What’s the climate like in Tonga?
The current climate of Tonga features average monthly temperatures ranging from highs of 30°C during the day to lows of 25°C. The average yearly temperature is around 28°C. At night, temperatures in the colder months average around 19°C and in the warmer months around 24°C.
The highest temperature recorded in Tonga in recent years was 56°C in January 2014. The lowest daytime temperature recorded was 19°C in July 2014.
On average, Tonga receives 2190 mm of precipitation each year. For comparison, UK gets 701 mm of precipitation annually.
The hurricane season in Tonga runs from November to April.
The climate of Tonga is based on weather data from Nuku‘alofa. Other locations might have different weather. You can check out all destinations in Tonga for a full picture of the climate.
Best time to visit Tonga?
The best time to visit Tonga for pleasant to warm weather is April through December. There might be some rain during this period, but the temperatures are just right for exploring Tonga.
Climate Table of Tonga
The climate table of Tonga shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 30 | 30 | 30 | 29 | 27 | 26 | 25 | 25 | 26 | 27 | 28 | 29 |
| Temp. min (°C) | 25 | 25 | 24 | 23 | 22 | 21 | 20 | 20 | 20 | 21 | 22 | 23 |
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| Precipitation (mm) | 256 | 322 | 311 | 247 | 160 | 144 | 119 | 138 | 101 | 114 | 122 | 156 |
| UV Index | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 28°C
- Highest temperature: 30°C in January, February and March
- Lowest temperature: 25°C in July and August
- Precipitation: 2190 mm per year, averaging 183 mm per month
- Driest months: 101 mm in September, 114 mm in October and 119 mm in July
- Wettest months: 322 mm in February, 311 mm in March and 256 mm in January
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Table of Contents
Average Temperature per Month in Tonga
This graph shows the average maximum temperatures per month in Tonga. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Tonga
This graph shows how much precipitation Tonga gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Tonga
This graph shows the average UV index per month in Tonga. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Tonga
This graph shows the average yearly temperature in Tonga. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Tonga
This chart shows the total yearly precipitation in Tonga over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Tonga
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Average Weather in Tonga by Month
Click on a month below to see detailed weather info for Tonga. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
