January weather forecastTrieste, Italy

January
Weather in January
Trieste witnesses the extension of the chilling European winter in January, bringing cold temperature extremes and gloomy days. Temperatures dip to a low of 1.6°C (34.9°F) while the high averages only around 5.9°C (42.6°F). Aside from the biting cold, January is also characterized by moderate-to-high humidity and short daylight hours which add to the overall sense of winter. Travelers can expect to dress heavily for winter with layers to tackle the biting cold and the precipitation, which often takes the form of both rain and snow.Temperature
The month of January sees the lowest average temperatures, reaching 5.9°C (42.6°F) at the peak and 1.6°C (34.9°F) at the low.Humidity
The average relative humidity in January is 79%.Rainfall
The month with the least rainfall is January, when the rain falls for 10.9 days and typically collects 54mm (2.13") of precipitation.Snowfall
January through March and December are months with snowfall. In January, it is snowing for 1.2 days. Throughout January, 10mm (0.39") of snow is accumulated. Throughout the year, in Trieste, there are 3.5 snowfall days, and 39mm (1.54") of snow is accumulated.Sea temperature
In Trieste, Italy, the average seawater temperature in January is 10.3°C (50.5°F).Note: Swimming in 10.3°C (50.5°F) can be lethal. Merely spending a few minutes in 13°C (55.4°F) waters feels harsh, and venturing below 10°C (50°F) might disrupt breathing control and bring about cold shock, contingent on individual resilience.
Daylight
In January, the average length of the day in Trieste is 9h and 10min.On the first day of January in Trieste, Italy, sunrise is at 07:45 and sunset at 16:31. On the last day of the month, sunrise is at 07:27 and sunset at 17:08 CET.
Sunshine
The average sunshine in January is 5.3h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 2 in January transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Trieste, Italy
- Average high temperature in January: 5.9°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in January: 1.6°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in January
Trieste, Italy
- Average pressure in January: 1018mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The months with the lowest atmospheric pressure are May, June and July (1014.7mbar).
Average wind speed in January
Trieste, Italy
- Average wind speed in January: 9.8km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest months (with the lowest average wind speed) are June, July and August (8.6km/h).
Average humidity in January
Trieste, Italy
- Average humidity in January: 79%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (68%).
Average rainfall in January
Trieste, Italy
- Average rainfall in January: 54mm
The wettest month (with the highest rainfall) is November (129mm).
The driest month (with the least rainfall) is January (54mm).
Average rainfall days in January
Trieste, Italy
- Average rainfall days in January: 10.9 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.9 days).
Average snowfall in January
Trieste, Italy
- Average snowfall in January: 10mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Trieste, Italy
- Average snowfall days in January: 1.2 days
The month with the highest number of snowfall days is January (1.2 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
Trieste, Italy
- Average sea temperature in January: 10.3°C
The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).
Average daylight in January /
Average sunshine in January
Trieste, Italy
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 5h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are February and November (Average sunshine: 5h and 0min).
Average sunshine days in January
Trieste, Italy
- Average sunshine days in January: 17 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is May (6.6 days).
Average UV index in January
Trieste, Italy
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in January
Trieste, Italy
- Average cloud cover in January: 45
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in January
Trieste, Italy
- Average visibility in January: 9km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).








