January weather forecast
Ljubljana, Slovenia

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The capital of Slovenia, Ljubljana, with a small river flowing through the city, and a distant view of the mountains
The capital of Slovenia, Ljubljana, with a small river flowing through the city, and a distant view of the mountains

Weather in January

Ljubljana in Slovenia begins the year with wintry weather. The temperatures often dip below freezing, where the lowest average being -2.5°C (27.5°F). This month is marked by a relatively low number of daylight hours, with the sun setting early and making for long, cold nights. Even though the days are relatively brighter than December, there is still a substantial amount of cloud cover. The city experiences rainfall, turning the landscape into a frosty vista, with occasional snowfall adding to the wintry aesthetic.

Temperature

During the coldest month, January, temperatures average a high of 3.4°C (38.1°F) and a low of -2.5°C (27.5°F).

Rainfall

The month with the least rainfall in Ljubljana is January, when the rain falls for 11 days and typically collects 69mm (2.72") of precipitation.

Daylight

In Ljubljana, Slovenia, the average length of the day in January is 9h and 7min.
On the first day of January in Ljubljana, Slovenia, sunrise is at 07:43 and sunset at 16:26. On the last day of the month, sunrise is at 07:26 and sunset at 17:04 CET.

Sunshine

The average sunshine in January in Ljubljana, Slovenia, is 2.3h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 1 during January translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What are the coldest months in Ljubljana?

Ljubljana's January weather, with an average high temperature of 3.4°C (38.1°F) and an average low temperature of -2.5°C (27.5°F), tends to be the coldest of the year.

How cold is January in Ljubljana?

In January, in Ljubljana, the average high-temperature is 3.4°C (38.1°F), and the average low-temperature is -2.5°C (27.5°F).

What is the driest month in Ljubljana?

January is the month with the least rainfall in Ljubljana. Rain falls for 11 days and accumulates 69mm (2.72") of precipitation.

How many days does it rain in January in Ljubljana?

In January, in Ljubljana, Slovenia, the rain falls for 11 days. Throughout January, 69mm (2.72") of precipitation is accumulated.

What is the average length of the day in January in Ljubljana?

The average day length in January in Ljubljana, Slovenia, is 9h and 7min.

When are sunrise and sunset in January in Ljubljana?

In January, on the first day of the month, sunrise is at 07:43 and sunset at 16:26. On the last day of the month, in Ljubljana, sunrise is at 07:26 and sunset at 17:04 CET.

How many hours of sunshine does Ljubljana have in January?

The average sunshine duration in January is 2.3h.

When is the lowest UV index in Ljubljana?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

What is the UV index reading in January in Ljubljana?

In January, the average daily maximum UV index in Ljubljana is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in January
Ljubljana, Slovenia

Average temperature in January - Ljubljana, Slovenia
  • Average high temperature in January: 3.4°C

The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in January: -2.5°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).

Average rainfall in January
Ljubljana, Slovenia

Average rainfall in January - Ljubljana, Slovenia
  • Average rainfall in January: 69mm

The wettest months (with the highest rainfall) are September and October (147mm).
The driest month (with the least rainfall) is January (69mm).

Average rainfall days in January
Ljubljana, Slovenia

Average rainfall days in January - Ljubljana, Slovenia
  • Average rainfall days in January: 11 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (9 days).

Average daylight in January /
Average sunshine in January
Ljubljana, Slovenia

Average daylight in January / Average sunshine in January - Ljubljana, Slovenia
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 2h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average UV index in January
Ljubljana, Slovenia

Average UV index in January - Ljubljana, Slovenia
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).

Ljubljana, Slovenia

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