Tonga

Tonga Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Tonga in September.

Thinking about venturing to Tonga this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Tonga in September

September in Tonga generally has warm temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect warm maximum daytime temperatures of around 24°C (75°F) and nighttime temperatures around 22°C (72°F) in Nuku‘alofa.

For a closer look at conditions across Tonga, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Lotofoa with an average of 98 mm (3.9 in) to high rainfall in Kanokupolu with 115 mm (4.5 in).

Explore Tonga by month

Pick a month to see the average temperature, rainfall and sunshine in Tonga - and find the best time to visit. (based on Nuku‘alofa)

Best Places to Visit in Tonga in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Tonga.

perfect weather
pleasant
tolerable
unpleasant
poor

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).

Popular Destinations in Tonga

What is the weather like in September for some of the most popular destinations in Tonga?

Temperature range in Tonga (September)

Precipitation variation in Tonga (September)

Nuku‘alofa

In September Nuku‘alofa generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are very good that month.

August
September
October
Max temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Min temperature
22°C (72°F)
22°C (72°F)
23°C (73°F)
Monthly rainfall
118 mm (4.6 in)
115 mm (4.5 in)
103 mm (4.1 in)
Monthly rainy days
18 days
15 days
14 days
Weather conditions

Neiafu

In September Neiafu generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are very good that month.

August
September
October
Max temperature
26°C (79°F)
26°C (79°F)
27°C (81°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
87 mm (3.4 in)
104 mm (4.1 in)
122 mm (4.8 in)
Monthly rainy days
18 days
15 days
14 days
Weather conditions

Utungake

In September Utungake generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are very good that month.

August
September
October
Max temperature
26°C (79°F)
26°C (79°F)
27°C (81°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
87 mm (3.4 in)
104 mm (4.1 in)
122 mm (4.8 in)
Monthly rainy days
18 days
15 days
14 days
Weather conditions

Lotofoa

In September Lotofoa generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 23°C (73°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

August
September
October
Max temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly rainfall
98 mm (3.9 in)
98 mm (3.9 in)
108 mm (4.3 in)
Monthly rainy days
18 days
15 days
14 days
Weather conditions

Kanokupolu

In September Kanokupolu generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 22°C (72°F) and high monthly rainfall. So on average the conditions are very good that month.

August
September
October
Max temperature
24°C (75°F)
24°C (75°F)
25°C (77°F)
Min temperature
22°C (72°F)
22°C (72°F)
23°C (73°F)
Monthly rainfall
119 mm (4.7 in)
115 mm (4.5 in)
101 mm (4 in)
Monthly rainy days
18 days
15 days
14 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Tonga.

Popular cities in September

Day & night temperatures, rainfall and average weather in Tonga in September.

City Weather Day temp Night temp Rainfall
Nuku‘alofa 24°C (75°F) 22°C (72°F) 115 mm (4.5 in)
Neiafu 26°C (79°F) 24°C (75°F) 104 mm (4.1 in)
Utungake 26°C (79°F) 24°C (75°F) 104 mm (4.1 in)
Lotofoa 25°C (77°F) 23°C (73°F) 98 mm (3.9 in)
Kanokupolu 24°C (75°F) 22°C (72°F) 115 mm (4.5 in)
Uoleva Island 25°C (77°F) 23°C (73°F) 100 mm (3.9 in)

Tonga weather in September: frequently asked questions

What is the weather like in Tonga in September?

September in Tonga brings very good weather. In Nuku‘alofa, daytime temperatures are typically around 24°C (75°F) and nighttime lows hover near 22°C (72°F).

What is the average temperature in Tonga in September?

Daytime temperatures in Nuku‘alofa peak at roughly 24°C (75°F) in September, dropping to about 22°C (72°F) overnight.

Does Tonga get a lot of rain in September?

Tonga sees substantial rainfall in September. Nuku‘alofa typically averages about 115 mm (4.5 in), a mix of wet and dry days, but bring an umbrella.

Is September a Good Time to Visit Tonga?

We consider September to be one of the best times to travel to Tonga. Typically, the climate in Nuku‘alofa is very good. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Tonga is in April, May, June, July, August, September, October, November and December with generally very good weather in Nuku‘alofa. In contrast, January, February and March tend to have mixed weather conditions.

Interested in more climate information?

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.

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