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
The onset of September results in a decrease in the average high-temperature, receding from a comfortable 19.8°C (67.6°F) in August to a still refreshing 13.1°C (55.6°F). In Kotlas, the average low-temperature during the month of September is a chilly 6.1°C (43°F).Humidity
In Kotlas, the average relative humidity in September is 83%.Rainfall
In Kotlas, in September, during 13.9 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, there are 109.1 rainfall days, and 391mm (15.39") of precipitation is accumulated.Snowfall
Months with snowfall in Kotlas, Russia, are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.9 snowfall days, it receives 7mm (0.28") of snow. In Kotlas, Russia, during the entire year, snow falls for 121.5 days and aggregates up to 1063mm (41.85") of snow.Daylight
In Kotlas, the average length of the day in September is 12h and 55min.On the first day of September in Kotlas, sunrise is at 04:46 and sunset at 19:00. On the last day of the month, sunrise is at 05:58 and sunset at 17:27 MSK.
Sunshine
In Kotlas, the average sunshine in September is 5.7h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average September temperature in Kotlas?
What is the average humidity in September in Kotlas?
How much does it rain in Kotlas in September?
When does it start to snow in Kotlas?
What is the average length of the day in September in Kotlas?
When is the sunrise / sunset in September in Kotlas?
How long on average sun shines in September in Kotlas?
What is the UV index reading in September in Kotlas?
Average temperature in September
Kotlas, Russia
- Average high temperature in September: 13.1°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 (-9.9°C).
- Average low temperature in September: 6.1°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-15.1°C).
Average pressure in September
Kotlas, Russia
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is February (1017.5mbar).
The month with the lowest atmospheric pressure is June (1011.2mbar).
Average wind speed in September
Kotlas, Russia
- Average wind speed in September: 9.7km/h
The windiest months (with the highest average wind speed) are October, November and December (11.2km/h).
The calmest month (with the lowest average wind speed) is July (8.7km/h).
Average humidity in September
Kotlas, Russia
- Average humidity in September: 83%
The months with the highest relative humidity are January and February (97%).
The month with the lowest relative humidity is May (65%).
Average rainfall in September
Kotlas, Russia
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is July (53mm).
The driest months (with the least rainfall) are January and February (21mm).
Average rainfall days in September
Kotlas, Russia
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (0.6 days).
Average snowfall in September
Kotlas, Russia
- Average snowfall in September: 7mm
The month with the highest snowfall is December (212mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Kotlas, Russia
- Average snowfall days in September: 0.9 days
The month with the highest number of snowfall days is March (21.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Kotlas, Russia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).
Average sunshine days in September
Kotlas, Russia
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is May (15.4 days).
The month with the least sunshine days is March (10.1 days).
Average UV index in September
Kotlas, Russia
- Average UV index in September: 2
The month with the highest UV index is 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
Kotlas, Russia
- Average cloud cover in September: 64
The month with the most cloud cover is February (Cloud cover 90).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Kotlas, Russia
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (4km).
Kotlas, Russia
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