September weather forecastRostoshi, Russia
September
Weather in September
September, the first month of the autumn in Rostoshi, is still a refreshing month, with an average temperature varying between 10.3°C (50.5°F) and 19.8°C (67.6°F).Temperature
In September, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 26.6°C (79.9°F) in August to a refreshing 19.8°C (67.6°F). September in Rostoshi witnesses an average low-temperature hovering around a fresh 10.3°C (50.5°F).Humidity
The average relative humidity in September is 62%.Rainfall
The months with the least rainfall in Rostoshi are September and November Rain falls for 8.3 days and accumulates 19mm (0.75") of rain.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows in Rostoshi. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Rostoshi, there are 63.5 snowfall days, and 626mm (24.65") of snow is accumulated.Daylight
The average length of the day in September in Rostoshi is 12h and 39min.On the first day of the month, sunrise is at 05:29 and sunset at 19:02. On the last day of September, sunrise is at 06:16 and sunset at 17:56 MSK.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rostoshi, Russia
- Average high temperature in September: 19.8°C
The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in September: 10.3°C
The month with the highest average low temperature is July (16°C).
The coldest month (with the lowest average low temperature) is January (-10.2°C).
Average pressure in September
Rostoshi, Russia
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is November (1022.2mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).
Average wind speed in September
Rostoshi, Russia
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is December (17.1km/h).
The calmest months (with the lowest average wind speed) are July and August (11.5km/h).
Average humidity in September
Rostoshi, Russia
- Average humidity in September: 62%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (58%).
Average rainfall in September
Rostoshi, Russia
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is May (51mm).
The driest months (with the least rainfall) are September and November (19mm).
Average rainfall days in September
Rostoshi, Russia
- Average rainfall days in September: 8.3 days
The months with the highest number of rainy days are May and June (14.8 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in September
Rostoshi, Russia
- Average snowfall in September: 1mm
The month with the highest snowfall is January (209mm).
The months with the least snowfall are May, June, July and August (0mm).
Average snowfall days in September
Rostoshi, Russia
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Rostoshi, Russia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 2h and 6min).
Average sunshine days in September
Rostoshi, Russia
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is September (20.9 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Rostoshi, Russia
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Rostoshi, Russia
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Rostoshi, Russia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (7km).





