September weather forecastOrlyane, Bulgaria

September

Weather in September

September, the first month of the autumn in Orlyane, is still a warm month, with an average temperature fluctuating between 23.5°C (74.3°F) and 12.5°C (54.5°F).

Temperature

The decrease of average high-temperatures is mild in September, with a decline from a moderately hot 28.5°C (83.3°F) in August to a still warm 23.5°C (74.3°F). Orlyane's average low-temperature in the month of September is recorded at a cool 12.5°C (54.5°F).

Humidity

The average relative humidity in September in Orlyane is 61%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.5 days and accumulates 31mm (1.22") of precipitation.

Snowfall

In Orlyane, Bulgaria, snow does not fall in May through September.

Daylight

In September, the average length of the day in Orlyane is 12h and 30min.
On the first day of the month, sunrise is at 06:46 and sunset at 19:56. On the last day of September, in Orlyane, sunrise is at 07:18 and sunset at 19:04 EEST.

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September in Orlyane is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Frequently asked questions

The high-temperature during September is 23.5°C (74.3°F) and the low-temperature is 12.5°C (54.5°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is computed to be 30°C (86°F).

In Orlyane, the average relative humidity in September is 61%.

The month with the least rainfall is September, when the rain falls for 9.5 days and typically collects 31mm (1.22") of precipitation.

In Orlyane, during September, the rain falls for 9.5 days and regularly aggregates up to 31mm (1.22") of precipitation.

In Orlyane, Bulgaria, snow does not fall in May through September.

In Orlyane, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length in Orlyane is 12h and 30min.

In September, on the first day of the month, sunrise is at 06:46 and sunset at 19:56. On the last day of the month, in Orlyane, sunrise is at 07:18 and sunset at 19:04 EEST.

The average sunshine duration in September is 9.7h.

In Orlyane, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Orlyane, Bulgaria

  • Average high temperature in September: 23.5°C

The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (3°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

Average pressure in September
Orlyane, Bulgaria

  • Average pressure in September: 1016.7mbar

The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in September
Orlyane, Bulgaria

  • Average wind speed in September: 8.3km/h

The windiest month (with the highest average wind speed) is March (10km/h).
The calmest month (with the lowest average wind speed) is November (7.7km/h).

Average humidity in September
Orlyane, Bulgaria

  • Average humidity in September: 61%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (57%).

Average rainfall in September
Orlyane, Bulgaria

  • Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is June (92mm).
The driest month (with the least rainfall) is September (31mm).

Average rainfall days in September
Orlyane, Bulgaria

  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in September
Orlyane, Bulgaria

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (181mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Orlyane, Bulgaria

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 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
Orlyane, Bulgaria

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 42min

The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Orlyane, Bulgaria

  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (8.5 days).

Average UV index in September
Orlyane, Bulgaria

  • Average UV index in September: 4

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

Average cloud cover in September
Orlyane, Bulgaria

  • Average cloud cover in September: 25

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in September
Orlyane, Bulgaria

  • Average visibility in September: 10km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).