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Slovenia weather in January

Slovenia in January averages 1°C (34°F), 67 mm of rain and 2.2 hours of sun a day.

Of the twelve months in Slovenia, January is the coldest, the driest and the third dullest.

Slovenia
Average temp
1°C (34°F)

-2–4°C · 29–39°F

Rainfall
67 mm

Showers likely

Sunshine
2.2 h

hours per day

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What is Slovenia like in January?

Daytime

Days are cool.

Rain

Some rain is likely; pack for showers.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for Slovenia in January?

  • A light rain jacket

    About 67 mm falls this month — showers rather than washouts.

  • A warm mid-layer

    Nights drop to around -2°C (29°F).

January compared with December and February

January in Slovenia is about the same temperature as December and 37 mm drier than it, which averages 2°C (35°F).

January in Slovenia is 1.7°C cooler than February and 17 mm drier than it, which averages 3°C (37°F).

Daylight in Slovenia in January

On 15 January the sun is up for 9 hours 1 minute in Slovenia, rising about 07:38 and setting about 16:39 local time.

January ends 56 minutes longer than it begins, so the last week of the month is a different length of day from the first.

That is 6 hours 44 minutes short of June, the longest-lit month here.

Travel guides for Slovenia

What to read before you book.

All travel guides in Slovenia

Slovenia weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 1 Oct 2026358 places covered

How January compares with the rest of the year

January is highlighted. Every other month links to its own page.

Slovenia weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January1°C / 34°F67 mm
February3°C / 37°F85 mm
March7°C / 45°F82 mm
April12°C / 53°F96 mm
May16°C / 61°F114 mm
June20°C / 68°F126 mm
July22°C / 72°F121 mm
August22°C / 71°F124 mm
September17°C / 62°F159 mm
October12°C / 54°F150 mm
November7°C / 44°F138 mm
December2°C / 35°F105 mm

Similar weather in January

Other destinations whose January averages sit close to this one.

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FAQs about Slovenia in January

January climate averages for Slovenia, 1991–2020.

Slovenia averages 1°C (34°F) in January, ranging from about -2°C (29°F) at night to 4°C (39°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Some. About 67 mm falls across January, enough to need a light jacket but not enough to reshape a trip.

No. January averages 1°C (34°F) against 3°C (37°F) in February — 1.7°C cooler.

January is about as warm as December, and 37 mm drier.

It is outside the easiest window. The most comfortable stretch here is April to September; January sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.

About 2.2 hours of sun a day on the 1991–2020 average, so daylight is short on useful sun.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what January is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 9 hours 1 minute of daylight in mid-January, against 15 hours 45 minutes in June and 8 hours 39 minutes in December.

On 15 January, sunrise is about 07:38 and sunset about 16:39 local time. Both shift across the month — the month ends 56 minutes longer than it starts.