September weather forecastValaam, Russia
September
Weather in September
The first month of the autumn, September, is also a moderate month in Valaam, Russia, with an average temperature fluctuating between 11.1°C (52°F) and 14°C (57.2°F).Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's refreshing 18°C (64.4°F) to a mild 14°C (57.2°F). Consistently, Valaam reports average nighttime temperatures of 11.1°C (52°F) during September, a marginal step down from its daytime highs.Humidity
The average relative humidity in September is 80%.Rainfall
In Valaam, Russia, during September, the rain falls for 15.2 days and regularly aggregates up to 41mm (1.61") of precipitation. In Valaam, during the entire year, the rain falls for 134.4 days and collects up to 468mm (18.43") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 55min.On the first day of September, sunrise is at 05:48 and sunset at 20:03. On the last day of the month, sunrise is at 07:01 and sunset at 18:30 MSK.
Sunshine
The average sunshine in September is 6.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valaam, Russia
- Average high temperature in September: 14°C
The warmest month (with the highest average high temperature) is August (18°C).
The months with the lowest average high temperature are January and February (-3°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (-6.3°C).
Average pressure in September
Valaam, Russia
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Valaam, Russia
- Average wind speed in September: 21.6km/h
The windiest month (with the highest average wind speed) is December (27.6km/h).
The calmest month (with the lowest average wind speed) is July (16.1km/h).
Average humidity in September
Valaam, Russia
- Average humidity in September: 80%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Valaam, Russia
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is August (64mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Valaam, Russia
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is August (16.4 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Valaam, Russia
- Average snowfall in September: 0mm
The month with the highest snowfall is March (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Valaam, Russia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valaam, Russia
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in September
Valaam, Russia
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is May (17.1 days).
The month with the least sunshine days is December (7.7 days).
Average UV index in September
Valaam, Russia
- 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
Valaam, Russia
- Average cloud cover in September: 52
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in September
Valaam, Russia
- 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 and December (8km).
