January weather forecast
Rostam Rah, Iran

January

Weather in January

January, like December, in Rostam Rah, Iran, is another cold winter month, with an average temperature fluctuating between -3.6°C (25.5°F) and 3.7°C (38.7°F).

Temperature

January, marked by an average high-temperature of 3.7°C (38.7°F) and a low-temperature of -3.6°C (25.5°F), is the coldest month.

Humidity

January and February, with an average relative humidity of 68%, are the most humid months in Rostam Rah.

Rainfall

In January, the rain falls for 9.5 days. Throughout January, 46mm (1.81") of precipitation is accumulated. In Rostam Rah, during the entire year, the rain falls for 83.6 days and collects up to 350mm (13.78") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 6.9 days and accumulates 153mm (6.02") of snow.

Daylight

In Rostam Rah, the average length of the day in January is 10h and 11min.
On the first day of the month, sunrise is at 07:19 and sunset at 17:15. On the last day of January, sunrise is at 07:11 and sunset at 17:42 +0330.

Sunshine

With an average of 6.6h of sunshine, January has the least sunshine of the year in Rostam Rah.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What time of the year is the coldest?
With an average high-temperature of 3.7°C (38.7°F) and an average low-temperature of -3.6°C (25.5°F), January is the coldest month.
Is it cold during January?
The high-temperature in Rostam Rah during January is 3.7°C (38.7°F) and the low-temperature is -3.6°C (25.5°F).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 68%.
What is the average humidity in January?
In Rostam Rah, the average relative humidity in January is 68%.
How many days does it rain in January?
In Rostam Rah, during January, the rain falls for 9.5 days and regularly aggregates up to 46mm (1.81") of precipitation.
When does it snow the most in Rostam Rah?
January is the month with the most snowfall. Snow falls for 6.9 days and accumulates 153mm (6.02") of snow.
How much does it snow in January?
In January, it is snowing for 6.9 days. Throughout January, 153mm (6.02") of snow is accumulated.
What is the average length of the day in January?
In Rostam Rah, the average day length in January is 10h and 11min.
What time are sunrise and sunset in January?
In January, on the first day of the month, sunrise is at 07:19 and sunset at 17:15. On the last day of the month, sunrise is at 07:11 and sunset at 17:42 +0330.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 6.6h of sunshine.
How many hours of sunshine does Rostam Rah have in January?
In January, the average sunshine duration is 6.6h.
What is the month with the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
How high is the UV index in January?
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Rostam Rah, Iran
  • Average high temperature in January: 3.7°C

The warmest month (with the highest average high temperature) is July (33.4°C).
The month with the lowest average high temperature is January (3.7°C).

  • Average low temperature in January: -3.6°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

Average pressure in January
Rostam Rah, Iran
  • Average pressure in January: 1020.6mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is July (1004.7mbar).

Average wind speed in January
Rostam Rah, Iran
  • Average wind speed in January: 8.5km/h

The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is November (7.2km/h).

Average humidity in January
Rostam Rah, Iran
  • Average humidity in January: 68%

The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is July (19%).

Average rainfall in January
Rostam Rah, Iran
  • Average rainfall in January: 46mm

The wettest month (with the highest rainfall) is March (64mm).
The driest month (with the least rainfall) is August (1mm).

Average rainfall days in January
Rostam Rah, Iran
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (1.3 days).

Average snowfall in January
Rostam Rah, Iran
  • Average snowfall in January: 153mm

The month with the highest snowfall is January (153mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January
Rostam Rah, Iran
  • Average snowfall days in January: 6.9 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Rostam Rah, Iran
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 6h and 4min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).

Average sunshine days in January
Rostam Rah, Iran
  • Average sunshine days in January: 16.7 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is April (14.3 days).

Average UV index in January
Rostam Rah, Iran
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January
Rostam Rah, Iran
  • Average cloud cover in January: 31

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is September (Cloud cover 4).

Average visibility in January
Rostam Rah, Iran
  • Average visibility in January: 9km

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).

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