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
The beginning of September reveals an average high-temperature of a still moderately hot 27.3°C (81.1°F), showing minimal deviation from the previous month. In Leava, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at a still warm 26.5°C (79.7°F).Heat index
For September, the heat index is estimated at a hot 30°C (86°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The months with the highest humidity are June through September, with an average relative humidity of 79%.Rainfall
In September, the rain falls for 22.3 days. Throughout September, 90mm (3.54") of precipitation is accumulated. Throughout the year, there are 294.6 rainfall days, and 2108mm (82.99") of precipitation is accumulated.Sea temperature
July through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater in Leava.Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.
Daylight
The average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 05:56 and sunset at 17:47. On the last day of the month, sunrise is at 05:35 and sunset at 17:49 +12.
Sunshine
In September, the average sunshine is 6.9h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
When is the sea coldest?
How warm is the water in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Leava have in September?
When is the highest UV index?
What are the months with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Leava, Wallis and Futuna
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is February (29.2°C).
The months with the lowest average high temperature are July and August (27.2°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is January (28.2°C).
The coldest month (with the lowest average low temperature) is July (25.7°C).
Average pressure in September
Leava, Wallis and Futuna
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is September (1012.4mbar).
The month with the lowest atmospheric pressure is January (1007mbar).
Average wind speed in September
Leava, Wallis and Futuna
- Average wind speed in September: 26.6km/h
The windiest month (with the highest average wind speed) is July (28.5km/h).
The calmest month (with the lowest average wind speed) is March (18.6km/h).
Average humidity in September
Leava, Wallis and Futuna
- Average humidity in September: 79%
The months with the highest relative humidity are June, July, August and September (79%).
The months with the lowest relative humidity are January, February and March (76%).
Average rainfall in September
Leava, Wallis and Futuna
- Average rainfall in September: 90mm
The wettest month (with the highest rainfall) is February (288mm).
The driest month (with the least rainfall) is August (78mm).
Average rainfall days in September
Leava, Wallis and Futuna
- Average rainfall days in September: 22.3 days
The month with the highest number of rainy days is March (27.1 days).
The month with the least rainy days is September (22.3 days).
Average sea temperature in September
Leava, Wallis and Futuna
- Average sea temperature in September: 27°C
The best months for swimming (with the highest average sea temperature) are January, February, March, April and December (29°C).
The coldest months (with the lowest average sea temperature) are July, August and September (27°C).
Average daylight in September /
Average sunshine in September
Leava, Wallis and Futuna
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).
Average sunshine days in September
Leava, Wallis and Futuna
- Average sunshine days in September: 3.4 days
The month with the most sunshine days is October (4.3 days).
The month with the least sunshine days is February (2.2 days).
Average UV index in September
Leava, Wallis and Futuna
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Leava, Wallis and Futuna
- Average cloud cover in September: 51
The month with the most cloud cover is August (Cloud cover 54).
The months with the least cloud cover are January and March (Cloud cover 45).
Average visibility in September
Leava, Wallis and Futuna
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
Leava, Wallis and Futuna
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