Trieste weather in April

April in Trieste: cool, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Trieste · #406 of 897 destinations to visit in April · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
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Trieste climate normals — April
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 7°C / 45°F | |
| Rainfall | 109 mm / 4.3 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 5°C / 42°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 13.6 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 2.1 cm / 0.8 in | |
| 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 April — FAQ
- Is April a good time to visit Trieste?
- April in Trieste: cool, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Trieste on SeasonMap's comfort score (82/100).
- What is the weather like in Trieste in April?
- In April, Trieste averages a daily high of 15.8°C and a low of 7.2°C, with about 108.6 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Trieste in April?
- Trieste has a mean US Air Quality Index of about 46 in April.
- Does it snow in Trieste in April?
- Trieste sees roughly 2.1 cm of snowfall in April.