Trieste, ItalyQuick decision
When to visit Trieste?
🌞 Best time overall
June
🌡️ Optimal temperature
64°F–81°F in June
🌧 Least rain
30% rainy days in June
🌧 Wettest month
December (37%)
📅 Best score
8.8/10
By trip type
Best time by type of trip
Historic cafésYear-round — San Marco, Antico Torinese: Italy's coffee capital.
Miramare CastleYear-round — Habsburg palace by the sea, botanical gardens.
Barcola & Grotta GiganteJun–Sep — local swimming, world's largest tourist cave.
Karst osmizeYear-round — rural Karst taverns, jota triestina, local wines.
Monthly climate data
Trieste weather month by month
| Month | Min °F | Max °F | Rainy days (%) | Precip. in/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 36°F | 48°F | 34% | 0.1in | 7.2h | 4.3/10 |
| 🌦️ February | 39°F | 52°F | 36% | 0.2in | 8.6h | 4.8/10 |
| ⛅ March | 43°F | 57°F | 32% | 0.1in | 10.7h | 6.8/10 |
| ⛅ April | 48°F | 63°F | 32% | 0.1in | 12.0h | 7.1/10 |
| 🌦️ May | 55°F | 70°F | 50% | 0.2in | 12.7h | 7.3/10 |
| 🌤️ June | 64°F | 81°F | 30% | 0.1in | 14.0h | 8.8/10 |
| 🌤️ July | 68°F | 84°F | 29% | 0.1in | 14.0h | 8.6/10 |
| 🌤️ August | 70°F | 84°F | 25% | 0.1in | 13.0h | 8.6/10 |
| 🌤️ September | 63°F | 75°F | 37% | 0.2in | 11.7h | 7.7/10 |
| 🌤️ October | 55°F | 66°F | 37% | 0.2in | 9.7h | 7.1/10 |
| 🌦️ November | 46°F | 57°F | 45% | 0.2in | 7.2h | 4.5/10 |
| 🌦️ December | 39°F | 50°F | 37% | 0.2in | 6.5h | 4.2/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 17°F, 38% rainy days, 11.8h sunshine/day. Score: 7.1/10.
☀️ Summer (Jun–Aug) — Excellent time
Average 28°F, 28% rainy days, 13.7h sunshine/day. Score: 8.7/10.
🍂 Autumn (Sep–Nov) — Acceptable
Average 19°F, 40% rainy days, 9.5h sunshine/day. Score: 6.4/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 10°F, 36% rainy days, 7.4h sunshine/day. Score: 4.4/10.
Accommodation
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Check availability during the recommended period
Tip : March, April offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Trieste
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
June is ideal with 30% rainy days and 27°F.
December is the wettest month with 37% rainy days.
Yes, June is the best month with an average of 27°F.
In winter, the average score is 4.4/10. Difficult period — prefer the peak season.
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