Trieste weather in October
October in Trieste: nice, rainy, with clean air — a great time to visit.
#8 of 12 months in Trieste · #482 of 897 destinations to visit in October · comfort 77/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Trieste in October
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Trieste climate normals — October
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Rainfall | 149 mm / 5.9 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 10.9 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Trieste in October — FAQ
- Is October a good time to visit Trieste?
- October in Trieste: nice, rainy, with clean air — a great time to visit. It ranks #8 of 12 months for Trieste on SeasonMap's comfort score (77/100).
- What is the weather like in Trieste in October?
- In October, Trieste averages a daily high of 18.9°C and a low of 12°C, with about 149.3 mm of rain over roughly 12 rainy days.
- What is the air quality in Trieste in October?
- Trieste has a mean US Air Quality Index of about 46 in October.