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
September implies a soft temperature shift, with average high-temperatures reducing from August's refreshing 18.7°C (65.7°F) to a moderate 15.1°C (59.2°F). September in Finnhamn witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 11.5°C (52.7°F).Humidity
In Finnhamn, the average relative humidity in September is 80%.Rainfall
In Finnhamn, in September, during 11.6 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Finnhamn, during the entire year, the rain falls for 125.3 days and collects up to 261mm (10.28") of precipitation.Snowfall
June through September are months without snowfall in Finnhamn, Sweden.Daylight
The average length of the day in September in Finnhamn is 12h and 51min.On the first day of the month, sunrise is at 05:42 and sunset at 19:46. On the last day of September, in Finnhamn, sunrise is at 06:48 and sunset at 18:20 CEST.
Sunshine
In Finnhamn, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Be vigilant - Preventing sunburn is recommended. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Finnhamn in September?
What is the average humidity in September in Finnhamn?
How much does it rain in Finnhamn in September?
When it does not snow in Finnhamn?
Does it snow in Finnhamn in September?
What is the average length of the day in September in Finnhamn?
When are sunrise and sunset in September in Finnhamn?
How long on average sun shines in September in Finnhamn?
What is the UV index reading in September in Finnhamn?
Average temperature in September
Finnhamn, Sweden
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (18.9°C).
The months with the lowest average high temperature are January and February (0.4°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-2.2°C).
Average pressure in September
Finnhamn, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Finnhamn, Sweden
- Average wind speed in September: 18.9km/h
The windiest month (with the highest average wind speed) is December (24.7km/h).
The calmest month (with the lowest average wind speed) is July (15.8km/h).
Average humidity in September
Finnhamn, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (85%).
The months with the lowest relative humidity are April, May and June (77%).
Average rainfall in September
Finnhamn, Sweden
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Finnhamn, Sweden
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Finnhamn, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is December (41mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Finnhamn, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Finnhamn, Sweden
- Average daylight in September: 12h and 5min
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: 8h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Finnhamn, Sweden
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is May (17.9 days).
The month with the least sunshine days is December (11.7 days).
Average UV index in September
Finnhamn, Sweden
- 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 and February (UV index 1).
Average cloud cover in September
Finnhamn, Sweden
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Finnhamn, Sweden
- 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).
