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 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
Koumac experiences an average high-temperature of a moderately hot 23.6°C (74.5°F) in September, subtly different from August's 22.8°C (73°F). Koumac's nighttime average temperature in September subtly descends to an enjoyable 19.5°C (67.1°F) from the daily highs.Humidity
September through November, with an average relative humidity of 74%, are the least humid months in Koumac, New Caledonia.Rainfall
The month with the least rainfall in Koumac is September, when the rain falls for 8.2 days and typically collects 15mm (0.59") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:11 and sunset at 17:54. On the last day of the month, sunrise is at 05:44 and sunset at 18:00 +11.
Sunshine
The average sunshine in September in Koumac is 7.7h.UV index
The months with the lowest UV index in Koumac are April through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in Koumac?
What is the least humid month in Koumac?
What is the average humidity in September in Koumac?
What is the driest month in Koumac?
How many days does it rain in September in Koumac?
How many hours of daylight does Koumac have in September?
What time are sunrise and sunset in September in Koumac?
How many hours of sunshine does Koumac have in September?
What are the months with the lowest UV index in Koumac?
How high is the UV index in September in Koumac?
Average temperature in September
Koumac, New Caledonia
- Average high temperature in September: 23.6°C
The warmest month (with the highest average high temperature) is February (28.3°C).
The months with the lowest average high temperature are July and August (22.8°C).
- Average low temperature in September: 19.5°C
The month with the highest average low temperature is February (24.8°C).
The coldest month (with the lowest average low temperature) is August (18.9°C).
Average pressure in September
Koumac, New Caledonia
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is August (1016.4mbar).
The month with the lowest atmospheric pressure is February (1007.6mbar).
Average wind speed in September
Koumac, New Caledonia
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is June (15.4km/h).
The calmest month (with the lowest average wind speed) is December (13.3km/h).
Average humidity in September
Koumac, New Caledonia
- Average humidity in September: 74%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are September, October and November (74%).
Average rainfall in September
Koumac, New Caledonia
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is February (146mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in September
Koumac, New Caledonia
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is March (24.8 days).
The months with the least rainy days are August and September (8.2 days).
Average daylight in September /
Average sunshine in September
Koumac, New Caledonia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in September
Koumac, New Caledonia
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is July (19.7 days).
The month with the least sunshine days is March (2.5 days).
Average UV index in September
Koumac, New Caledonia
- Average UV index in September: 6
The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Koumac, New Caledonia
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in September
Koumac, 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).
Koumac, New Caledonia
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