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
September's arrival coincides with a drop in the average high-temperature, decreasing from August's warm 25.1°C (77.2°F) to an enjoyable 19.5°C (67.1°F). September nights in Jamna observe an average temperature dip to a cool 10.1°C (50.2°F).Humidity
In Jamna, the average relative humidity in September is 81%.Rainfall
In Jamna, during September, the rain falls for 14.5 days and regularly aggregates up to 77mm (3.03") of precipitation. Throughout the year, there are 188.4 rainfall days, and 935mm (36.81") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Jamna is 12h and 33min.On the first day of the month, sunrise is at 06:16 and sunset at 19:34. On the last day of September, in Jamna, Slovenia, sunrise is at 06:53 and sunset at 18:37 CEST.
Sunshine
In Jamna, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What are September temperatures in Jamna?
What is the average humidity in September in Jamna?
How much does it rain in Jamna in September?
When it does not snow in Jamna?
Does it snow in Jamna in September?
What is the average length of the day in September in Jamna?
What time are sunrise and sunset in September in Jamna?
How long on average sun shines in September in Jamna?
How high is the UV index in September in Jamna?
Average temperature in September
Jamna, Slovenia
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (2.5°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 (-3.1°C).
Average pressure in September
Jamna, Slovenia
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The months with the lowest atmospheric pressure are May and June (1015.1mbar).
Average wind speed in September
Jamna, Slovenia
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Jamna, Slovenia
- Average humidity in September: 81%
The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Jamna, Slovenia
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is May (139mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Jamna, Slovenia
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (24 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in September
Jamna, Slovenia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (210mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Jamna, Slovenia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 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
Jamna, Slovenia
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Jamna, Slovenia
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (4.2 days).
Average UV index in September
Jamna, Slovenia
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Jamna, Slovenia
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Jamna, Slovenia
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The month with the lowest visibility is January (7km).
Jamna, Slovenia
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