September weather forecastLomma, Sweden
September
Weather in September
September, the first month of the autumn in Lomma, is also an enjoyable month, with an average temperature varying between 17°C (62.6°F) and 12.4°C (54.3°F).Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a pleasant 20.8°C (69.4°F) in August to a refreshing 17°C (62.6°F). In Lomma, September nights maintain a consistent temperature, with an average low of 12.4°C (54.3°F).Humidity
In September, the average relative humidity in Lomma is 78%.Rainfall
In Lomma, in September, during 15.4 rainfall days, 41mm (1.61") of precipitation is typically accumulated. Throughout the year, in Lomma, Sweden, there are 176.8 rainfall days, and 433mm (17.05") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Sea temperature
In Lomma, the average seawater temperature in September is 16.3°C (61.3°F).Note: The majority of people find swimming in 16.3°C (61.3°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.
Daylight
The average length of the day in September is 12h and 44min.On the first day of September, sunrise is at 06:13 and sunset at 20:01. On the last day of the month, sunrise is at 07:09 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In Lomma, Sweden, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lomma, Sweden
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is August (20.8°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 12.4°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (-0.4°C).
Average pressure in September
Lomma, Sweden
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in September
Lomma, Sweden
- Average wind speed in September: 17.2km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).
Average humidity in September
Lomma, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are April, May and June (74%).
Average rainfall in September
Lomma, Sweden
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is August (54mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Lomma, Sweden
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Lomma, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (38mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lomma, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in September
Lomma, Sweden
- Average sea temperature in September: 16.3°C
The best month for swimming (with the highest average sea temperature) is August (17.7°C).
The coldest month (with the lowest average sea temperature) is February (2.4°C).
Average daylight in September /
Average sunshine in September
Lomma, Sweden
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Lomma, Sweden
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is April (14.5 days).
The month with the least sunshine days is December (6.3 days).
Average UV index in September
Lomma, Sweden
- 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 January (UV index 1).
Average cloud cover in September
Lomma, Sweden
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Lomma, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, May, October, November and December (9km).
