Noumea
New Caledonia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Noumea, New Caledonia

A beautiful shore park in Noumea, New Caledonia, with a view of the clear calm waters and a distant island
A beautiful shore park in Noumea, New Caledonia, with a view of the clear calm waters and a distant island
September, the first month of the spring, in Noumea, is a moderately hot month, with average temperature ranging between max 23.8°C (74.8°F) and min 17.9°C (64.2°F).

Temperature

In September, the average high-temperature is almost the same as in August - a moderately hot 23.8°C (74.8°F). In Noumea, the average low-temperature is 17.9°C (64.2°F).

Rainfall

September is the month with the least rainfall. Rain falls for 9.6 days and accumulates 39.2mm (1.5") of precipitation.

Sea temperature

Months with the coldest seawater in Noumea, New Caledonia, are August and September, with an average sea temperature of 22.8°C (73°F).
Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.8°C (73°F).

Daylight

The average length of the day in September is 12h.

Sunshine

In September, the average sunshine is 7.4h.

UV index

The average daily maximum UV index in Noumea is 9. A UV Index reading of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 9 transform into the following instructions:
Take extra precautions. Protection against sun damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Noumea?

In September, in Noumea, the average high-temperature is 23.8°C (74.8°F), and the average low-temperature is 17.9°C (64.2°F).

How many days does it rain in September in Noumea?

In Noumea, New Caledonia, in September, it is raining for 9.6 days, with typically 39.2mm (1.5") of accumulated precipitation.

What is the driest month in Noumea?

September is the month with the least rainfall in Noumea, New Caledonia. Rain falls for 9.6 days and accumulates 39.2mm (1.5") of precipitation.

What are the months with the coldest sea water in Noumea?

Months with the coldest seawater in Noumea are August and September, with an average sea temperature of 22.8°C (73°F).

How warm is the water in September in Noumea?

In September, the average sea temperature in Noumea is 22.8°C (73°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.8°C (73°F) water.

How many hours of daylight does Noumea have in September?

The average length of the day in September is 12h.

How many hours of sunshine does Noumea have in September?

In Noumea, New Caledonia, the average sunshine in September is 7.4h.

What is the UV index reading in September in Noumea?

In September, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Noumea, New Caledonia
  • Average high temperature in September: 23.8°C

The warmest month (with the highest average high temperature) is February (29°C).
The month with the lowest average high temperature is July (22.6°C).

  • Average low temperature in September: 17.9°C

The month with the highest average low temperature is February (23.2°C).
The coldest month (with the lowest average low temperature) is July (17.3°C).

Average rainfall in September - Noumea, New Caledonia
  • Average rainfall in September: 39.2mm

The wettest month (with the highest rainfall) is March (134.6mm).
The driest month (with the lowest rainfall) is September (39.2mm).

Average rainfall days in September - Noumea, New Caledonia
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is June (17.3 days).
The month with the lowest number of rainy days is October (9.3 days).

Average sea temperature in September - Noumea, New Caledonia
  • Average sea temperature in September: 22.8°C

The best month for swimming (with the highest average sea temperature) is February (27.5°C).
Coldest months (with the lowest average sea temperature) are August and September (22.8°C).

Average daylight in September / Average sunshine in September - Noumea, New Caledonia
  • Average daylight in September: 12h

The month with the longest days is December (Average daylight: 13.5h).
The month with shortest days is June (Average daylight: 10.8h).

  • Average sunshine in September: 7.4h

The month with most sunshine is December (Average sunshine: 8.4h).
The month with least sunshine is June (Average sunshine: 5.2h).

Average UV index in September - Noumea, New Caledonia
  • Average UV index in September: 9

Months with the highest UV index are January, February, March, November and December (UV index 12).
The month with the lowest UV index is June (UV index 5).