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
September
Weather in September
Temperature
The shift from August to September in Tjudö includes a small decrease in the average high-temperature, from a refreshing 17.6°C (63.7°F) to a moderate 14.6°C (58.3°F). Tjudö records a slight downturn in temperature to an average of 12.4°C (54.3°F) during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Tjudö, Finland, during September, the rain falls for 13.3 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Tjudö, there are 117 rainfall days, and 276mm (10.87") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Tjudö.Daylight
The average length of the day in September is 12h and 52min.On the first day of September in Tjudö, sunrise is at 06:35 and sunset at 20:44. On the last day of the month, sunrise is at 07:44 and sunset at 19:15 EEST.
Sunshine
The average sunshine in September is 7.8h.UV index
In Tjudö, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Tjudö in September?
What is the average humidity in September in Tjudö?
How much does it rain in Tjudö in September?
When it does not snow in Tjudö?
Does it snow in Tjudö in September?
How many hours of daylight does Tjudö have in September?
When are sunrise and sunset in September in Tjudö?
How many hours of sunshine does Tjudö have in September?
How high is the UV index in September in Tjudö?
Average temperature in September
Tjudö, Finland
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in September: 12.4°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (-1.5°C).
Average pressure in September
Tjudö, Finland
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed in September
Tjudö, Finland
- Average wind speed in September: 25.3km/h
The windiest month (with the highest average wind speed) is December (31.7km/h).
The calmest month (with the lowest average wind speed) is July (20km/h).
Average humidity in September
Tjudö, Finland
- Average humidity in September: 79%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and October (78%).
Average rainfall in September
Tjudö, Finland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is October (32mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Tjudö, Finland
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Tjudö, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Tjudö, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tjudö, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in September
Tjudö, Finland
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is May (20.5 days).
The month with the least sunshine days is December (11 days).
Average UV index in September
Tjudö, Finland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and March (UV index 1).
Average cloud cover in September
Tjudö, Finland
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Tjudö, Finland
- 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).
