September weather forecastMarjaniemi, Finland
September weather for Marjaniemi, Finland: September, the first month of the autumn in Marjaniemi, is also a moderate month, with an average temperature varying between 11°C (51.8°F) and 15.1°C (59.2°F). Marjaniemi experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 19.6°C (67.3°F) in August to a still refreshing 15.1°C (59.2°F).
September
Weather in September
September, the first month of the autumn in Marjaniemi, is also a moderate month, with an average temperature varying between 11°C (51.8°F) and 15.1°C (59.2°F).Temperature
Marjaniemi experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 19.6°C (67.3°F) in August to a still refreshing 15.1°C (59.2°F). Nighttime temperatures during September report a consistent average of 11°C (51.8°F).Humidity
In September, the average relative humidity in Marjaniemi is 79%.Rainfall
In Marjaniemi, during September, the rain falls for 13.5 days and regularly aggregates up to 34mm (1.34") of precipitation. In Marjaniemi, during the entire year, the rain falls for 144.6 days and collects up to 465mm (18.31") of precipitation.Snowfall
In Marjaniemi, snow does not fall in June through September.Daylight
In Marjaniemi, the average length of the day in September is 12h and 52min.On the first day of September in Marjaniemi, sunrise is at 06:15 and sunset at 20:23. On the last day of the month, sunrise is at 07:24 and sunset at 18:54 EEST.
Sunshine
In Marjaniemi, the average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September in Marjaniemi is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marjaniemi, Finland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.2°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is July (14.5°C).
The coldest months (with the lowest average low temperature) are January and February (-5.5°C).
Average pressure in September
Marjaniemi, Finland
- 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 (1008.6mbar).
Average wind speed in September
Marjaniemi, Finland
- Average wind speed in September: 17km/h
The windiest month (with the highest average wind speed) is December (21.1km/h).
The calmest month (with the lowest average wind speed) is May (13.7km/h).
Average humidity in September
Marjaniemi, Finland
- Average humidity in September: 79%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Marjaniemi, Finland
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Marjaniemi, Finland
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Marjaniemi, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (159mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Marjaniemi, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marjaniemi, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 7h and 30min
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
Marjaniemi, Finland
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is May (17 days).
The month with the least sunshine days is December (5.6 days).
Average UV index in September
Marjaniemi, 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
Marjaniemi, Finland
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Marjaniemi, Finland
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and December (8km).
