What’s the climate like in Tonga?
The current climate in Tonga features temperatures ranging from a high of 30°C to a low of 25°C throughout the year. 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, New York gets 1142 mm of precipitation annually.
The hurricane season in Tonga runs from November to April.
The climate in Tonga is based on weather data from Nuku‘alofa. Other spots might have different weather. You can check out all destinations in Tonga to get the full picture of the climate.
Best time to visit Tonga?
The best time to visit Tonga for mild to warm weather is April up to December. You might get some rain, but the temperatures are just right to explore Tonga.
Climate Table of Tonga
The climate table of Tonga shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Precipitation |  |
|
|
|
|
|
|
|
|
|
|
|
| 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
Plan your next vacation
Don’t miss the best vacation deals for Tonga and see what our partners have for you.
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 rainfall Tonga gets on average per month. Rainfall 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 rainfall is measured in millimeters, and the average is calculated based on the recorded rainfall 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 millimeters, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Tonga
Have you been to Tonga?
Share your weather experiences in Tonga.
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.
