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.

- Average temp
- 1°C (34°F)
-2–4°C · 29–39°F
- Rainfall
- 67 mm
Showers likely
- Sunshine
- 2.2 h
hours per day
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.
Slovenia weather by month
TemperatureRainfall
How January compares with the rest of the year
January is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 1°C / 34°F | 67 mm |
| February | 3°C / 37°F | 85 mm |
| March | 7°C / 45°F | 82 mm |
| April | 12°C / 53°F | 96 mm |
| May | 16°C / 61°F | 114 mm |
| June | 20°C / 68°F | 126 mm |
| July | 22°C / 72°F | 121 mm |
| August | 22°C / 71°F | 124 mm |
| September | 17°C / 62°F | 159 mm |
| October | 12°C / 54°F | 150 mm |
| November | 7°C / 44°F | 138 mm |
| December | 2°C / 35°F | 105 mm |
Similar weather in January
Other destinations whose January averages sit close to this one.
Check another month
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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.




