Croatia (Istria) · December
Low seasonCroatia · Europe
Max Temp · December
12°
at night 4° · avg 8°
- Sunshine
- 3 h/day
- Rain Days
- 7 days
- Water Temp
- 15°
below average
108 mm · changeable
cool
In Croatia (Istria), December is 19°C cooler than the warmest month (July).
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MAXMAX | 10° | 11° | 14° | 18° | 22° | 27° | 30° | 30° | 25° | 20° | 15° | 12° |
MINMIN | 2° | 3° | 5° | 8° | 12° | 17° | 19° | 19° | 16° | 12° | 8° | 4° |
☀️Sunshine | 3h | 4h | 6h | 7h | 7h | 9h | 9h | 8h | 6h | 5h | 3h | 3h |
🌊Water Temp | 13° | 12° | 12° | 14° | 18° | 22° | 24° | 25° | 22° | 20° | 17° | 15° |
🌧Rain Days | 6d73mm | 7d82mm | 6d67mm | 6d57mm | 7d81mm | 4d51mm | 3d39mm | 5d67mm | 6d108mm | 6d80mm | 8d144mm | 7d108mm |
Best travel time current monthMonthly averages 2005–2025 · Source: ERA5 + station data
Deep off-season — very low prices, but weather conditions are suboptimal.
December is the coldest winter month in Croatia (Istria) — with highs of only 11°C, it holds little appeal for sun-seekers. Better travel in June, July, August, and September.
Temperatures reach a maximum of 11°C during the day and drop to 3°C at night — warm layers recommended. With 2 sunshine hours per day and 7 rain days (108 mm), this is one of the cloudier months. At 15°C, the water is still quite cool in December — a wetsuit may be useful.
Pack warm clothing and sturdy footwear. Cool temperatures make hiking and cultural trips enjoyable — beaches are off the agenda.
Packing list for Croatia (Istria) in December
- Warme Jacke
- Pullover und warme Lagen
- Lange Hosen
- Wärmende Schuhe
- Leichter Regenschirm oder Regenponcho
- Reiseapotheke
Frequently Asked Questions
- Is December a good time to visit Croatia (Istria)?
- No — December is not among the recommended months for Croatia (Istria) (Score: 29/100). Climate conditions are unfavourable. For better conditions, consider June, July, August, and September.
- How warm is it in Croatia (Istria) in December?
- In December, Croatia (Istria) sees daily highs of 11°C. Nights cool to 3°C, with a daily average of 7°C.
- How much rain falls in Croatia (Istria) in December?
- In December, Croatia (Istria) receives an average of 108 mm of rain over 7 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does Croatia (Istria) get in December?
- Croatia (Istria) averages 2 sunshine hours per day in December — below the annual average.
- How warm is the water in Croatia (Istria) in December?
- Water temperature in Croatia (Istria) in December averages 15°C — still quite cool — a wetsuit may be useful.