September weather forecast and climate
Alofi, Niue

The stunning view of the Hikutavake Reef in Alofi, Niue, from a bird
The stunning view of the Hikutavake Reef in Alofi, Niue, from a bird's eye view
The first month of the spring, September, is still a warm month in Alofi, Niue, with average temperature ranging between min. 20°C (68°F) and max. 26°C (78.8°F).

Temperature

The average high-temperature, in Alofi, is 26°C (78.8°F), while the average low-temperature is 20°C (68°F).

Rainfall

In September, the rain falls for 5 days. Throughout September, 138mm (5.4") of precipitation is accumulated. Throughout the year, in Alofi, there are 115 rainfall days, and 2171mm (85.5") of precipitation is accumulated.

Sea temperature

July through October, with an average sea temperature of 25°C (77°F), are months with the coldest seawater in Alofi, Niue. For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Alofi, the average length of the day is 12h.

Sunshine

In September, the average sunshine in Alofi is 5h.

UV index

The average UV index in September in Alofi is 11.

What is the temperature in September in Alofi?

The average high-temperature, in September, is 26°C (78.8°F), while the average low-temperature is 20°C (68°F).

How much does it rain in Alofi in September?

In September, the rain falls for 5 days. Throughout September, 138mm (5.4") of precipitation is accumulated.

What months are the sea coldest in Alofi?

July through October, with an average sea temperature of 25°C (77°F), are months with the coldest seawater in Alofi, Niue. For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How warm is the water in September in Alofi?

In Alofi, Niue, in September, the average water temperature is 25°C (77°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Alofi?

In September, the average length of the day in Alofi, Niue, is 12h.

How many hours of sunshine does Alofi have in September?

The average sunshine in September is 5h.

What is the UV index intensity in September in Alofi?

In Alofi, Niue, the average UV index in September is 11.
Average temperature in September - Alofi, Niue
  • Average high temperature in September: 26°C

Warmest months (with the highest average high temperature) are January, February and March (29°C).
Months with the lowest average high temperature are July and August (25°C).

  • Average low temperature in September: 20°C

Months with the highest average low temperature are January, February and March (23°C).
Coldest months (with the lowest average low temperature) are July, August and September (20°C).

Average rainfall in September - Alofi, Niue
  • Average rainfall in September: 138mm

The wettest month (with the highest rainfall) is March (322mm).
The driest month (with the lowest rainfall) is July (87mm).

Average rainfall days in September - Alofi, Niue
  • Average rainfall days in September: 5 days

Months with the highest number of rainy days are January and March (18 days).
The month with the lowest number of rainy days is August (3 days).

Average sea temperature in September - Alofi, Niue
  • Average sea temperature in September: 25°C

Best months for swimming (with the highest average sea temperature) are January, February, March and April (28°C).
Coldest months (with the lowest average sea temperature) are July, August, September and October (25°C).

Average daylight in September / Average sunshine in September - Alofi, Niue
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.3h).
The month with shortest days is June (Average daylight: 11h).

  • Average sunshine in September: 5h

Months with most sunshine are January and March (Average sunshine: 18h).
The month with least sunshine is August (Average sunshine: 3h).

Average UV index in September - Alofi, Niue
  • Average UV index in September: 11

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 6).

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