September weather forecastMönsterås, Sweden
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Mönsterås, Sweden, with an average temperature varying between 16.5°C (61.7°F) and 11.1°C (52°F).Temperature
During the shift to September, Mönsterås records a mild decrease in average high-temperature, moving from an agreeable 20.8°C (69.4°F) in August to a comfortable 16.5°C (61.7°F). Nighttime temperature dips to a mean of 11.1°C (52°F) during September.Humidity
In Mönsterås, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 9 days. Throughout September, 14mm (0.55") of precipitation is accumulated. In Mönsterås, during the entire year, the rain falls for 117.5 days and collects up to 269mm (10.59") of precipitation.Snowfall
In Mönsterås, snow does not fall in June through September.Sea temperature
In September, the average sea temperature is 15.8°C (60.4°F).Note: Most people do not enjoy swimming in water that is 15.8°C (60.4°F). Breathing becomes increasingly challenging as the water temperature dips under 21°C (69.8°F).
Daylight
In September, the average length of the day is 12h and 46min.On the first day of September, sunrise is at 05:57 and sunset at 19:50. On the last day of the month, sunrise is at 06:56 and sunset at 18:31 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mönsterås, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in September: 11.1°C
The months with the highest average low temperature are July and August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).
Average pressure in September
Mönsterås, Sweden
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in September
Mönsterås, Sweden
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are May and August (14km/h).
Average humidity in September
Mönsterås, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are February, November and December (86%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Mönsterås, Sweden
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Mönsterås, Sweden
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Mönsterås, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (82mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mönsterås, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Mönsterås, Sweden
- Average sea temperature in September: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (18.6°C).
The coldest month (with the lowest average sea temperature) is March (1.8°C).
Average daylight in September /
Average sunshine in September
Mönsterås, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).
Average sunshine days in September
Mönsterås, Sweden
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is April (18.7 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in September
Mönsterås, Sweden
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Mönsterås, Sweden
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mönsterås, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).





