September weather forecastHorn, Sweden
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Horn, Sweden, with an average temperature fluctuating between 16.4°C (61.5°F) and 8.6°C (47.5°F).Temperature
As September arrives, Horn's weather displays a minor decrease in high-temperatures, transitioning from August's agreeable 21.2°C (70.2°F) to an enjoyable 16.4°C (61.5°F). Throughout September, the average low-temperature records at a frosty 8.6°C (47.5°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 26mm (1.02") of precipitation is accumulated. Throughout the year, there are 144.3 rainfall days, and 407mm (16.02") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Horn.Daylight
The average length of the day in September in Horn, Sweden, is 12h and 48min.On the first day of the month, sunrise is at 05:58 and sunset at 19:54. On the last day of September, in Horn, sunrise is at 06:59 and sunset at 18:33 CEST.
Sunshine
In Horn, Sweden, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index in Horn is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 3 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Horn, Sweden
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (-0.1°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).
Average pressure in September
Horn, Sweden
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Horn, Sweden
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Horn, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Horn, Sweden
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Horn, Sweden
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Horn, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (151mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Horn, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Horn, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 2h and 54min).
Average sunshine days in September
Horn, Sweden
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Horn, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Horn, Sweden
- Average cloud cover in September: 51
The month with the most cloud cover is February (Cloud cover 72).
The months with the least cloud cover are June and August (Cloud cover 45).
Average visibility in September
Horn, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February and November (7km).
