December weather forecast and climate
Bairiki, Kiribati

The first month of the winter, December, is also a moderately hot month in Bairiki, Kiribati, with average temperature ranging between max 28.6°C (83.5°F) and min 27.4°C (81.3°F).

Temperature

In Bairiki, Kiribati, the average high-temperature is practically the same as in November - a still moderately hot 28.6°C (83.5°F). In Bairiki, Kiribati, the average low-temperature is 27.4°C (81.3°F).

Heat index

The average heat index in December is appraised at a hot 33.1°C (91.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like pregnancy, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Bairiki, the average relative humidity is 77%.

Rainfall

In December, in Bairiki, the rain falls for 15.9 days. Throughout December, 126mm (4.96") of precipitation is accumulated. In Bairiki, during the entire year, the rain falls for 192.9 days and collects up to 1106mm (43.54") of precipitation.

Sea temperature

The month with the coldest seawater in Bairiki is December, with an average sea temperature of 28.7°C (83.7°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

December has the shortest days of the year in Bairiki, with an average of 12h of daylight.

Sunshine

The average sunshine in Bairiki is 7.8h.

UV index

Months with the highest UV index in Bairiki are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bairiki. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.