September weather forecast
Utufua, Wallis and Futuna

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Weather in September

September illustrates a return of rainfall in Utufua with precipitation reaching 82mm (3.23"). The weather configuration remains very close to the previous month, however, subtle changes outline the shift towards the rainier part of the year. This increase in precipitation causes an increase in cloudy days, resulting in slightly higher relative humidity. Overall, September signals the start of a slow climb towards higher rainfall frequencies.

Temperature

The months of July through September see the lowest levels of Utufua's temperatures, averaging a high of 27.7°C (81.9°F).

Heat index

September's average heat index is appraised at a hot 31°C (87.8°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The months with the highest humidity are June through September, with an average relative humidity of 78%.

Rainfall

In Utufua, during September, the rain falls for 20.8 days and regularly aggregates up to 82mm (3.23") of precipitation. In Utufua, during the entire year, the rain falls for 285.2 days and collects up to 2066mm (81.34") of precipitation.

Daylight

In September, the average length of the day is 12h and 2min.
On the first day of September, sunrise is at 05:48 and sunset at 17:40. On the last day of the month, sunrise is at 05:27 and sunset at 17:41 +12.

Sunshine

The average sunshine in September is 7.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during September leads to these advisories:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What part of the year is the coldest in Utufua?

July through September represent the coldest period, with an average high-temperature of 27.7°C (81.9°F).

What are the temperatures in September?

During September, Utufua experiences an average high-temperature of 27.7°C (81.9°F) and a low-temperature of 26.9°C (80.4°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 31°C (87.8°F).

What are the most humid months?

The months with the highest humidity are June through September, with an average relative humidity of 78%.

What is the average humidity in September?

In September, the average relative humidity is 78%.

How much does it rain in September?

In Utufua, in September, during 20.8 rainfall days, 82mm (3.23") of precipitation is typically accumulated.

How many hours of daylight does Utufua have in September?

In Utufua, the average day length in September is 12h and 2min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 05:48 and sunset at 17:40. On the last day of the month, sunrise is at 05:27 and sunset at 17:41 +12.

How long on average sun shines in September?

The average sunshine duration in September is 7.6h.

What are the months with the highest UV index?

The months with the highest UV index are January through December, with an average maximum UV index of 7.

When is the lowest UV index?

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

What is the UV index reading in September?

In Utufua, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Utufua, Wallis and Futuna

Average temperature in September - Utufua, Wallis and Futuna
  • Average high temperature in September: 27.7°C

The warmest months (with the highest average high temperature) are February and March (29.1°C).
The months with the lowest average high temperature are July, August and September (27.7°C).

  • Average low temperature in September: 26.9°C

The month with the highest average low temperature is March (28.2°C).
The coldest month (with the lowest average low temperature) is August (26.8°C).

Average pressure in September
Utufua, Wallis and Futuna

Average pressure in September - Utufua, Wallis and Futuna
  • Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is January (1007.1mbar).

Average wind speed in September
Utufua, Wallis and Futuna

Average wind speed in September - Utufua, Wallis and Futuna
  • Average wind speed in September: 25.4km/h

The windiest month (with the highest average wind speed) is July (27.2km/h).
The calmest month (with the lowest average wind speed) is March (17.2km/h).

Average humidity in September
Utufua, Wallis and Futuna

Average humidity in September - Utufua, Wallis and Futuna
  • Average humidity in September: 78%

The months with the highest relative humidity are June, July, August and September (78%).
The month with the lowest relative humidity is March (75%).

Average rainfall in September
Utufua, Wallis and Futuna

Average rainfall in September - Utufua, Wallis and Futuna
  • Average rainfall in September: 82mm

The wettest month (with the highest rainfall) is February (405mm).
The driest month (with the least rainfall) is August (67mm).

Average rainfall days in September
Utufua, Wallis and Futuna

Average rainfall days in September - Utufua, Wallis and Futuna
  • Average rainfall days in September: 20.8 days

The month with the highest number of rainy days is December (28.2 days).
The month with the least rainy days is July (19.1 days).

Average daylight in September /
Average sunshine in September
Utufua, Wallis and Futuna

Average daylight in September / Average sunshine in September - Utufua, Wallis and Futuna
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 5h and 42min).

Average sunshine days in September
Utufua, Wallis and Futuna

Average sunshine days in September - Utufua, Wallis and Futuna
  • Average sunshine days in September: 6.8 days

The month with the most sunshine days is July (9.3 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in September
Utufua, Wallis and Futuna

Average UV index in September - Utufua, 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
Utufua, Wallis and Futuna

Average cloud cover in September - Utufua, Wallis and Futuna
  • Average cloud cover in September: 46

The month with the most cloud cover is August (Cloud cover 49).
The months with the least cloud cover are March, April and May (Cloud cover 44).

Average visibility in September
Utufua, Wallis and Futuna

Average visibility in September - Utufua, Wallis and Futuna
  • Average visibility in September: 10km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).

Utufua, Wallis and Futuna

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