December weather forecastHaveluliku, Tonga
December
Weather in December
The end of the year in Haveluliku, Tonga brings another round of warmer temperatures, peaking at 25.6°C (78.1°F). As the year concludes, conditions begin shifting towards the classic summertime weather, with both rainfall and sea temperatures rising from November. Wind speeds progressively increase, offering more dynamic conditions for wind-surfing and kite-surfing. Despite this shift towards wetter conditions, daylight hours reach their annual peak. Therefore, December's weather hallmarks vibrant summer-like conditions, with ample rainfall, increasing temperatures, and abundant daylight.Temperature
Haveluliku registers an average high-temperature of a still moderately hot 25.6°C (78.1°F) with the arrival of December, showing minor deviation from the preceding month. Haveluliku's nighttime temperatures in December display a slight drop from daytime highs, averaging to a still warm 24.9°C (76.8°F).Humidity
In December, the average relative humidity in Haveluliku is 78%.Rainfall
In Haveluliku, in December, it is raining for 16.5 days, with typically 75mm (2.95") of accumulated precipitation. In Haveluliku, during the entire year, the rain falls for 193.9 days and collects up to 991mm (39.02") of precipitation.Sea temperature
In Haveluliku, Tonga, the average seawater temperature in December is 26.6°C (79.9°F).Note: Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods.
Daylight
With an average of 13h and 24min of daylight, December has the longest days of the year.On the first day of December in Haveluliku, sunrise is at 05:49 and sunset at 19:09. On the last day of the month, sunrise is at 06:01 and sunset at 19:25 +13.
Sunshine
In December, the average sunshine is 8.6h.UV index
April through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 6 in December suggests the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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 sea temperature in December
Haveluliku, Tonga
- Average sea temperature in December: 26.6°C
The best month for swimming (with the highest average sea temperature) is March (28.1°C).
The coldest months (with the lowest average sea temperature) are August and September (23.8°C).
Average daylight in December /
Average sunshine in December
Haveluliku, Tonga
- Average daylight in December: 13h and 24min
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 36min
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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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
Haveluliku, 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).





