September weather forecastTäby, Sweden
September
Weather in September
As September sets in, autumn graces Täby with its arrival, bringing a mix of mild and cold weather. The rapidly decreasing daylight hours from 15.5 hours in August to 12.8 imply the waning of summer and onset of cooler conditions. A noticeable drop in temperature also hints at the closing of summer. Frequent occurrences of drizzle and overcast skies lend a crisp freshness in the air. With the arrival of September, Täby experiences a pronounced shift in climate, with fall favorites replacing summer spectacles.Temperature
The arrival of September in Täby signals a subtle shift in temperature, down from an agreeable 20.7°C (69.3°F) in August to a comfortable 16.2°C (61.2°F). Täby encounters a steady low-temperature average of 9.5°C (49.1°F) throughout the month of September.Humidity
In September, the average relative humidity in Täby, Sweden, is 80%.Rainfall
In Täby, in September, it is raining for 10.2 days, with typically 14mm (0.55") of accumulated precipitation. In Täby, during the entire year, the rain falls for 113.4 days and collects up to 209mm (8.23") of precipitation.Snowfall
In Täby, snow does not fall in June through September.Daylight
In September, the average length of the day in Täby is 12h and 50min.On the first day of September in Täby, Sweden, sunrise is at 05:45 and sunset at 19:49. On the last day of the month, sunrise is at 06:51 and sunset at 18:23 CEST.
Sunshine
The average sunshine in September in Täby, Sweden, is 7.8h.UV index
The average daily maximum UV index in September in Täby is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Täby, Sweden
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Täby, Sweden
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Täby, Sweden
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest months (with the lowest average wind speed) are July and August (12.1km/h).
Average humidity in September
Täby, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Täby, Sweden
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is July (29mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in September
Täby, Sweden
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is August (13.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Täby, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (50mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Täby, Sweden
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Täby, Sweden
- Average daylight in September: 12h and 48min
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 12min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Täby, Sweden
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is April (17.5 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in September
Täby, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Täby, Sweden
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Täby, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
