Explore Tonga
Tonga is the first country of the international date limit. Being the first to start the new day on a peace of paradise is something you might want to add to your bucket list.
Nuku‘alofa Weather in September
September in Nuku‘alofa brings high temperatures, with highs of 24°C (75°F) and nights dropping to 22°C (72°F). Rainfall is on the higher side this month, averaging around 115 mm (4.5 in), so keep a rain jacket handy.
Rainfall in Nuku‘alofa in September
Rain is expected on roughly 15 days, totalling around 115 mm (4.5 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Nuku‘alofa in September
Daytime highs in Nuku‘alofa in September reach 24°C (75°F), with nights around 22°C (72°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows of 22°C (72°F), the nights are warm and generally comfortable.If your ideal day consists of dry skies and pleasant temperatures, April, May, June, July, August, September, October, November and December typically offer the best circumstances for Nuku‘alofa.
Nuku‘alofa Temperature in September
Min Temperature
22°C (72°F)
Max Temperature
24°C (75°F)
Chance of Rain
50%
Precipitation
115 mm (4.5 in)
Rainy days
15 days
Humidity
74%
Nuku‘alofa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Nuku‘alofa - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nuku‘alofa typically stay consistent throughout September, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in September
Historical weather records for Nuku‘alofa in September
Browse day-by-day weather records for Nuku‘alofa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nuku‘alofa historical weather extremes in September
The extremes listed below come from historical weather data collected in Nuku‘alofa from 2003 through 2026.
- The hottest September day on record in Nuku‘alofa reached 30°C (86°F) (September 18, 2007).
- The lowest daytime temperature in September was 21°C (70°F), recorded on September 9, 2003.
- Nighttime temperatures dropped to 12°C (54°F) on September 10, 2018, marking the coldest September night on record.
Best Places in Tonga in September
Find out more about the weather in Tonga and which places have the best travel conditions in this month. See all of Tonga in September →
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).
What to Wear in Nuku‘alofa in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Nuku‘alofa in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Nuku‘alofa 3-Day Forecast
More climate data for Nuku‘alofa
See the full Nuku‘alofa climate overview or explore weather in Tonga.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Explore Tonga
An alternative way to discover Sydney
We have made an overview of the sights in Sydney that you must see if you want to visit Sydney in an alternative way.
The Tongariro Crossing in New Zealand
It is called the most beautiful walk in New Zealand, the Tongariro Crossing. The official hiking season starts late October until end of April.
The most relaxed and alternative area of Australia is called the Byron Shire
The Byron Shire is one of the most pretty areas in the world. Not only in terms on natural beauty, also the relaxed vibe and people make this an area that remains close to your heart.