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
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a comfortable 19.2°C (66.6°F) to a moderate 14.8°C (58.6°F). In Kyminlinna, September's low temperatures hover around a cool 11.2°C (52.2°F), reflecting a minor decrease from the daytime highs.Humidity
The average relative humidity in September is 78%.Rainfall
In September, in Kyminlinna, Finland, the rain falls for 16.4 days. Throughout September, 50mm (1.97") of precipitation is accumulated. In Kyminlinna, during the entire year, the rain falls for 158.3 days and collects up to 569mm (22.4") of precipitation.Snowfall
In Kyminlinna, snow does not fall in June through September.Daylight
The average length of the day in September in Kyminlinna is 12h and 53min.On the first day of September in Kyminlinna, Finland, sunrise is at 06:07 and sunset at 20:17. On the last day of the month, sunrise is at 07:17 and sunset at 18:47 EEST.
Sunshine
In Kyminlinna, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index in Kyminlinna is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Undertake protective steps - Preventing sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are September temperatures in Kyminlinna?
What is the average humidity in September in Kyminlinna?
How much does it rain in Kyminlinna in September?
When it does not snow in Kyminlinna?
Does it snow in Kyminlinna in September?
What is the average length of the day in September in Kyminlinna?
When is the sunrise / sunset in September in Kyminlinna?
How many hours of sunshine does Kyminlinna have in September?
How high is the UV index in September in Kyminlinna?
Average temperature in September
Kyminlinna, Finland
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is February (-2.7°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is July (15.1°C).
The coldest month (with the lowest average low temperature) is February (-6.3°C).
Average pressure in September
Kyminlinna, Finland
- Average pressure in September: 1013.5mbar
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
Kyminlinna, Finland
- Average wind speed in September: 18.8km/h
The windiest month (with the highest average wind speed) is December (23.7km/h).
The calmest month (with the lowest average wind speed) is July (15.5km/h).
Average humidity in September
Kyminlinna, Finland
- Average humidity in September: 78%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Kyminlinna, Finland
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is August (67mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Kyminlinna, Finland
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is October (17.6 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Kyminlinna, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (148mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kyminlinna, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kyminlinna, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Kyminlinna, Finland
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is May (15.2 days).
The month with the least sunshine days is December (6.4 days).
Average UV index in September
Kyminlinna, Finland
- 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, February, March, November and December (UV index 1).
Average cloud cover in September
Kyminlinna, Finland
- Average cloud cover in September: 48
The months with the most cloud cover are January and December (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Kyminlinna, Finland
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
Kyminlinna, Finland
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