September weather forecastKostrovo, Russia
September weather forecast for Kostrovo, Russia: The first month of the autumn, September, is also a moderate month in Kostrovo, Russia, with an average temperature varying between 15.5°C (59.9°F) and 7.7°C (45.9°F). In September, on the first day of the month, sunrise is at 05:38 and sunset at 19:27.
September
Weather in September
The first month of the autumn, September, is also a moderate month in Kostrovo, Russia, with an average temperature varying between 15.5°C (59.9°F) and 7.7°C (45.9°F).Temperature
As Kostrovo enters September, the average high-temperature decreases from the an agreeable 22.6°C (72.7°F) of August to a mild 15.5°C (59.9°F). Throughout September, the temperature tends to fall to a consistent average low of 7.7°C (45.9°F).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 14.9 days. Throughout September, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 141.8 rainfall days, and 476mm (18.74") of precipitation is accumulated.Snowfall
In Kostrovo, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 45min.On the first day of September, sunrise is at 05:38 and sunset at 19:27. On the last day of the month, sunrise is at 06:35 and sunset at 18:11 MSK.
Sunshine
The average sunshine in September is 6.7h.UV index
In Kostrovo, Russia, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kostrovo, Russia
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (23.8°C).
The month with the lowest average high temperature is January (-6.2°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is January (-11°C).
Average pressure in September
Kostrovo, Russia
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is November (1018.8mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).
Average wind speed in September
Kostrovo, Russia
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in September
Kostrovo, Russia
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (95%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in September
Kostrovo, Russia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is July (68mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Kostrovo, Russia
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Kostrovo, Russia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (177mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kostrovo, Russia
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Kostrovo, Russia
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Kostrovo, Russia
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is August (12.9 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in September
Kostrovo, Russia
- Average UV index in September: 3
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
Kostrovo, Russia
- Average cloud cover in September: 54
The month with the most cloud cover is January (Cloud cover 87).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Kostrovo, Russia
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is January (5km).
