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
September
Weather in September
Temperature
Retje's September weather features a mild decline in high-temperatures, reducing from a warm 25.3°C (77.5°F) in August to a refreshing 19.5°C (67.1°F). An average nighttime temperature of 10.1°C (50.2°F) is observed during September.Humidity
In September, the average relative humidity is 81%.Rainfall
In Retje, during September, the rain falls for 16.1 days and regularly aggregates up to 102mm (4.02") of precipitation. In Retje, Slovenia, during the entire year, the rain falls for 189.7 days and collects up to 1125mm (44.29") of precipitation.Snowfall
In Retje, Slovenia, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:23 and sunset at 19:39. On the last day of September, sunrise is at 06:59 and sunset at 18:43 CEST.
Sunshine
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index in Retje is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Retje?
What is the average humidity in September in Retje?
How many days does it rain in September in Retje?
When it does not snow in Retje?
Does it snow in Retje in September?
What is the average length of the day in September in Retje?
When is the sunrise / sunset in September in Retje?
How long on average sun shines in September in Retje?
What is the UV index reading in September in Retje?
Average temperature in September
Retje, Slovenia
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Retje, Slovenia
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The months with the lowest atmospheric pressure are May and June (1014.8mbar).
Average wind speed in September
Retje, Slovenia
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (9.7km/h).
The calmest months (with the lowest average wind speed) are July and August (7km/h).
Average humidity in September
Retje, Slovenia
- Average humidity in September: 81%
The month with the highest relative humidity is November (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Retje, Slovenia
- Average rainfall in September: 102mm
The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is April (70mm).
Average rainfall days in September
Retje, Slovenia
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is May (22.5 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Retje, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (273mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Retje, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Retje, 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 48min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 12min).
The months with the least sunshine are February and November (Average sunshine: 4h and 24min).
Average sunshine days in September
Retje, Slovenia
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.3 days).
Average UV index in September
Retje, 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, February, November and December (UV index 2).
Average cloud cover in September
Retje, Slovenia
- Average cloud cover in September: 37
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Retje, Slovenia
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
