Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of -2.3°C (27.9°F), January is the coldest month.Humidity
In Tehran, the average relative humidity in January is 50%.Rainfall
In Tehran, during January, the rain falls for 7.8 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, in Tehran, there are 93.2 rainfall days, and 244mm (9.61") of precipitation is accumulated.Snowfall
Months with snowfall in Tehran are January through March, November and December. The month with the most snowfall in Tehran is January, when snow falls for 3.3 days and typically aggregates up to 27mm (1.06") of snow.Daylight
The average length of the day in January is 10h and 4min.On the first day of January, sunrise is at 07:14 and sunset at 17:01. On the last day of the month, sunrise is at 07:05 and sunset at 17:29 +0330.
Sunshine
In January, the average sunshine is 7.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during January leads to these advisories:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Tehran?
How cold does it get in Tehran in January?
What is the average humidity in January in Tehran?
How many days does it rain in January in Tehran?
What is the snowiest month in Tehran?
How many days does it snow in January in Tehran?
What is the average length of the day in January in Tehran?
When is the sunrise / sunset in January in Tehran?
How many hours of sunshine does Tehran have in January?
What are the months with the lowest UV index in Tehran?
What is the UV index reading in January in Tehran?
Average temperature in January
Tehran, Iran
- Average high temperature in January: 5.8°C
The warmest month (with the highest average high temperature) is July (33.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in January: -2.3°C
The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in January
Tehran, Iran
- Average pressure in January: 1020.1mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).
Average wind speed in January
Tehran, Iran
- Average wind speed in January: 6.6km/h
The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest months (with the lowest average wind speed) are November and December (5.5km/h).
Average humidity in January
Tehran, Iran
- Average humidity in January: 50%
The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is July (19%).
Average rainfall in January
Tehran, Iran
- Average rainfall in January: 21mm
The wettest month (with the highest rainfall) is April (38mm).
The driest month (with the least rainfall) is September (6mm).
Average rainfall days in January
Tehran, Iran
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is September (2.9 days).
Average snowfall in January
Tehran, Iran
- Average snowfall in January: 27mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Tehran, Iran
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Tehran, Iran
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 7h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).
Average sunshine days in January
Tehran, Iran
- Average sunshine days in January: 17.9 days
The months with the most sunshine days are July and September (22.8 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in January
Tehran, Iran
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Tehran, Iran
- Average cloud cover in January: 19
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in January
Tehran, Iran
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Tehran, Iran
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