Climate averages 1991–2020
Trieste weather
in June.
A warm, wet month: the 3rd warmest and the joint 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Trieste: daytime highs average 24.8°C and nights cool to about 16.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 111 mm of rain on roughly 12 days, which makes June a wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 38 min on an average June day.
The nearest other city in this atlas is Udine (63 km away). In June its highs average 23.8°C, 1.0°C cooler than Trieste, with 97 mm of rain.
Among the 79 cities listed in Italy, Trieste ranks joint 68th of 79 for the warmest June highs and 73rd of 79 for the driest June (rainfall, lowest first). The mean June high of those 79 cities is 26.1°C; Trieste is 1.4°C cooler than that mean.
From June to July, average highs rise by 2.6°C to 27.4°C, and monthly rainfall falls from 111 mm to 87 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Trieste climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C1.1°C | 1.1°C | 90 | 9.5 | 9.19 h |
| February | 8.6°C1.1°C | 1.1°C | 97 | 8.7 | 10.310 h |
| March | 12.4°C4.1°C | 4.1°C | 101 | 9.7 | 11.912 h |
| April | 16.4°C7.8°C | 7.8°C | 110 | 12.1 | 13.513 h |
| May | 20.6°C12.3°C | 12.3°C | 122 | 13.0 | 14.915 h |
| June, selected | 24.8°C16.4°C | 16.4°C | 111 | 12.1 | 15.616 h |
| July | 27.4°C18.7°C | 18.7°C | 87 | 10.7 | 15.315 h |
| August | 27.7°C18.9°C | 18.9°C | 111 | 10.2 | 14.114 h |
| September | 22.3°C14.8°C | 14.8°C | 170 | 11.4 | 12.613 h |
| October | 17.4°C10.8°C | 10.8°C | 184 | 13.0 | 11.011 h |
| November | 12.3°C6.5°C | 6.5°C | 195 | 13.2 | 9.510 h |
| December | 8.0°C2.0°C | 2.0°C | 129 | 10.1 | 8.89 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Udine in JuneItaly · 63 kmHigh 23.8°C · Low 14.0°C · 97 mm rain
- Rijeka in JuneCroatia · 63 kmHigh 24.9°C · Low 16.7°C · 94 mm rain
- Ljubljana in JuneSlovenia · 72 kmHigh 23.2°C · Low 13.6°C · 105 mm rain
- Klagenfurt am Wörthersee in JuneAustria · 116 kmHigh 22.6°C · Low 13.1°C · 136 mm rain
- Treviso in JuneItaly · 119 kmHigh 25.4°C · Low 15.7°C · 89 mm rain
- Mestre in JuneItaly · 120 kmHigh 25.3°C · Low 17.0°C · 78 mm rain
- Padua in JuneItaly · 150 kmHigh 26.2°C · Low 16.5°C · 79 mm rain
- Zagreb in JuneCroatia · 172 kmHigh 25.2°C · Low 15.0°C · 84 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Trieste) is explained once on the Trieste year overview and on the Sources, method and limits page.