Tongatapu weather in September 2025

The weather in Tongatapu in September is hot. The average temperatures are between 22°C and 23°C.

You can expect about 3 to 8 days of rain in Tongatapu during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Tongatapu in September 2025.

If you’re planning to visit Tongatapu in the near future, we highly recommend that you review the 14 day weather forecast for Tongatapu before you arrive.

Temperatures

23° / 22°

Rainy Days

Snowy Days

Dry Days

Rainfall

146

Sun Hours

9.9

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 22° /21°	2 22° /19°	3 22° /19°	4 22° /19°	5 23° /20°	6 23° /22°
7 23° /21°	8 23° /23°	9 23° /23°	10 23° /22°	11 24° /22°	12 23° /22°	13 23° /22°
14 23° /23°	15 24° /23°	16 24° /23°	17 24° /23°	18 23° /22°	19 22° /22°	20 23° /21°
21 23° /22°	22 23° /22°	23 23° /22°	24 23° /21°	25 22° /22°	26 22° /21°	27 23° /22°
28 24° /22°	29 23° /22°	30 22° /22°

Explore the weather in Tongatapu in other months

Tongatapu annual weather

Month	Temperatures	Rainy Days	Dry Days	Rainfall	Weather	More details
January	27° / 26°	10	21	314 mm	Good	Tongatapu in January
February	27° / 26°	10	19	357 mm	Good	Tongatapu in February
March	27° / 26°	10	21	298 mm	Good	Tongatapu in March
April	26° / 25°	5	25	181 mm	Perfect	Tongatapu in April
May	25° / 24°	4	27	145 mm	Perfect	Tongatapu in May
June	24° / 23°	4	26	135 mm	Perfect	Tongatapu in June
July	23° / 22°	5	26	130 mm	Perfect	Tongatapu in July
August	23° / 21°	4	27	122 mm	Perfect	Tongatapu in August
September	23° / 22°	5	25	146 mm	Perfect	Tongatapu in September
October	24° / 23°	3	28	94 mm	Perfect	Tongatapu in October
November	25° / 24°	3	27	86 mm	Perfect	Tongatapu in November
December	26° / 25°	4	27	137 mm	Perfect	Tongatapu in December

Temperatures in Tongatapu in September

Rain in Tongatapu in September

Weather in Tongatapu in September - FAQ

What is the average temperature in Tongatapu in September?

The average temperature in Tongatapu in September is 22/23° C.

What is the chance of rain in Tongatapu in September?

On average, there are 5 rainy days in Tongatapu during September.

Weather wise, is September a good time to visit Tongatapu?

The weather in Tongatapu in September is perfect.

Can it snow in Tongatapu in September?

On average, there are 0 snowy days in Tongatapu in September.

More about the weather in Tongatapu