The month in detail
What to expect in December
In December, Piran sees 52°F during the day with 4.3h of sunshine per day. Expect rain on 28% of days — a light raincoat in the bag is recommended.
December ranks 11 out of 12 months in Piran. Compared to November: −7°F daytime, 7 pts fewer rainy days.
This month's conditions
What it's like in December
UV index
2 · low
no protection needed
Feels like
dry air
4°
Sea
14°C
cold, for the brave
Daylight
8.5h of daylight
Air quality
good
AQI 29
Compare
Is December the right month?
The best month in Piran is July (8.9/10), 4.8 pts higher than December.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Piran
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Piran
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · Slovenia
🗣️LanguageSlovène
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 82°F
❄️Coolest monthJanuary · 48°F
🌧️Rainiest month ⓘMay · 35%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Explore
Other destinations in December
If December doesn't convince you for this destination, compare with others.
Location
Where is Piran ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
SloveniaTemperate oceanic climate with a 8.9 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
45.53°N · 13.57°E
Questions
Frequently asked questions
What is the best time to visit Piran?
July is the best month with 82°F highs, 70°F lows, 8.7h of sunshine and 22.0% rainy days. The months of July & August offer comparable conditions.
How many hours of sunshine does Piran get in July?
Piran averages 8.7 sunshine hours per day in July. It is the sunniest month with a climate score of 8.4/10.
What is the rainiest month in Piran?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Piran in July?
In July, overnight lows reach 70°F, while afternoon highs average 82°F.
Is Piran good in winter?
In winter (December-February), Piran scores 4.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 8.4/10.
When should you avoid Piran?
January is the most difficult month to visit Piran, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Piran in December?
In December, the sea averages 57°F in Piran: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in Piran in December?
The average UV index reaches 2 in December in Piran (low), with about 8.5h of daylight. No protection needed.