December weather forecast
Holonga, Tonga

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Weather in December

December marks the finale of the climatic symphony of Holonga. The slight pickup in rainfall to 139mm (5.47") and a subsequent increase in the total number of rainfall days continue the tropical narrative. The temperature chart shows a minor incline, imparting a warming effect. The year's final month ends the weather cycle with a relatively high wind speed of 24.5km/h (15.2mph) and the highest hours of daylight at 13.2, making December a unique blend of warmth and cool breezes. The closeness to the festive period makes December even more worth experiencing in the tropical paradise of Holonga.

Temperature

Holonga's shift from November to December is accompanied by an average high-temperature of a still warm 27.1°C (80.8°F), a slight deviation from 26.2°C (79.2°F). The nights of December in Holonga are characterized by an average low-temperature of 26.4°C (79.5°F), subtly descending from daytime highs.

Heat index

For December, the heat index is calculated to be a tropical 30°C (86°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In December, the average relative humidity in Holonga, Tonga, is 78%.

Rainfall

In Holonga, in December, during 22.2 rainfall days, 139mm (5.47") of precipitation is typically accumulated. Throughout the year, there are 227.2 rainfall days, and 1333mm (52.48") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 12min of daylight.
On the first day of December, sunrise is at 05:50 and sunset at 19:00. On the last day of the month, sunrise is at 06:02 and sunset at 19:16 +13.

Sunshine

December has the most sunshine of the year, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index in Holonga are January through April and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

What are December temperatures in Holonga?

The average high-temperature and low-temperature in Holonga during December are 27.1°C (80.8°F) and 26.4°C (79.5°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 30°C (86°F).

What is the average humidity in December in Holonga?

In Holonga, Tonga, the average relative humidity in December is 78%.

How many days does it rain in December in Holonga?

In Holonga, in December, during 22.2 rainfall days, 139mm (5.47") of precipitation is typically accumulated.

When are the longest days in Holonga?

The month with the longest days in Holonga, Tonga, is December, with an average of 13h and 12min of daylight.

How many hours of daylight does Holonga have in December?

In December, the average day length in Holonga is 13h and 14min.

When are sunrise and sunset in December in Holonga?

On the first day of December, sunrise is at 05:50 and sunset at 19:00. On the last day of the month, sunrise is at 06:02 and sunset at 19:16 +13.

What month has the most sunshine in Holonga?

December has the most sunshine of the year in Holonga, Tonga, with an average of 8.2h of sunshine.

How many hours of sunshine does Holonga have in December?

The average sunshine duration in December is 8.2h.

When is the highest UV index in Holonga?

January through April and December, with an average maximum UV index of 7, are months with the highest UV index in Holonga, Tonga.

What is the UV index reading in December in Holonga?

In Holonga, Tonga, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in December
Holonga, Tonga

Average temperature in December - Holonga, Tonga
  • Average high temperature in December: 27.1°C

The warmest month (with the highest average high temperature) is February (28.3°C).
The month with the lowest average high temperature is September (24.7°C).

  • Average low temperature in December: 26.4°C

The month with the highest average low temperature is February (27.3°C).
The coldest month (with the lowest average low temperature) is July (23.7°C).

Average pressure in December
Holonga, Tonga

Average pressure in December - Holonga, Tonga
  • Average pressure in December: 1009.8mbar

The months with the highest atmospheric pressure are August and September (1014.8mbar).
The month with the lowest atmospheric pressure is January (1007.8mbar).

Average wind speed in December
Holonga, Tonga

Average wind speed in December - Holonga, Tonga
  • Average wind speed in December: 24.5km/h

The windiest month (with the highest average wind speed) is June (27km/h).
The calmest month (with the lowest average wind speed) is March (20.2km/h).

Average humidity in December
Holonga, Tonga

Average humidity in December - Holonga, Tonga
  • Average humidity in December: 78%

The months with the highest relative humidity are September, October and November (79%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Holonga, Tonga

Average rainfall in December - Holonga, Tonga
  • Average rainfall in December: 139mm

The wettest month (with the highest rainfall) is January (275mm).
The driest month (with the least rainfall) is August (42mm).

Average rainfall days in December
Holonga, Tonga

Average rainfall days in December - Holonga, Tonga
  • Average rainfall days in December: 22.2 days

The months with the highest number of rainy days are February and March (24.3 days).
The month with the least rainy days is August (14.6 days).

Average daylight in December /
Average sunshine in December
Holonga, Tonga

Average daylight in December / Average sunshine in December - Holonga, Tonga
  • Average daylight in December: 13h and 1min

The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).

  • Average sunshine in December: 8h and 1min

The month with the most sunshine is December (Average sunshine: 8h and 12min).
The month with the least sunshine is September (Average sunshine: 6h and 36min).

Average sunshine days in December
Holonga, Tonga

Average sunshine days in December - Holonga, Tonga
  • Average sunshine days in December: 5.5 days

The month with the most sunshine days is August (11.8 days).
The month with the least sunshine days is February (2.3 days).

Average UV index in December
Holonga, Tonga

Average UV index in December - Holonga, Tonga
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).

Average cloud cover in December
Holonga, Tonga

Average cloud cover in December - Holonga, Tonga
  • Average cloud cover in December: 51

The month with the most cloud cover is October (Cloud cover 55).
The month with the least cloud cover is March (Cloud cover 46).

Average visibility in December
Holonga, Tonga

Average visibility in December - Holonga, Tonga
  • Average visibility in December: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).

Holonga, Tonga

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