September weather forecast
Moscow, Russia

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The Red Square with a close view of the St. Basil
The Red Square with a close view of the St. Basil's Cathedral building in Moscow, Russia

Weather in September

September in Moscow introduces the autumn season with cooler temperatures and shorter daylight hours. While September sees an average highest temperature of 15.7°C (60.3°F) and a lowest of 7.4°C (45.3°F), residents begin to feel the onset of cooler months ahead. The city experiences increased rainfall compared to August, with an average of 68mm (2.68") observed over 15 days. A city known for its beautifully landscaped parks and gardens, Moscow during the Autumn takes on a special character as leaves change color and create a mosaic of autumn hues.

Temperature

Onset of September comes with a temperature decline, the average high falling from an agreeable 21.9°C (71.4°F) in August to a refreshing 15.7°C (60.3°F). The nighttime temperature, during September, averages of 7.4°C (45.3°F).

Humidity

In September, the average relative humidity is 81%.

Rainfall

In September, the rain falls for 15 days. Throughout September, 68mm (2.68") of precipitation is accumulated. In Moscow, during the entire year, the rain falls for 105.5 days and collects up to 707mm (27.83") of precipitation.

Snowfall

January through May, September through December are months with snowfall in Moscow. September is the first month it typically snows in Moscow. Throughout September, there are 0.1 snowfall days. In Moscow, during the entire year, snow falls for 72.2 days.

Daylight

In September, the average length of the day is 12h and 44min.
On the first day of September in Moscow, sunrise is at 05:35 and sunset at 19:23. On the last day of the month, sunrise is at 06:31 and sunset at 18:07 MSK.

Sunshine

In Moscow, the average sunshine in September is 4.9h.

UV index

The average daily maximum UV index in September in Moscow is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 3 in September transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What are the temperatures in Moscow in September?

In September, in Moscow, the average high-temperature is 15.7°C (60.3°F), and the average low-temperature is 7.4°C (45.3°F).

What is the average humidity in September in Moscow?

In September, the average relative humidity is 81%.

How much does it rain in Moscow in September?

In Moscow, in September, during 15 rainfall days, 68mm (2.68") of precipitation is typically accumulated.

When does it start snowing in Moscow?

September is the first month it typically snows in Moscow, Russia. Throughout September, there are 0.1 snowfall days.

What is the average length of the day in September in Moscow?

The average day length in September in Moscow, Russia, is 12h and 44min.

What time are sunrise and sunset in September in Moscow?

In September, on the first day of the month, sunrise is at 05:35 and sunset at 19:23. On the last day of the month, in Moscow, Russia, sunrise is at 06:31 and sunset at 18:07 MSK.

How long on average sun shines in September in Moscow?

The average sunshine duration in September is 4.9h.

What is the UV index reading in September in Moscow?

In September, the average daily maximum UV index in Moscow is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Moscow, Russia

Average temperature in September - Moscow, Russia
  • Average high temperature in September: 15.7°C

The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-4°C).

  • Average low temperature in September: 7.4°C

The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is February (-9.8°C).

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Average humidity in September
Moscow, Russia

Average humidity in September - Moscow, Russia
  • Average humidity in September: 81%

The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is May (64%).

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Average rainfall in September
Moscow, Russia

Average rainfall in September - Moscow, Russia
  • Average rainfall in September: 68mm

The wettest month (with the highest rainfall) is July (85mm).
The driest month (with the least rainfall) is March (35mm).

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Average rainfall days in September
Moscow, Russia

Average rainfall days in September - Moscow, Russia
  • Average rainfall days in September: 15 days

The months with the highest number of rainy days are July, August and September (15 days).
The month with the least rainy days is February (0.7 days).

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Average snowfall days in September
Moscow, Russia

Average snowfall days in September - Moscow, Russia
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Moscow, Russia

Average daylight in September / Average sunshine in September - Moscow, Russia
  • Average daylight in September: 12h and 4min

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: 4h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).

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Average UV index in September
Moscow, Russia

Average UV index in September - Moscow, Russia
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).

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Moscow, Russia

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