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 average high-temperature drops in September, from August's enjoyable 19.4°C (66.9°F) to a moderate 13.4°C (56.1°F). An average low-temperature of 7.3°C (45.1°F) is recorded during the nights in September.Humidity
The average relative humidity in September in Tohmajärvi is 85%.Rainfall
In September, the rain falls for 16.6 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, there are 135 rainfall days, and 525mm (20.67") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 1mm (0.04") of snow. In Tohmajärvi, during the entire year, snow falls for 126.8 days and aggregates up to 1509mm (59.41") of snow.Daylight
In September, the average length of the day is 12h and 57min.On the first day of the month, sunrise is at 05:48 and sunset at 20:08. On the last day of September, sunrise is at 07:04 and sunset at 18:32 EEST.
Sunshine
In Tohmajärvi, the average sunshine in September is 5.5h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in September interprets into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Tohmajärvi in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Tohmajärvi have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Tohmajärvi, Finland
- Average high temperature in September: 13.4°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-6.4°C).
- Average low temperature in September: 7.3°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-10.8°C).
Average pressure in September
Tohmajärvi, Finland
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).
Average wind speed in September
Tohmajärvi, Finland
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (12.3km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).
Average humidity in September
Tohmajärvi, Finland
- Average humidity in September: 85%
The month with the highest relative humidity is February (96%).
The months with the lowest relative humidity are May and June (68%).
Average rainfall in September
Tohmajärvi, Finland
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Tohmajärvi, Finland
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Tohmajärvi, Finland
- Average snowfall in September: 1mm
The month with the highest snowfall is December (302mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Tohmajärvi, Finland
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (23.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Tohmajärvi, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in September: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 1h and 6min).
Average sunshine days in September
Tohmajärvi, Finland
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Tohmajärvi, Finland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Tohmajärvi, Finland
- Average cloud cover in September: 61
The month with the most cloud cover is February (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Tohmajärvi, Finland
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
