September weather forecast
Matahau, Tonga

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Weather in September

September brings a marginally higher peak temperature in Matahau, staying close to 22.9°C (73.2°F). Rainfall volumes remain constant, mirroring August and establishing this phase as the less damp season of Matahau. Despite the constant temperatures, signs of transitioning weather persist as indicated by the increase in daylight hours. Even if the wind speeds experience a bit of a fall, wind conditions remain generally steady for the month. The pressure recordings, on the other hand, remain unchanged, reflecting a balance in atmospheric conditions.

Temperature

The coldest period in Matahau, Tonga, tends to be September, when average temperatures fluctuate between a high of 22.9°C (73.2°F) and a low of 21.7°C (71.1°F).

Humidity

The average relative humidity in September in Matahau is 77%.

Rainfall

In Matahau, during September, the rain falls for 14 days and regularly aggregates up to 64mm (2.52") of precipitation. In Matahau, during the entire year, the rain falls for 193.9 days and collects up to 991mm (39.02") of precipitation.

Daylight

In Matahau, the average length of the day in September is 11h and 59min.
On the first day of the month, sunrise is at 06:49 and sunset at 18:32. On the last day of September, in Matahau, Tonga, sunrise is at 06:22 and sunset at 18:39 +13.

Sunshine

In Matahau, the average sunshine in September is 7h.

UV index

April through December, with an average maximum UV index of 6, are months with the lowest UV index in Matahau. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the coldest month in Matahau?

September proves to be the coldest month in Matahau, recording an average maximum temperature of 22.9°C (73.2°F) and a minimum temperature of 21.7°C (71.1°F).

What is the average September temperature in Matahau?

An average high-temperature, in September, in Matahau, is 22.9°C (73.2°F) and the average low-temperature is 21.7°C (71.1°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in March is estimated at 30°C (86°F).

What is the average humidity in September in Matahau?

In September, the average relative humidity in Matahau, Tonga, is 77%.

How much does it rain in Matahau in September?

In September, in Matahau, the rain falls for 14 days. Throughout September, 64mm (2.52") of precipitation is accumulated.

How many hours of daylight does Matahau have in September?

In Matahau, the average day length in September is 11h and 59min.

When is the sunrise / sunset in September in Matahau?

In September, on the first day of the month, sunrise is at 06:49 and sunset at 18:32. On the last day of the month, in Matahau, sunrise is at 06:22 and sunset at 18:39 +13.

How many hours of sunshine does Matahau have in September?

In Matahau, Tonga, the average sunshine duration in September is 7h.

When is the lowest UV index in Matahau?

April through December, with an average maximum UV index of 6, are months with the lowest UV index in Matahau, Tonga.

How high is the UV index in September in Matahau?

In September, the average daily maximum UV index in Matahau is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Average temperature in September
Matahau, Tonga

Average temperature in September - Matahau, Tonga
  • Average high temperature in September: 22.9°C

The warmest month (with the highest average high temperature) is February (27.5°C).
The month with the lowest average high temperature is September (22.9°C).

  • Average low temperature in September: 21.7°C

The month with the highest average low temperature is February (26.7°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).

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Average pressure in September
Matahau, Tonga

Average pressure in September - Matahau, Tonga
  • Average pressure in September: 1016.2mbar

The months with the highest atmospheric pressure are August and September (1016.2mbar).
The months with the lowest atmospheric pressure are January and February (1008.6mbar).

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Average wind speed in September
Matahau, Tonga

Average wind speed in September - Matahau, Tonga
  • Average wind speed in September: 23.7km/h

The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is January (23.3km/h).

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Average humidity in September
Matahau, Tonga

Average humidity in September - Matahau, Tonga
  • Average humidity in September: 77%

The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (75%).

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Average rainfall in September
Matahau, Tonga

Average rainfall in September - Matahau, Tonga
  • Average rainfall in September: 64mm

The wettest month (with the highest rainfall) is February (163mm).
The driest month (with the least rainfall) is October (36mm).

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Average rainfall days in September
Matahau, Tonga

Average rainfall days in September - Matahau, Tonga
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is February (22.7 days).
The month with the least rainy days is October (12.9 days).

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Average daylight in September /
Average sunshine in September
Matahau, Tonga

Average daylight in September / Average sunshine in September - Matahau, Tonga
  • 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 0min

The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 48min).

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Average sunshine days in September
Matahau, Tonga

Average sunshine days in September - Matahau, Tonga
  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (3.8 days).

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Average UV index in September
Matahau, Tonga

Average UV index in September - Matahau, Tonga
  • 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).

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Average cloud cover in September
Matahau, Tonga

Average cloud cover in September - Matahau, Tonga
  • Average cloud cover in September: 50

The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 46).

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Average visibility in September
Matahau, Tonga

Average visibility in September - Matahau, Tonga
  • 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).

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Matahau, Tonga

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