December Weather in Vaini, Tonga

Last updated: August 31, 2025

In December, the average temperature in Vaini, Tonga is a pleasant 25°C (78°F), with minima dipping to 22°C (73°F) and maxima reaching 28°C (82°F). Be prepared for some rain, as 163 mm (6.4 in) of precipitation can be expected over 17 days. The weather tends to be quite humid, with an average humidity of 83%, making for a tropical atmosphere.

December Temperature in Vaini

In December in Vaini, the average temperature is 25°C (78°F). The maximum can reach 28°C (82°F) and the minimum can be as low as 22°C (73°F). This pleasant climate makes it an ideal destination for travelers seeking comfortable weather for outdoor activities.

December Weather in Vaini: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Vaini, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vaini, December typically has an average temperature of 25°C (78°F), with highs reaching up to 28°C (82°F) and lows dropping to around 22°C (73°F).

Data source: Temperature data for Vaini generated using information from the Copernicus Climate Change Service.

December Precipitation in Vaini

In Vaini in December, the precipitation amount is 163 mm (6.4 in) over the course of 17 days.

December Precipitation Trends in Vaini

The chart displays monthly precipitation patterns in Vaini, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Vaini, December typically receives around 163 mm (6.4 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Vaini

In Vaini in December, humidity is 83%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, damp embrace, making travel sticky and exhausting, as each movement can leave you drenched in sweat.

December Average Humidity in Vaini

This chart illustrates the average monthly humidity levels in Vaini, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Vaini is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vaini

In Vaini in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Vaini.

Maximum UV Index Levels in Vaini for December

The chart shows the monthly maximum UV Index (UVI) for Vaini in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Vaini typically reaches 16, which falls under the extreme exposure category.

Data source: Vaini December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Vaini Compares to Other Months

Weather in Vaini varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Vaini, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Vaini, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	235 mm (9.2 inches)	83%	extreme
February Weather	26°C (80°F)	294 mm (11.6 inches)	82%	extreme
March Weather	26°C (79°F)	300 mm (11.8 inches)	81%	extreme
April Weather	26°C (79°F)	238 mm (9.4 inches)	82%	extreme
May Weather	25°C (76°F)	196 mm (7.7 inches)	81%	very high
June Weather	24°C (75°F)	101 mm (4.0 inches)	74%	high
July Weather	23°C (73°F)	113 mm (4.4 inches)	76%	very high
August Weather	22°C (73°F)	83 mm (3.3 inches)	76%	very high
September Weather	23°C (73°F)	135 mm (5.3 inches)	78%	extreme
October Weather	23°C (74°F)	135 mm (5.3 inches)	81%	extreme
November Weather	24°C (76°F)	88 mm (3.5 inches)	82%	extreme
December Weather	25°C (78°F)	163 mm (6.4 inches)	83%	extreme