September weather forecast
Omarska, Bosnia and Herzegovina

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Omarska, Bosnia and Herzegovina, with an average temperature fluctuating between 9.8°C (49.6°F) and 21.5°C (70.7°F).

Temperature

In September, the average high-temperature decreases from a warm 27.5°C (81.5°F) in August to an agreeable 21.5°C (70.7°F). During September, the temperature in Omarska tends to dip to an average of 9.8°C (49.6°F) at night.

Humidity

In September, the average relative humidity in Omarska is 73%.

Rainfall

In Omarska, during September, the rain falls for 13.2 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Omarska, there are 160.5 rainfall days, and 664mm (26.14") of precipitation is accumulated.

Snowfall

In Omarska, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 06:14 and sunset at 19:29. On the last day of the month, sunrise is at 06:49 and sunset at 18:34 CEST.

Sunshine

In September, the average sunshine in Omarska is 9.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

What is the usual temperature for Omarska in September?
Omarska in September has an average high-temperature of 21.5°C (70.7°F) and an average low-temperature of 9.8°C (49.6°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 29°C (84.2°F).
What is the average humidity in September in Omarska?
The average relative humidity in September in Omarska is 73%.
How much does it rain in Omarska in September?
In September, the rain falls for 13.2 days. Throughout September, 44mm (1.73") of precipitation is accumulated.
When it does not snow in Omarska?
In Omarska, Bosnia and Herzegovina, snow does not fall in May through September.
Does it snow in Omarska in September?
In Omarska, Bosnia and Herzegovina, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Omarska have in September?
In Omarska, the average day length in September is 12h and 31min.
When is the sunrise / sunset in September in Omarska?
On the first day of September in Omarska, Bosnia and Herzegovina, sunrise is at 06:14 and sunset at 19:29. On the last day of the month, sunrise is at 06:49 and sunset at 18:34 CEST.
How long on average sun shines in September in Omarska?
The average sunshine duration in September in Omarska is 9.2h.
How high is the UV index in September in Omarska?
In September, the average daily maximum UV index in Omarska, Bosnia and Herzegovina, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Omarska, Bosnia and Herzegovina
  • Average high temperature in September: 21.5°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: 9.8°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
Omarska, Bosnia and Herzegovina
  • Average pressure in September: 1017.3mbar

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
Omarska, 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
Omarska, 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
Omarska, Bosnia and Herzegovina
  • Average rainfall in September: 44mm

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
Omarska, Bosnia and Herzegovina
  • Average rainfall days in September: 13.2 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
Omarska, 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
Omarska, 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
Omarska, Bosnia and Herzegovina
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
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
Omarska, Bosnia and Herzegovina
  • Average sunshine days in September: 15.5 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
Omarska, 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
Omarska, 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
Omarska, 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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