Alofi weather in September 2026

Q: How hot is it in Alofi in September?

Daytime temperatures usually reach 26°C in Alofi in September with moderate heat and humidity, falling to 20°C at night.

Q: How warm is the sea around Alofi in September?

The average sea temperature around Alofi in September is 25°C.

Q: Does it rain in Alofi in September?

There are usually 5 days with some rain in Alofi in September and the average monthly rainfall is 138mm.

Expect daytime maximum temperatures of 79°F in Alofi, Niue in September based on long-term weather averages. There is typically5.4 inches of rainfall in the month.

79
79°F max day temperature
5
5 days with some rainfall
68
68°F min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
5.4
5.4 inches of monthly rainfall
11
11 (Extreme) UV index
77
77°F sea temperature

More about Alofi

Alofi by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Niue

International Drivers Association: Driving permit plans from £37

Deal

Check out International driving permit plans from only £37
Choose from print + digital & digtial only permits
Valid for up to 3 years & use in over 150 countries

Go to International Drivers Association deal >>

The September weather guide for Niue, represented by Alofi, (Alofi) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)