Piran, SloveniaQuick decision
When to visit Piran?
🌞 Best time overall
July
🌡️ Optimal temperature
21°C–28°C in July
🌧 Least rain
27% rainy days in July
🌧 Wettest month
December (34%)
📅 Best score
9.0/10
By trip type
Best time by type of trip
Venetian old townMay–Sep — Tartini Square, ramparts, medieval lanes, bell tower.
Beaches & Sečovlje salt pansJun–Sep — historic salt pans, swimming, Portorož 10 min away.
Seafood & wineYear-round — harbor restaurants, local Refošk wine, olive oil.
BudgetOct–Apr — affordable alternative to the nearby Croatian coast.
Monthly climate data
Piran weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 3°C | 9°C | 30% | 2.3 | 7.7h | 4.6/10 |
| 🌫️ February | 4°C | 11°C | 31% | 3.1 | 9.0h | 5.3/10 |
| ⛅ March | 6°C | 13°C | 30% | 2.4 | 10.8h | 6.8/10 |
| ⛅ April | 9°C | 16°C | 31% | 2.6 | 12.1h | 7.1/10 |
| 🌦️ May | 14°C | 20°C | 46% | 4.0 | 13.0h | 7.3/10 |
| 🌤️ June | 19°C | 26°C | 25% | 2.3 | 14.0h | 8.8/10 |
| 🌤️ July | 21°C | 28°C | 27% | 2.4 | 14.0h | 9.0/10 |
| ☀️ August | 22°C | 28°C | 22% | 2.7 | 13.0h | 9.0/10 |
| 🌤️ September | 18°C | 24°C | 35% | 5.4 | 11.7h | 7.8/10 |
| 🌤️ October | 13°C | 19°C | 31% | 4.1 | 9.9h | 7.2/10 |
| 🌦️ November | 9°C | 15°C | 44% | 4.9 | 8.0h | 5.1/10 |
| 🌫️ December | 5°C | 11°C | 34% | 3.5 | 7.0h | 4.5/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 16°C, 36% rainy days, 12.0h sunshine/day. Score: 7.1/10.
☀️ Summer (Jun–Aug) — Excellent time
Average 27°C, 25% rainy days, 13.7h sunshine/day. Score: 8.9/10.
🍂 Autumn (Sep–Nov) — Acceptable
Average 19°C, 37% rainy days, 9.9h sunshine/day. Score: 6.7/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 10°C, 32% rainy days, 7.9h sunshine/day. Score: 4.8/10.
Accommodation
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Tip : March, April offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Piran
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
July is ideal with 27% rainy days and 28°C. The months of July & August offer comparable conditions.
December is the wettest month with 34% rainy days.
Yes, July is the best month with an average of 28°C.
In winter, the average score is 4.8/10. Difficult period — prefer the peak season.
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