December weather forecast
Vaini, Tonga

December

Weather in December

Closing the year, December in Vaini witnesses a sight of delightful weather. At the peak value of the year, a maximum wind speed of 25.8km/h (16mph) is recorded. With temperature ranges remaining reasonably stable with a moderate visibility of 10km (6.2mi), the year winds down reflecting Vaini’s signature tropical weather. The weather remains inviting and consistent, offering a picturesque view of the city against the backdrop of its unique island splendor.

Temperature

Vaini's average high-temperature in December is a still moderately hot 25.6°C (78.1°F), indicating a subtle variation from November. Nights in December showcase an average temperature of 24.9°C (76.8°F), slightly cooler than the daytime.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Vaini, in December, it is raining for 16.5 days, with typically 75mm (2.95") of accumulated precipitation. Throughout the year, there are 193.9 rainfall days, and 991mm (39.02") of precipitation is accumulated.

Daylight

December has the longest days of the year in Vaini, Tonga, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 19:10. On the last day of December, in Vaini, sunrise is at 06:02 and sunset at 19:26 +13.

Sunshine

In Vaini, the average sunshine in December is 8.6h.

UV index

April through December, with an average maximum UV index of 6, are months with the lowest UV index in Vaini. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Fend off overexposure. Sun protection is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun 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 Vaini?
In December, the average high-temperature and low-temperature in Vaini, Tonga, are 25.6°C (78.1°F) and 24.9°C (76.8°F) respectively. In March, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 30°C (86°F).
What is the average humidity in December in Vaini?
The average relative humidity in December in Vaini, Tonga, is 78%.
How much does it rain in Vaini in December?
In Vaini, Tonga, in December, it is raining for 16.5 days, with typically 75mm (2.95") of accumulated precipitation.
When are the longest days in Vaini?
The month with the longest days is December, with an average of 13h and 24min of daylight.
How many hours of daylight does Vaini have in December?
In Vaini, Tonga, the average day length in December is 13h and 24min.
When are sunrise and sunset in December in Vaini?
In December, on the first day of the month, sunrise is at 05:50 and sunset at 19:10. On the last day of the month, sunrise is at 06:02 and sunset at 19:26 +13.
How long on average sun shines in December in Vaini?
In Vaini, Tonga, the average sunshine duration in December is 8.6h.
What is the month with the lowest UV index in Vaini?
April through December, with an average maximum UV index of 6, are months with the lowest UV index in Vaini, Tonga.
What is the UV index intensity in December in Vaini?
In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Vaini, Tonga
Average temperature in December
Vaini, Tonga
  • Average high temperature in December: 25.6°C

The warmest month (with the highest average high temperature) is February (27.5°C).
The month with the lowest average high temperature is September (22.9°C).

  • Average low temperature in December: 24.9°C

The month with the highest average low temperature is February (26.7°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).

Average pressure in December - Vaini, Tonga
Average pressure in December
Vaini, Tonga
  • Average pressure in December: 1011mbar

The months with the highest atmospheric pressure are August and September (1016.2mbar).
The months with the lowest atmospheric pressure are January and February (1008.6mbar).

Average wind speed in December - Vaini, Tonga
Average wind speed in December
Vaini, Tonga
  • Average wind speed in December: 24.9km/h

The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is January (23.3km/h).

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

The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in December - Vaini, Tonga
Average rainfall in December
Vaini, Tonga
  • Average rainfall in December: 75mm

The wettest month (with the highest rainfall) is February (163mm).
The driest month (with the least rainfall) is October (36mm).

Average rainfall days in December - Vaini, Tonga
Average rainfall days in December
Vaini, Tonga
  • Average rainfall days in December: 16.5 days

The month with the highest number of rainy days is February (22.7 days).
The month with the least rainy days is October (12.9 days).

Average daylight in December / Average sunshine in December - Vaini, Tonga
Average daylight in December /
Average sunshine in December
Vaini, Tonga
  • 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: 8h and 4min

The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 48min).

Average sunshine days in December - Vaini, Tonga
Average sunshine days in December
Vaini, Tonga
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (3.8 days).

Average UV index in December - Vaini, Tonga
Average UV index in December
Vaini, Tonga
  • 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 - Vaini, Tonga
Average cloud cover in December
Vaini, Tonga
  • Average cloud cover in December: 49

The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 46).

Average visibility in December - Vaini, Tonga
Average visibility in December
Vaini, Tonga
  • 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).

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