Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset in Noumea brings an average high-temperature of a still pleasant 21.3°C (70.3°F), showing a minute difference from August's 20.7°C (69.3°F). Noumea logs an average low-temperature of 17.8°C (64°F) during the nights of September, subtly lower than its daytime highs.Humidity
In Noumea, New Caledonia, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.3 days and typically collects 29mm (1.14") of precipitation.Sea temperature
The months with the coldest seawater in Noumea are August and September, with an average sea temperature of 22.8°C (73°F).Note: Given an individual's cold sensitivity, considering factors like sunshine, wind, and air temperature, a brief swim in 22.8°C (73°F) water might be pleasurable. (FYI: The standard water temperature for Olympic swimming contests is 25°C (77°F) to 28°C (82.4°F).)
Daylight
In September, the average length of the day is 11h and 58min.On the first day of September in Noumea, sunrise is at 06:03 and sunset at 17:44. On the last day of the month, sunrise is at 05:35 and sunset at 17:52 +11.
Sunshine
In September, the average sunshine in Noumea is 8.1h.UV index
May through September, with an average maximum UV index of 5, are months with the lowest UV index in Noumea. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice! The Sun's UV exposure elevates with sand and water reflections.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Noumea in September?
What is the average humidity in September in Noumea?
What is the driest month in Noumea?
How many days does it rain in September in Noumea?
What are the months with the coldest sea water in Noumea?
What is the water temperature in September in Noumea?
What is the average length of the day in September in Noumea?
When is the sunrise / sunset in September in Noumea?
How many hours of sunshine does Noumea have in September?
What is the month with the lowest UV index in Noumea?
What is the UV index intensity in September in Noumea?
Average temperature in September
Noumea, New Caledonia
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is July (20.6°C).
- Average low temperature in September: 17.8°C
The month with the highest average low temperature is February (23.8°C).
The coldest month (with the lowest average low temperature) is August (17.6°C).
Average pressure in September
Noumea, New Caledonia
- Average pressure in September: 1017.1mbar
The months with the highest atmospheric pressure are July, August and September (1017.1mbar).
The month with the lowest atmospheric pressure is February (1008.5mbar).
Average wind speed in September
Noumea, New Caledonia
- Average wind speed in September: 15.5km/h
The windiest month (with the highest average wind speed) is March (18.8km/h).
The calmest month (with the lowest average wind speed) is August (14.6km/h).
Average humidity in September
Noumea, New Caledonia
- Average humidity in September: 78%
The months with the highest relative humidity are February and March (83%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Noumea, New Caledonia
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is March (134mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in September
Noumea, New Caledonia
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is March (23.7 days).
The month with the least rainy days is September (14.3 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).
The 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 and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is November (Average sunshine: 10h and 0min).
The months with the least sunshine are April, May, June and July (Average sunshine: 5h and 42min).
Average sunshine days in September
Noumea, New Caledonia
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is August (8.3 days).
The month with the least sunshine days is April (4.3 days).
Average UV index in September
Noumea, New Caledonia
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, October, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 5).
Average cloud cover in September
Noumea, New Caledonia
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Noumea, New Caledonia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Noumea, New Caledonia
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