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
The shift from August to September coincides with a small decrease in the average high-temperature, down to a mild 15.3°C (59.5°F) from an enjoyable 19°C (66.2°F). Mörtviken, in September, registers an average low temperature of 11.2°C (52.2°F), showing a minute reduction from daily highs.Humidity
In September, the average relative humidity in Mörtviken is 80%.Rainfall
In Mörtviken, in September, it is raining for 8.6 days, with typically 11mm (0.43") of accumulated precipitation. In Mörtviken, during the entire year, the rain falls for 88.9 days and collects up to 116mm (4.57") of precipitation.Snowfall
In Mörtviken, snow does not fall in June through September.Daylight
In September, the average length of the day in Mörtviken is 12h and 50min.On the first day of the month, sunrise is at 05:44 and sunset at 19:47. On the last day of September, in Mörtviken, Sweden, sunrise is at 06:50 and sunset at 18:21 CEST.
Sunshine
In Mörtviken, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 3 transforms into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the temperature in September in Mörtviken?
What is the average humidity in September in Mörtviken?
How many days does it rain in September in Mörtviken?
When it does not snow in Mörtviken?
Does it snow in Mörtviken in September?
How many hours of daylight does Mörtviken have in September?
When is the sunrise / sunset in September in Mörtviken?
How long on average sun shines in September in Mörtviken?
What is the UV index intensity in September in Mörtviken?
Average temperature in September
Mörtviken, Sweden
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (19.5°C).
The month with the lowest average high temperature is February (0.3°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (-2.3°C).
Average pressure in September
Mörtviken, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in September
Mörtviken, Sweden
- Average wind speed in September: 18.1km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Mörtviken, Sweden
- Average humidity in September: 80%
The month with the highest relative humidity is November (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Mörtviken, Sweden
- Average rainfall in September: 11mm
The wettest months (with the highest rainfall) are July and August (14mm).
The driest month (with the least rainfall) is April (4mm).
Average rainfall days in September
Mörtviken, Sweden
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is August (10.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Mörtviken, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mörtviken, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mörtviken, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Mörtviken, Sweden
- Average sunshine days in September: 17.7 days
The months with the most sunshine days are April and May (21.8 days).
The month with the least sunshine days is December (14.4 days).
Average UV index in September
Mörtviken, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Mörtviken, Sweden
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mörtviken, 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).
Mörtviken, Sweden
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