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 sea temperature 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
The onset of September in Kalmar, Sweden, brings a small shift in high-temperatures, falling from an agreeable 20.8°C (69.4°F) in August to a comfortable 16.7°C (62.1°F). During the month of September, the nighttime temperature falls to an average of 11.3°C (52.3°F).Humidity
In September, the average relative humidity in Kalmar is 78%.Rainfall
In Kalmar, in September, it is raining for 10.3 days, with typically 18mm (0.71") of accumulated precipitation. In Kalmar, during the entire year, the rain falls for 127.2 days and collects up to 299mm (11.77") of precipitation.Snowfall
June through September are months without snowfall.Sea temperature
In Kalmar, the average seawater temperature in September is 15.9°C (60.6°F).Note: The majority find it unenjoyable to swim in 15.9°C (60.6°F). Breathing becomes tougher as the water temperature descends under 21°C (69.8°F).
Daylight
In Kalmar, the average length of the day in September is 12h and 46min.On the first day of September, sunrise is at 05:58 and sunset at 19:50. On the last day of the month, sunrise is at 06:57 and sunset at 18:31 CEST.
Sunshine
In September, the average sunshine in Kalmar is 8.6h.UV index
In September, the average daily maximum UV index in Kalmar is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the average September temperature in Kalmar?
What is the average humidity in September in Kalmar?
How many days does it rain in September in Kalmar?
When it does not snow in Kalmar?
Does it snow in Kalmar in September?
What is the sea temperature in September in Kalmar?
What is the average length of the day in September in Kalmar?
What time are sunrise and sunset in September in Kalmar?
How long on average sun shines in September in Kalmar?
What is the UV index intensity in September in Kalmar?
Average temperature in September
Kalmar, Sweden
- Average high temperature in September: 16.7°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: 11.3°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in September
Kalmar, Sweden
- Average pressure in September: 1014.9mbar
The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in September
Kalmar, Sweden
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is May (14.1km/h).
Average humidity in September
Kalmar, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Kalmar, Sweden
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Kalmar, Sweden
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Kalmar, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (84mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kalmar, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Kalmar, Sweden
- Average sea temperature in September: 15.9°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).
Average daylight in September /
Average sunshine in September
Kalmar, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Kalmar, Sweden
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Kalmar, 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
Kalmar, Sweden
- Average cloud cover in September: 39
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 32).
Average visibility in September
Kalmar, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Kalmar, Sweden
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