Weather in Nuku'alofa in September 2025
Average weather
Average temperature in Nuku'alofa in September
The temperature in September is +23°C on average, with a range between a maximum of +24°C during the day and a minimum of +21°C at night.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +23°C to +22°C.
Is Nuku'alofa warm or cold in September?
Nuku'alofa is typically warm in September.
Maximum temperatures go up compared to the previous month from +23°C to +23°C. The minimum temperature also goes up from +21°C to +22°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the coolest months in Nuku'alofa, here is the comparison with other months:
Climate in Nuku'alofa in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +23°C | +23°C | +23°C | ||||
| Min. temperature | ||||||
| +18°C | +18°C | +19°C | ||||
| Max. temperature | ||||||
| +26°C | +25°C | +26°C | ||||
| Rainfall | ||||||
| 98 mm | 102 mm | 94 mm | ||||
| Wind | ||||||
| 5 m/s | 4 m/s | 5 m/s | ||||
| Humidity | ||||||
| 75% | 77% | 78% | ||||
| Air pressure | ||||||
| 1015 HPa | 1015 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 14 | 12 | 14 | ||||
| Rainy days | ||||||
| 15 | 15 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. The temperature levels stay the same in the area of +23°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 98 mm to 102 mm. Humidity rises from 75% to 77%. Winds are calmer in comparison to August, going down from 5 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 6 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Nuku'alofa is gradually decreasing during September, going from 6 m/s to 4 m/s over the course of the month.
Rain
How was the weather last September in Nuku'alofa?
Climate Change over Years
The climate in Nuku'alofa in September has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+24°C) and the highest in 2022 (+26°C). The driest year was 1995 with only 839 mm of rainfall, and the wettest year was 2022 with 2518 mm.
FAQ
Is September a good time to visit Nuku'alofa?
Can you sunbathe in Nuku'alofa in September?
Is Nuku'alofa rainy in September?
Is it sunny in Nuku'alofa in September?
Monthly weather in Nuku'alofa
Source of the data
For this page, we’ve looked at the typical weather in Nuku'alofa, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
