Average temperatures, rainfall, sunshine and the best places to visit in Tonga in January.
Are you planning a trip a to Tonga in January and wondering what kind of weather to expect? This page has all the details you need.
January in Tonga generally has warm temperatures, with heavy precipitation.
For a closer look at conditions across Tonga, refer to the map below.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Tonga.
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What is the weather like in January for some of the most popular destinations in Tonga?
In January Nuku‘alofa generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
Max temperatureMaxMin temperatureMin
Monthly rainfallRainMonthly rainy daysRainy
Weather conditionsScoreIn January Neiafu generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
Max temperatureMaxMin temperatureMinMonthly rainfallRainMonthly rainy daysRainyWeather conditionsScoreIn January Utungake generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
Max temperatureMaxMin temperatureMinMonthly rainfallRainMonthly rainy daysRainyWeather conditionsScoreIn January Lotofoa generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
Max temperatureMaxMin temperatureMinMonthly rainfallRainMonthly rainy daysRainyWeather conditionsScoreIn January Kanokupolu generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
Max temperatureMaxMin temperatureMinMonthly rainfallRainMonthly rainy daysRainyWeather conditionsScoreIs your destination not in the list? Have a look at all destinations in Tonga.
Notable January records observed across cities in Tonga in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.
Day & night temperatures, rainfall and average weather in Tonga in January.
| City | Weather | Day temp | Night temp | Rainfall |
|---|---|---|---|---|
| Nuku‘alofa |
|
28°C (82°F) | 25°C (77°F) | 212 mm (8.3 in) |
| Neiafu |
|
29°C (84°F) | 26°C (79°F) | 254 mm (10 in) |
| Utungake |
|
29°C (84°F) | 26°C (79°F) | 254 mm (10 in) |
| Lotofoa |
|
28°C (82°F) | 26°C (79°F) | 235 mm (9.3 in) |
| Kanokupolu |
|
28°C (82°F) | 25°C (77°F) | 214 mm (8.4 in) |
| Uoleva Island |
|
28°C (82°F) | 26°C (79°F) | 230 mm (9.1 in) |
Tonga typically experiences unpleasant weather in January, part of the season. Daytime highs in Nuku‘alofa average around 28°C (82°F), and temperatures drop to about 25°C (77°F) at night.
In Nuku‘alofa, the average daytime high in January is 28°C (82°F), while nighttime temperatures drop to around 25°C (77°F).
Rainfall in Tonga peaks during January. Nuku‘alofa averages roughly 212 mm (8.3 in), so frequent and sometimes heavy showers are the norm.
In our view, January might not be the best time to travel to Tonga with often unpleasant weather in Nuku‘alofa.
On average, the best time to visit Tonga is in April, May, June, July, August, September, October, November and December with generally pleasant weather in Nuku‘alofa. On the other hand, the weather in January, February and March tend to be unpleasant.
Drill down to January weather for any region in Tonga.
Pick a city to see its January weather averages.
We have much more information about the climate in Tonga.
Weather and climate has detailed information for every country in the world. Are you going to Tonga? Get detailed historical weather averages for many cities in Tonga.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
Need travel inspiration? Check out our bucket list articles and be inspired.
