight in December: 13h and 18min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 8h and 36min
The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 42min).
Average sunshine days in December
Mapumai, Cook Islands
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is August (16.3 days).
The month with the least sunshine days is March (5.6 days).
Average UV index in December
Mapumai, Cook Islands
- Average UV index in December: 7
The months with the highest UV index are January, February, March, May, November and December (UV index 7).
The months with the lowest UV index are April, June, July, August, September and October (UV index 6).
Average cloud cover in December
Mapumai, Cook Islands
- Average cloud cover in December: 49
The months with the most cloud cover are January, October, November and December (Cloud cover 49).
The months with the least cloud cover are March, April and September (Cloud cover 46).
Average visibility in December
Mapumai, Cook Islands
- 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).





