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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Tonga, check out our Nuku‘alofa's climate page.
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%
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 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 2025.
- 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
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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Tonga, check out our Nuku‘alofa's climate page.
See the full Nuku‘alofa climate overview or explore weather in Tonga.
