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 sea temperature 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
The month of January sees the lowest average temperatures in Istanbul, Turkey, reaching 8.5°C (47.3°F) at the peak and 5.3°C (41.5°F) at the low.Humidity
The average relative humidity in January in Istanbul, Turkey, is 77%.Rainfall
In Istanbul, in January, it is raining for 12.9 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, there are 130.7 rainfall days, and 400mm (15.75") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Istanbul. The month with the most snowfall in Istanbul is January, when snow falls for 3.7 days and typically aggregates up to 24mm (0.94") of snow.Sea temperature
In January, the average sea temperature in Istanbul, Turkey, is 8.4°C (47.1°F).Note: Dipping into 8.4°C (47.1°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 13°C (55.4°F) feels cold to the bone.
Daylight
In January, the average length of the day is 9h and 37min.On the first day of January, sunrise is at 08:28 and sunset at 17:45. On the last day of the month, sunrise is at 08:15 and sunset at 18:18 +03.
Sunshine
In Istanbul, the average sunshine in January is 5h.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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in January suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. To guard against the harmful effects of the Sun, minimize exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are the coldest months in Istanbul?
What is the temperature in January in Istanbul?
What is the average humidity in January in Istanbul?
How many days does it rain in January in Istanbul?
What is the snowiest month in Istanbul?
How much does it snow in Istanbul in January?
How cold is the water in January in Istanbul?
What is the average length of the day in January in Istanbul?
What time are sunrise and sunset in January in Istanbul?
How many hours of sunshine does Istanbul have in January?
What is the month with the lowest UV index in Istanbul?
What is the UV index reading in January in Istanbul?
Average temperature in January
Istanbul, Turkey
- Average high temperature in January: 8.5°C
The warmest month (with the highest average high temperature) is July (27.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in January: 5.3°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in January
Istanbul, Turkey
- Average pressure in January: 1018.5mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is July (1011.7mbar).
Average wind speed in January
Istanbul, Turkey
- Average wind speed in January: 19km/h
The windiest month (with the highest average wind speed) is August (20.5km/h).
The calmest month (with the lowest average wind speed) is May (14km/h).
Average humidity in January
Istanbul, Turkey
- Average humidity in January: 77%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are June and July (67%).
Average rainfall in January
Istanbul, Turkey
- Average rainfall in January: 49mm
The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in January
Istanbul, Turkey
- Average rainfall days in January: 12.9 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in January
Istanbul, Turkey
- Average snowfall in January: 24mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Istanbul, Turkey
- Average snowfall days in January: 3.7 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Istanbul, Turkey
- Average sea temperature in January: 8.4°C
The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (7.8°C).
Average daylight in January /
Average sunshine in January
Istanbul, Turkey
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in January
Istanbul, Turkey
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in January
Istanbul, Turkey
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in January
Istanbul, Turkey
- Average cloud cover in January: 55
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in January
Istanbul, Turkey
- 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).
Istanbul, Turkey
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