September weather forecastTimrå, Sweden
September
Weather in September
September, the first month of the autumn in Timrå, is still a mild month, with an average temperature varying between 7.3°C (45.1°F) and 14°C (57.2°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from 18.7°C (65.7°F) in August to a still refreshing 14°C (57.2°F). Timrå throughout September, experiences an average nighttime temperature of 7.3°C (45.1°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 11.7 days. Throughout September, 32mm (1.26") of precipitation is accumulated. In Timrå, during the entire year, the rain falls for 117.2 days and collects up to 384mm (15.12") of precipitation.Snowfall
June through September are months without snowfall.Sea temperature
In September, the average sea temperature in Timrå, Sweden, is 12.7°C (54.9°F).Note: It is advised against swimming in 12.7°C (54.9°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
In Timrå, the average length of the day in September is 12h and 57min.On the first day of September in Timrå, sunrise is at 05:40 and sunset at 20:00. On the last day of the month, sunrise is at 06:56 and sunset at 18:24 CEST.
Sunshine
In September, the average sunshine is 7.6h.UV index
In Timrå, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Timrå, Sweden
- Average high temperature in September: 14°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in September: 7.3°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.9°C).
Average pressure in September
Timrå, Sweden
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).
Average wind speed in September
Timrå, Sweden
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is January (11.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in September
Timrå, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Timrå, Sweden
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Timrå, Sweden
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Timrå, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (217mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Timrå, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Timrå, Sweden
- Average sea temperature in September: 12.7°C
The best month for swimming (with the highest average sea temperature) is August (17.2°C).
The coldest month (with the lowest average sea temperature) is February (0.2°C).
Average daylight in September /
Average sunshine in September
Timrå, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Timrå, Sweden
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in September
Timrå, 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, February, November and December (UV index 1).
Average cloud cover in September
Timrå, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Timrå, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).
