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 arrival of September indicates a decrease in the average high-temperature, moving from a pleasant 21.7°C (71.1°F) in August to a refreshing 15.2°C (59.4°F). An average temperature of 7.3°C (45.1°F) marks the nights in September.Humidity
In Udomlya, the average relative humidity in September is 83%.Rainfall
In September, the rain falls for 14.1 days. Throughout September, 33mm (1.3") of precipitation is accumulated. In Udomlya, during the entire year, the rain falls for 125.7 days and collects up to 460mm (18.11") of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 98.3 snowfall days, and 879mm (34.61") of snow is accumulated.Daylight
In Udomlya, the average length of the day in September is 12h and 48min.On the first day of the month, sunrise is at 05:41 and sunset at 19:38. On the last day of September, in Udomlya, sunrise is at 06:42 and sunset at 18:16 MSK.
Sunshine
In September, the average sunshine is 5.9h.UV index
In Udomlya, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 2 leads to the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Udomlya have in September?
How high is the UV index in September?
Average temperature in September
Udomlya, Russia
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (-6°C).
- Average low temperature in September: 7.3°C
The month with the highest average low temperature is July (12.7°C).
The coldest month (with the lowest average low temperature) is January (-10.3°C).
Average pressure in September
Udomlya, Russia
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is November (1016.9mbar).
The month with the lowest atmospheric pressure is July (1011.5mbar).
Average wind speed in September
Udomlya, Russia
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in September
Udomlya, Russia
- Average humidity in September: 83%
The months with the highest relative humidity are January and February (95%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in September
Udomlya, Russia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is February (21mm).
Average rainfall days in September
Udomlya, Russia
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in September
Udomlya, Russia
- Average snowfall in September: 1mm
The month with the highest snowfall is January (183mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Udomlya, Russia
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Udomlya, Russia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 5h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 1h and 0min).
Average sunshine days in September
Udomlya, Russia
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (9 days).
Average UV index in September
Udomlya, Russia
- Average UV index in September: 2
The months with the highest UV index are June and 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
Udomlya, Russia
- Average cloud cover in September: 59
The month with the most cloud cover is January (Cloud cover 88).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Udomlya, Russia
- Average visibility in September: 8km
The months with the highest visibility are May, June and August (9km).
The month with the lowest visibility is February (5km).
