September weather forecast and climate
Koljani, Bosnia and Herzegovina

Weather in September

The first month of the autumn, September, is also an agreeable month in Koljani, Bosnia and Herzegovina, with temperature in the range of an average high of 21.8°C (71.2°F) and an average low of 9.9°C (49.8°F).

Temperature

In September, the average high-temperature drops, from a warm 27.5°C (81.5°F) in August, to an agreeable 21.8°C (71.2°F). The average low-temperature, in Koljani, is 9.9°C (49.8°F).

Humidity

The average relative humidity in September is 73%.

Rainfall

In September, the rain falls for 13.1 days. Throughout September, 45mm (1.77") of precipitation is accumulated. Throughout the year, in Koljani, there are 160.4 rainfall days, and 665mm (26.18") of precipitation is accumulated.

Snowfall

In Koljani, Bosnia and Herzegovina, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

In September, the average sunshine in Koljani is 9.1h.

UV index

In Koljani, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Koljani?

In September, in Koljani, the average high-temperature is 21.8°C (71.2°F), and the average low-temperature is 9.9°C (49.8°F).

What is the average humidity in September in Koljani?

The average relative humidity in September is 73%.

How many days does it rain in September in Koljani?

In Koljani, during September, the rain falls for 13.1 days and regularly aggregates up to 45mm (1.77") of precipitation.

Does it snow in Koljani in September?

In Koljani, Bosnia and Herzegovina, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Koljani?

May through September are months without snowfall in Koljani, Bosnia and Herzegovina.

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

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

How many hours of sunshine does Koljani have in September?

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

What is the UV index reading in September in Koljani?

The average daily maximum UV index in September in Koljani, Bosnia and Herzegovina, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Koljani, Bosnia and Herzegovina

Average temperature in September - Koljani, Bosnia and Herzegovina
  • Average high temperature in September: 21.8°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (3.8°C).

  • Average low temperature in September: 9.9°C

The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (-2.6°C).

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Average pressure in September
Koljani, Bosnia and Herzegovina

Average pressure in September - Koljani, Bosnia and Herzegovina
  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
Months with the lowest atmospheric pressure are May, June and July (1014.6mbar).

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Average wind speed in September
Koljani, Bosnia and Herzegovina

Average wind speed in September - Koljani, Bosnia and Herzegovina
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest months (with the lowest average wind speed) are August and September (6.1km/h).

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Average humidity in September
Koljani, Bosnia and Herzegovina

Average humidity in September - Koljani, Bosnia and Herzegovina
  • Average humidity in September: 73%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Koljani, Bosnia and Herzegovina

Average rainfall in September - Koljani, Bosnia and Herzegovina
  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is May (102mm).
The driest month (with the least rainfall) is August (38mm).

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Average rainfall days in September
Koljani, Bosnia and Herzegovina

Average rainfall days in September - Koljani, Bosnia and Herzegovina
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in September
Koljani, Bosnia and Herzegovina

Average snowfall in September - Koljani, Bosnia and Herzegovina
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (213mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in September
Koljani, Bosnia and Herzegovina

Average snowfall days in September - Koljani, Bosnia and Herzegovina
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is February (Average sunshine: 4.4h).

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Average sunshine days in September
Koljani, Bosnia and Herzegovina

Average sunshine days in September - Koljani, Bosnia and Herzegovina
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is August (18.5 days).
The month with the least sunshine days is May (9 days).

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Average UV index in September
Koljani, Bosnia and Herzegovina

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Koljani, Bosnia and Herzegovina

Average cloud cover in September - Koljani, Bosnia and Herzegovina
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in September
Koljani, Bosnia and Herzegovina

Average visibility in September - Koljani, Bosnia and Herzegovina
  • Average visibility in September: 9km

Months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
Months with the lowest visibility are January and February (7km).

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