tonga

Tonga Climate

Trek Zone

When Is the Best Time To Visit Tonga?

The answer to the question of what is the best month to visit Tonga depends on what you are interested in doing during your stay. Here you can see an overview of each month and its typical weather conditions.

Climate of Tonga

The islands of Tonga lie in a humid sub-equatorial climate zone, with the southern islands (Tongatapu group) having a drier climate and slightly higher temperatures. Thermometers here reach up to 28°C, and rainfall oscillates between 1,500 mm - 1,600 mm per year. The northern islands (Vavaʻu group) are cooler and wetter. The average temperature is around 25°C, and rains fluctuate between 2000 mm - 3000 mm. The water surrounding the Kingdom of Tonga keeps the temperature around 23°C - 27°C all year round.

In Tonga, we can distinguish between dry and rainy seasons.

The rainy season lasts from November to April, there is increased rainfall, it is hot and humid, and cyclones can occur.

The dry season from May to October brings slightly lower temperatures and occasional rains. It is then sunny and warm.

Nukuʻalofa

Friday 2 May
Update 2025-05-01 14:22 CET. Powered by Visual Crossing Weather.

rain
80°F
Humidity
83%
Cloud cover
5%
Wind speed
10.7 mph
Chance of rain
45%
Nukuʻalofa

Saturday 3 May
Update 2025-05-01 14:22 CET. Powered by Visual Crossing Weather.

clear-day
80°F
Humidity
78%
Cloud cover
13%
Wind speed
9.6 mph
Chance of rain
39%
Nukuʻalofa

Sunday 4 May
Update 2025-05-01 14:22 CET. Powered by Visual Crossing Weather.

partly-cloudy-day
78°F
Humidity
77%
Cloud cover
48%
Wind speed
15.9 mph
Chance of rain
39%
Nukuʻalofa

Monday 5 May
Update 2025-05-01 14:22 CET. Powered by Visual Crossing Weather.

partly-cloudy-day
77°F
Humidity
71%
Cloud cover
53%
Wind speed
24.2 mph
Chance of rain
23%
Nukuʻalofa

Tuesday 6 May
Update 2025-05-01 14:22 CET. Powered by Visual Crossing Weather.

rain
77°F
Humidity
68%
Cloud cover
71%
Wind speed
28.4 mph
Chance of rain
45%

Climate and Average Weather in Tonga

General weather conditions each month by city.

  • Nukualofa
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sea
81°
Sea
81°
Sea
81°
Sea
81°
Sea
79°
Sea
77°
Sea
75°
Sea
73°
Sea
73°
Sea
75°
Sea
77°
Sea
79°
Rain
18 Days
Rain
17 Days
Rain
18 Days
Rain
13 Days
Rain
9 Days
Rain
5 Days
Rain
4 Days
Rain
3 Days
Rain
4 Days
Rain
4 Days
Rain
6 Days
Rain
12 Days
Day
13h
Day
13h
Day
12h
Day
12h
Day
11h
Day
11h
Day
11h
Day
11h
Day
12h
Day
13h
Day
13h
Day
13h
Sun
8h
Sun
8h
Sun
8h
Sun
7h
Sun
7h
Sun
6h
Sun
7h
Sun
7h
Sun
7h
Sun
7h
Sun
8h
Sun
9h
Average temperature (°F)
Average rainfall (in)
RAIN - Days with precipitation
DAY - Average length of day
SUN - Sunshine hours per day (cloudless weather)

Weather Map

Select month
January
February
March
April
May
June
July
August
September
October
November
December
Switch places
Nukualofa
Nukualofa
79 °F
4.25 in
79 °F

The icons next to the month name indicate the convenience of the date for visiting the selected area/territory/ country. They are only a suggestion and should not be used as the final criterion for selecting your travel date. The season is defined as the time period with the weather favorable for sightseeing (or sunbathing - small island countries) for the average tourist. For countries with a large geographical range, the most touristic places were included.

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