September weather forecast
Trebovljani, Bosnia and Herzegovina

September

Weather in September

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

Temperature

The onset of September brings a small change in high-temperatures, falling from a warm 27.5°C (81.5°F) in August to an agreeable 21.8°C (71.2°F). Trebovljani, in September, observes a steady average low-temperature of 9.9°C (49.8°F).

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Trebovljani, during September, the rain falls for 13.1 days and regularly aggregates up to 45mm (1.77") of precipitation. In Trebovljani, during the entire year, the rain falls for 160.4 days and collects up to 665mm (26.18") of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Trebovljani, the average length of the day in September is 12h and 32min.
On the first day of the month, sunrise is at 06:14 and sunset at 19:28. On the last day of September, sunrise is at 06:48 and sunset at 18:33 CEST.

Sunshine

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

UV index

In Trebovljani, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 4 during September translates into the following guidance:
Take precautions - Protection against sun damage is advised. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What are the temperatures in Trebovljani in September?
The high-temperature, in September, in Trebovljani, is 21.8°C (71.2°F), while the low-temperature averages to 9.9°C (49.8°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is calculated to be 29°C (84.2°F).
What is the average humidity in September in Trebovljani?
In September, the average relative humidity is 73%.
How many days does it rain in September in Trebovljani?
In Trebovljani, in September, during 13.1 rainfall days, 45mm (1.77") of precipitation is typically accumulated.
When it does not snow in Trebovljani?
In Trebovljani, snow does not fall in May through September.
Does it snow in Trebovljani in September?
In Trebovljani, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Trebovljani?
In Trebovljani, the average day length in September is 12h and 32min.
When is the sunrise / sunset in September in Trebovljani?
On the first day of September in Trebovljani, Bosnia and Herzegovina, sunrise is at 06:14 and sunset at 19:28. On the last day of the month, sunrise is at 06:48 and sunset at 18:33 CEST.
How long on average sun shines in September in Trebovljani?
In Trebovljani, Bosnia and Herzegovina, the average sunshine duration in September is 9.1h.
How high is the UV index in September in Trebovljani?
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Trebovljani, 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).

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

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

Average wind speed in September
Trebovljani, 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).

Average humidity in September
Trebovljani, 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%).

Average rainfall in September
Trebovljani, 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).

Average rainfall days in September
Trebovljani, 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).

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

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

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

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

Average daylight in September /
Average sunshine in September
Trebovljani, Bosnia and Herzegovina
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in September
Trebovljani, 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).

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

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

Average cloud cover in September
Trebovljani, 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).

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

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

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