September weather forecast
Kolia, Wallis and Futuna

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Weather in September

September ushers in an end to the resolutely cool weather in Kolia, with temperatures on the rise again. The rainfall also takes an upward trajectory, rising to an average of 90mm (3.54"), however still less compared to the earlier parts of the year. The gradual decrease of wind speeds continues, returning to a more serene setting after July and August's heightened gusts. The relative humidity and cloud cover remain consistent with previous months, maintaining the warm, tropical feel typical of Kolia. Daylight duration grows longer, portending extended, sunlit days in coming months.

Temperature

September in Kolia notes an average high-temperature of a still warm 27.3°C (81.1°F), subtly differing from August's 27.2°C (81°F). Throughout September, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 26.5°C (79.7°F).

Heat index

In September, the average heat index is evaluated at a tropical 30°C (86°F). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The months with the highest humidity in Kolia are June through September, with an average relative humidity of 79%.

Rainfall

In September, in Kolia, the rain falls for 22.3 days. Throughout September, 90mm (3.54") of precipitation is accumulated. In Kolia, during the entire year, the rain falls for 294.6 days and collects up to 2108mm (82.99") of precipitation.

Daylight

In September, the average length of the day in Kolia, Wallis and Futuna, 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 17:48 +12.

Sunshine

The average sunshine in September is 6.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Kolia are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the usual temperature for Kolia in September?

An average high-temperature, in September, in Kolia, is 27.3°C (81.1°F) and the average low-temperature is 26.5°C (79.7°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 30°C (86°F).

What is the most humid month in Kolia?

June through September, with an average relative humidity of 79%, are most humid months in Kolia.

What is the average humidity in September in Kolia?

In September, the average relative humidity in Kolia is 79%.

How much does it rain in Kolia in September?

In Kolia, Wallis and Futuna, in September, it is raining for 22.3 days, with typically 90mm (3.54") of accumulated precipitation.

What is the average length of the day in September in Kolia?

In Kolia, Wallis and Futuna, the average day length in September is 12h and 2min.

When are sunrise and sunset in September in Kolia?

In September, on the first day of the month, sunrise is at 05:56 and sunset at 17:47. On the last day of the month, in Kolia, sunrise is at 05:35 and sunset at 17:48 +12.

How long on average sun shines in September in Kolia?

The average sunshine duration in September in Kolia is 6.9h.

What is the month with the highest UV index in Kolia?

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

When is the lowest UV index in Kolia?

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

How high is the UV index in September in Kolia?

In Kolia, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in September
Kolia, Wallis and Futuna

Average temperature in September - Kolia, 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).

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Average pressure in September
Kolia, Wallis and Futuna

Average pressure in September - Kolia, 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).

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Average wind speed in September
Kolia, Wallis and Futuna

Average wind speed in September - Kolia, 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).

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Average humidity in September
Kolia, Wallis and Futuna

Average humidity in September - Kolia, 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%).

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Average rainfall in September
Kolia, Wallis and Futuna

Average rainfall in September - Kolia, 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).

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Average rainfall days in September
Kolia, Wallis and Futuna

Average rainfall days in September - Kolia, 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).

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

Average daylight in September / Average sunshine in September - Kolia, 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).

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Average sunshine days in September
Kolia, Wallis and Futuna

Average sunshine days in September - Kolia, 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).

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Average UV index in September
Kolia, Wallis and Futuna

Average UV index in September - Kolia, 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).

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Average cloud cover in September
Kolia, Wallis and Futuna

Average cloud cover in September - Kolia, 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).

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Average visibility in September
Kolia, Wallis and Futuna

Average visibility in September - Kolia, 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).

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Kolia, Wallis and Futuna

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