Weather in Koper in detsember
Climate normals based on 10 years of historical data for Koper, Sloveenia.
Average high
10°C
Average low
4°C
Rainfall
119 mm
10 rainy days
Sunshine
3.2h/day
Niiskus
78%
How Hot Is Koper in detsember?
Expect daytime highs around 10°C and overnight lows near 4°C in Koper during December — an average of 6°C across the day. Compared with November, this is a 4°C jump.
Sunshine Hours in detsember
Expect overcast stretches with patches of sun: 3.2h a day in Koper's December.
Does It Rain In Koper In detsember?
December is one of the wetter months in Koper: 119mm of rain across 10 days, with rain on most days.
Is Koper Humid In detsember?
Koper is sticky and humid throughout December: 78% humidity makes the heat feel relentless.
Wind In Koper In detsember
Light breezes typical: Koper averages 14 kph wind in December.
Cloud Cover In Koper In detsember
Cloudy skies dominate Koper in December — averaging 55% cloud cover.
Cities With Similar Weather In detsember
Weather in Koper, month by month
| Month | High / Low | Vihm | |
|---|---|---|---|
| Jaanuari ilm | 8°C / 2°C | 82mm | Details → |
| Veebruari ilm | 10°C / 3°C | 103mm | Details → |
| Märtsi ilm | 13°C / 5°C | 87mm | Details → |
| Aprilli ilm | 17°C / 9°C | 89mm | Details → |
| Mai ilm | 21°C / 13°C | 139mm | Details → |
| Juuni ilm | 26°C / 18°C | 96mm | Details → |
| Juuli ilm | 29°C / 20°C | 85mm | Details → |
| Augusti ilm | 29°C / 21°C | 109mm | Details → |
| Septembri ilm | 24°C / 16°C | 180mm | Details → |
| Oktoobri ilm | 19°C / 12°C | 143mm | Details → |
| Novembri ilm | 13°C / 7°C | 150mm | Details → |
| Detsembri ilm | 10°C / 4°C | 119mm |