December weather forecast
Tauhunu, Cook Islands

Rounding out the year, December brings back some of Tauhunu's classic elements, with warmer conditions and appreciable rainfall at 141mm (5.55"). Winds moderately pick up to 19.3km/h (12mph), adding a refreshing contrast to the tropical air. The number of daylight hours reaches its peak, matching the start of the year. However, the volume of sunshine experiences a minor drop due to increased cloud cover. In conclusion, December’s weather in Tauhunu is a blend of rainfall, moderate winds, warmth, and ample daylight.

Temperature

December reports an average high-temperature of a still moderately hot 28.6°C (83.5°F), slightly varied from November's 28.5°C (83.3°F). Maintaining close parity with daytime warmth, the average nocturnal temperature in Tauhunu during December stays at a still moderately hot 27.7°C (81.9°F).

Heat index

December's average heat index is estimated at a hot 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

December is the least humid month, with an average relative humidity of 74%.

Rainfall

In Tauhunu, in December, it is raining for 24 days, with typically 141mm (5.55") of accumulated precipitation. In Tauhunu, Cook Islands, during the entire year, the rain falls for 280.1 days and collects up to 1598mm (62.91") of precipitation.

Sea temperature

The months with the warmest seawater are January through June, October through December, with an average sea temperature of 29°C (84.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

December has the longest days of the year, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 06:12 and sunset at 18:54. On the last day of December, in Tauhunu, sunrise is at 06:25 and sunset at 19:09 -10.

Sunshine

In December, the average sunshine is 8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Alert! UV radiation becomes sharper due to reflections from sand and water.