Tonga in august: average Weather, Temperature and Climate, Where to go?
Weather in Tonga in august 2025
Below, you have access to the weather forecast for august for most popular cities in Tonga. These datas are statistics for august from weather reports for many years. The percentage indicates the probability of having the weather indicated.
Average weather in august in Nukuʻalofa
good weather UV index: 6
Weather at 6am
74°F
Moderate rain at times
34% of time
27%
22%
14%
Weather at 12pm
74°F
Partly Cloudy
32% of time
24%
20%
19%
Weather at 6pm
74°F
Partly Cloudy
42% of time
19%
18%
17%
Weather at 3am
74°F
34%
27%
22%
15%
Where to go in Tonga in august?
Where to go in Tonga in august: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in Tonga in august when it comes to the weather?
Remember:
The climate in Tonga in august is good across the board.
You are lucky: It is not perfect, however, the weather in Tonga in august is, on average, good in Haʻapai islands (Lifuka and Foa), Tongatapu Island, Nukuʻalofa and Vavaʻu island. I allows to savor tour in these areas. And even why not take a little time to take a nap at the pool under the sun!
If you do not go the sun and blue sky, but, for example to go sightseeing around, the city of Niuafoʻou (Niuas islands) have a just ok weather for it in august.
Climate in Tonga in august
Climate in Nukuʻalofa in august
In august, maximum temperature is 74°F and minimum temperature is 72°F (for an average temperature of 74°F). The climate is quite good in this city in this month. With 4.8in over 5 days, you will experience some showers for your vacations. But this is reasonably and it is only of temporary showers.
With a good weather, august is a good month to go in that area in Tonga.
| August | |||
| Average temperature | 74°F | ||
| Highest temperature | 74°F | ||
| Lowest temperature | 72°F | ||
| Sea temperature | 76°F | ||
| Rainfall | 4.8in | ||
| Number of days with rainfall | 5 day(s) (15%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 51% | ||
| Length of day | 11:23 | ||
| Our opinion at whereandwhen.net | good |
Climate in Haʻapai islands (Lifuka / Foa) in august
In august, the mean temperature in Haʻapai islands (Lifuka and Foa) is 76°F (maximum temperature is 76°F and minimum temperature is 74°F). The climate is pleasant in that area in this month. With 4.6in over 4 days, rain may occur throughout your holidays. But this is reasonably and you will not be too bothered by it.
With a good climate, august is an advisable month to go there.
| August | |||
| Average temperature | 76°F | ||
| Highest temperature | 76°F | ||
| Lowest temperature | 74°F | ||
| Sea temperature | 76°F | ||
| Rainfall | 4.6in | ||
| Number of days with rainfall | 4 day(s) (13%) | ||
| Humidity | 79% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 53% | ||
| Length of day | 11:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Niuafoʻou (Niuas islands) in august
In the month of august, the mean temperature in Niuafoʻou (Niuas islands) is 81°F (maximum temperature is 81°F and minimum temperature is 79°F). The climate is good here in the month of august. With 6.7in over 9 days, rainfall can happen during your holidays. But this is reasonably and you will not be too bothered by it.
With proper weather, august is okay (but not good time) for traveling in this city in Tonga.
| August | |||
| Average temperature | 81°F | ||
| Highest temperature | 81°F | ||
| Lowest temperature | 79°F | ||
| Rainfall | 6.7in | ||
| Number of days with rainfall | 9 day(s) (29%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 55% | ||
| Length of day | 11:34 | ||
| Our opinion at whereandwhen.net | good |
Climate in Tongatapu Island in august
In august, the mean temperature in Tongatapu Island is 74°F (maximum temperature is 74°F and minimum temperature is 72°F). The climate is quite enjoyable in that area in this month. With 4.8in over 5 days, rainfall can happen for your holidays. But this is rather reasonably and it is only of temporary showers.
With a good climate, august is a recommended month to go in this locality.
| August | |||
| Average temperature | 74°F | ||
| Highest temperature | 74°F | ||
| Lowest temperature | 72°F | ||
| Sea temperature | 76°F | ||
| Rainfall | 4.8in | ||
| Number of days with rainfall | 5 day(s) (15%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 51% | ||
| Length of day | 11:23 | ||
| Our opinion at whereandwhen.net | good |
Climate in Vavaʻu island in august
In the month of august, maximum temperature is 77°F and minimum temperature is 76°F (for an average temperature of 77°F). The climate is good in this location in august. With 4.3in over 5 days, you risk getting wet slightly during your journey. But this is reasonably and it is only of temporary showers.
With a good weather, august is a good time to go in Vavaʻu island.
| August | |||
| Average temperature | 77°F | ||
| Highest temperature | 77°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 78°F | ||
| Rainfall | 4.3in | ||
| Number of days with rainfall | 5 day(s) (15%) | ||
| Humidity | 79% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 55% | ||
| Length of day | 11:29 | ||
| Our opinion at whereandwhen.net | good |
All cities in Tonga in august
| Nukuʻalofa in august | good weather |
| Haʻapai islands (Lifuka and Foa) in august | good weather |
| Niuafoʻou (Niuas islands) in august | good weather |
| Tongatapu Island in august | good weather |
| Vavaʻu island in august | good weather |
Weather data for Tonga in august:
Weather data for Tonga in august is derived from an average of the weather forecast since 2009 in Tonga. There is a margin of error and these forecasts are to be considered as general information only. The weather in Tonga can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Tonga.