September weather forecast and climate
Trebečaj, Bosnia and Herzegovina

Weather in September

September, the first month of the autumn, in Trebečaj, is also an enjoyable month, with temperature in the range of an average low of 7.7°C (45.9°F) and an average high of 19.4°C (66.9°F).

Temperature

In September, the average high-temperature decreases, from a warm 24.8°C (76.6°F) in August, to an enjoyable 19.4°C (66.9°F). The average low-temperature, in September, is 7.7°C (45.9°F).

Humidity

In Trebečaj, the average relative humidity in September is 75%.

Rainfall

In Trebečaj, during September, the rain falls for 14.5 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, in Trebečaj, there are 166.4 rainfall days, and 892mm (35.12") of precipitation is accumulated.

Snowfall

Months with snowfall in Trebečaj are January through June, September through December. September is the first month it typically snows in Trebečaj. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Trebečaj, Bosnia and Herzegovina, during the entire year, snow falls for 87.8 days, and aggregates up to 2419mm (95.24") of snow.

Daylight

In Trebečaj, Bosnia and Herzegovina, the average length of the day in September is 12.5h.

Sunshine

The average sunshine in Trebečaj, Bosnia and Herzegovina, is 9.1h.

UV index

In Trebečaj, Bosnia and Herzegovina, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Trebečaj?

In September, the average high-temperature is 19.4°C (66.9°F), and the average low-temperature is 7.7°C (45.9°F).

What is the average humidity in September in Trebečaj?

In September, the average relative humidity in Trebečaj is 75%.

How many days does it rain in September in Trebečaj?

In Trebečaj, Bosnia and Herzegovina, during September, the rain falls for 14.5 days and regularly aggregates up to 53mm (2.09") of precipitation.

When does it start snowing in Trebečaj?

September is the first month it typically snows in Trebečaj. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

How many hours of daylight does Trebečaj have in September?

The average length of the day in September is 12.5h.

How many hours of sunshine does Trebečaj have in September?

In Trebečaj, Bosnia and Herzegovina, the average sunshine in September is 9.1h.

What is the UV index reading in September in Trebečaj?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in September
Trebečaj, Bosnia and Herzegovina

Average temperature in September - Trebečaj, Bosnia and Herzegovina
  • Average high temperature in September: 19.4°C

The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (1.6°C).

  • Average low temperature in September: 7.7°C

The month with the highest average low temperature is August (11.1°C).
The coldest month (with the lowest average low temperature) is January (-5.2°C).

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Average pressure in September
Trebečaj, Bosnia and Herzegovina

Average pressure in September - Trebečaj, Bosnia and Herzegovina
  • Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1014.6mbar).

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Average wind speed in September
Trebečaj, Bosnia and Herzegovina

Average wind speed in September - Trebečaj, Bosnia and Herzegovina
  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is February (9.1km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).

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Average humidity in September
Trebečaj, Bosnia and Herzegovina

Average humidity in September - Trebečaj, Bosnia and Herzegovina
  • Average humidity in September: 75%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in September
Trebečaj, Bosnia and Herzegovina

Average rainfall in September - Trebečaj, Bosnia and Herzegovina
  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is November (94mm).
The driest month (with the least rainfall) is August (48mm).

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Average rainfall days in September
Trebečaj, Bosnia and Herzegovina

Average rainfall days in September - Trebečaj, Bosnia and Herzegovina
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is June (21.8 days).
The month with the least rainy days is February (7.4 days).

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Average snowfall in September
Trebečaj, Bosnia and Herzegovina

Average snowfall in September - Trebečaj, Bosnia and Herzegovina
  • Average snowfall in September: 1mm

The month with the highest snowfall is January (569mm).
Months with the least snowfall are July and August (0mm).

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Average snowfall days in September
Trebečaj, Bosnia and Herzegovina

Average snowfall days in September - Trebečaj, Bosnia and Herzegovina
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (18.9 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Trebečaj, Bosnia and Herzegovina

Average daylight in September / Average sunshine in September - Trebečaj, Bosnia and Herzegovina
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is August (Average sunshine: 11.3h).
The month with the least sunshine is February (Average sunshine: 4h).

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Average sunshine days in September
Trebečaj, Bosnia and Herzegovina

Average sunshine days in September - Trebečaj, Bosnia and Herzegovina
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is October (15 days).
The month with the least sunshine days is June (5.9 days).

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Average UV index in September
Trebečaj, Bosnia and Herzegovina

Average UV index in September - Trebečaj, Bosnia and Herzegovina
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Trebečaj, Bosnia and Herzegovina

Average cloud cover in September - Trebečaj, Bosnia and Herzegovina
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in September
Trebečaj, Bosnia and Herzegovina

Average visibility in September - Trebečaj, Bosnia and Herzegovina
  • Average visibility in September: 8km

Months with the highest visibility are July and August (9km).
Months with the lowest visibility are January and February (6km).

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