Trieste weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: May – September
What is the weather like in Trieste in June?
In June, Trieste is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sea averages 22.8 °C – refreshing for a swim. The sun shines for around 9 hours a day. Rain is frequent, with about 9 rainy days and 77 mm in total. All in all, June is an excellent month for a holiday in Trieste.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 15 h 41 min05:15 – 20:55
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 9 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Rome
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %97 %
- Few rainy daysweight 30 %61 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Trieste in June: quick answers
Is Trieste hot in June?
Warm rather than hot: in June, daytime highs in Trieste average 25 °C and nights cool to about 18 °C. On about 1 days the thermometer climbs to 30 °C or more.
Can you swim in Trieste in June?
Yes. In June the sea averages 22.8 °C – refreshing for a swim.
Does it rain much in Trieste in June?
Rain is frequent, with about 9 rainy days and 77 mm in total.
Trieste month by month
The whole year in TriesteAll destinations: ItalyWhere to go in JuneSea temperature in June
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences