October weather forecast
Irkutsk, Russia

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Weather in October

Compared to September, October observes a significant drop in temperatures to an average of 6.4°C (43.5°F). As the grip of autumn tightens, the leaves shed their hue and winter starts faintly buzzing in the background. While hiking trips, lake visits, and picnics continue during the early part of the month, preparations for the approaching winter start becoming evident. The city's appeal, characterized by a quieter ambiance and fewer tourists, provides a calming contrast to the earlier bustling summer. The chill in the atmosphere becomes more prevalent as November arrives, steering Irkutsk towards winter.

Temperature

The shift from September to October in Irkutsk, Russia, sees a distinct decrease in the average high-temperature, dropping from a moderate 14.9°C (58.8°F) to a frosty 6.4°C (43.5°F). An average temperature of -2.6°C (27.3°F) is recorded in Irkutsk during the nights in October.

Humidity

In Irkutsk, Russia, the average relative humidity in October is 71%.

Rainfall

In Irkutsk, during October, the rain falls for 5.5 days and regularly aggregates up to 14mm (0.55") of precipitation. In Irkutsk, during the entire year, the rain falls for 102.6 days and collects up to 310mm (12.2") of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In October, it is snowing for 7.4 days. Throughout October, 67mm (2.64") of snow is accumulated. In Irkutsk, during the entire year, snow falls for 96.3 days and aggregates up to 621mm (24.45") of snow.

Daylight

In Irkutsk, the average length of the day in October is 10h and 38min.
On the first day of October, sunrise is at 07:04 and sunset at 18:40. On the last day of the month, sunrise is at 07:57 and sunset at 17:35 +08.

Sunshine

In Irkutsk, Russia, the average sunshine in October is 6.8h.

UV index

In October, the average daily maximum UV index in Irkutsk is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In October, a daily UV index of 2 turns into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is October in Irkutsk?

An average high-temperature, in October, in Irkutsk, is 6.4°C (43.5°F) and the average low-temperature is -2.6°C (27.3°F).

What is the average humidity in October in Irkutsk?

In Irkutsk, Russia, the average relative humidity in October is 71%.

How many days does it rain in October in Irkutsk?

In Irkutsk, Russia, in October, during 5.5 rainfall days, 14mm (0.55") of precipitation is typically accumulated.

How many days does it snow in October in Irkutsk?

In Irkutsk, Russia, in October, snow falls for 7.4 days, with typically accumulated 67mm (2.64") of snow.

How many hours of daylight does Irkutsk have in October?

In Irkutsk, Russia, the average day length in October is 10h and 38min.

When is the sunrise / sunset in October in Irkutsk?

On the first day of October in Irkutsk, sunrise is at 07:04 and sunset at 18:40. On the last day of the month, sunrise is at 07:57 and sunset at 17:35 +08.

How many hours of sunshine does Irkutsk have in October?

In Irkutsk, Russia, the average sunshine duration in October is 6.8h.

What is the UV index intensity in October in Irkutsk?

In October, the average daily maximum UV index in Irkutsk, Russia, is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Irkutsk, Russia

Average temperature in October - Irkutsk, Russia
  • Average high temperature in October: 6.4°C

The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-13.4°C).

  • Average low temperature in October: -2.6°C

The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is January (-23.8°C).

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Average pressure in October
Irkutsk, Russia

Average pressure in October - Irkutsk, Russia
  • Average pressure in October: 1023.1mbar

The month with the highest atmospheric pressure is January (1033.4mbar).
The month with the lowest atmospheric pressure is July (1006.6mbar).

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Average wind speed in October
Irkutsk, Russia

Average wind speed in October - Irkutsk, Russia
  • Average wind speed in October: 7.2km/h

The windiest month (with the highest average wind speed) is May (9.8km/h).
The calmest month (with the lowest average wind speed) is January (5.7km/h).

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Average humidity in October
Irkutsk, Russia

Average humidity in October - Irkutsk, Russia
  • Average humidity in October: 71%

The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is May (54%).

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Average rainfall in October
Irkutsk, Russia

Average rainfall in October - Irkutsk, Russia
  • Average rainfall in October: 14mm

The wettest month (with the highest rainfall) is July (65mm).
The driest months (with the least rainfall) are January and February (7mm).

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Average rainfall days in October
Irkutsk, Russia

Average rainfall days in October - Irkutsk, Russia
  • Average rainfall days in October: 5.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (2.2 days).

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Average snowfall in October
Irkutsk, Russia

Average snowfall in October - Irkutsk, Russia
  • Average snowfall in October: 67mm

The month with the highest snowfall is March (123mm).
The months with the least snowfall are June, July and August (0mm).

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Average snowfall days in October
Irkutsk, Russia

Average snowfall days in October - Irkutsk, Russia
  • Average snowfall days in October: 7.4 days

The month with the highest number of snowfall days is December (16.4 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in October /
Average sunshine in October
Irkutsk, Russia

Average daylight in October / Average sunshine in October - Irkutsk, Russia
  • Average daylight in October: 10h and 4min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).

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Average sunshine days in October
Irkutsk, Russia

Average sunshine days in October - Irkutsk, Russia
  • Average sunshine days in October: 20.5 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).

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Average UV index in October
Irkutsk, Russia

Average UV index in October - Irkutsk, Russia
  • Average UV index in October: 2

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in October
Irkutsk, Russia

Average cloud cover in October - Irkutsk, Russia
  • Average cloud cover in October: 40

The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in October
Irkutsk, Russia

Average visibility in October - Irkutsk, Russia
  • Average visibility in October: 9km

The month with the highest visibility is June (10km).
The month with the lowest visibility is January (4km).

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Irkutsk, Russia

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