Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Tirna's September weather shows a moderate shift in high-temperatures, falling from August's warm 26.1°C (79°F) to a pleasant 20.1°C (68.2°F). In September, Tirna's temperature tends to fall to an average low of 9.2°C (48.6°F) during the night.Humidity
In September, the average relative humidity is 81%.Rainfall
In Tirna, Slovenia, during September, the rain falls for 12.3 days and regularly aggregates up to 69mm (2.72") of precipitation. In Tirna, during the entire year, the rain falls for 149.6 days and collects up to 762mm (30") of precipitation.Snowfall
In Tirna, snow does not fall in May through September.Daylight
In Tirna, the average length of the day in September is 12h and 32min.On the first day of September in Tirna, sunrise is at 06:21 and sunset at 19:38. On the last day of the month, sunrise is at 06:58 and sunset at 18:42 CEST.
Sunshine
In September, the average sunshine in Tirna, Slovenia, is 9.1h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the average September temperature in Tirna?
What is the average humidity in September in Tirna?
How much does it rain in Tirna in September?
When it does not snow in Tirna?
Does it snow in Tirna in September?
What is the average length of the day in September in Tirna?
When is the sunrise / sunset in September in Tirna?
How many hours of sunshine does Tirna have in September?
What is the UV index reading in September in Tirna?
Average temperature in September
Tirna, Slovenia
- Average high temperature in September: 20.1°C
The warmest month (with the highest average high temperature) is July (26.2°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 9.2°C
The months with the highest average low temperature are July and August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Tirna, Slovenia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The months with the lowest atmospheric pressure are May and June (1014.9mbar).
Average wind speed in September
Tirna, Slovenia
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (7.9km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Tirna, Slovenia
- Average humidity in September: 81%
The month with the highest relative humidity is November (88%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Tirna, Slovenia
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is May (85mm).
The driest month (with the least rainfall) is April (42mm).
Average rainfall days in September
Tirna, Slovenia
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Tirna, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (172mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Tirna, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 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
Tirna, Slovenia
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Tirna, Slovenia
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in September
Tirna, Slovenia
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Tirna, Slovenia
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Tirna, Slovenia
- Average visibility in September: 8km
The months with the highest visibility are July and August (9km).
The months with the lowest visibility are January, February, October and November (7km).
Tirna, Slovenia
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