Trieste weather in January
January in Trieste: cold, rainy, with clean air — a good time to visit.
#11 of 12 months in Trieste · #609 of 897 destinations to visit in January · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Trieste in January
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Trieste climate normals — January
| Daytime high | 8°C / 46°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 35°F | |
| Rainfall | 91 mm / 3.6 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 1°C / 35°F | |
| Sunshine | 5.6 h/day | |
| Daylight | 9.2 h | |
| Wind | 15 km/h / 9 mph | |
| Snowfall | 6.3 cm / 2.5 in | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Trieste in January — FAQ
- Is January a good time to visit Trieste?
- January in Trieste: cold, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Trieste on SeasonMap's comfort score (62/100).
- What is the weather like in Trieste in January?
- In January, Trieste averages a daily high of 7.8°C and a low of 1.6°C, with about 91.2 mm of rain over roughly 8.6 rainy days.
- What is the air quality in Trieste in January?
- Trieste has a mean US Air Quality Index of about 44 in January.
- Does it snow in Trieste in January?
- Trieste sees roughly 6.3 cm of snowfall in January.