Climate averages 1991–2020
Guidonia Montecelio weather
in June.
A warm, moderately wet month: the 3rd warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Guidonia Montecelio: daytime highs average 27.7°C and nights cool to about 15.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 46 mm of rain on roughly 7 days, which makes June a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 11 min on an average June day.
The nearest other city in this atlas is Rome (21 km away). In June its highs average 26.8°C, 0.8°C cooler than Guidonia Montecelio, with 34 mm of rain.
Among the 79 cities listed in Italy, Guidonia Montecelio ranks 13th of 79 for the warmest June highs and 36th of 79 for the driest June (rainfall, lowest first). The mean June high of those 79 cities is 26.1°C; Guidonia Montecelio is 1.5°C warmer than that mean.
From June to July, average highs rise by 3.5°C to 31.1°C, and monthly rainfall falls from 46 mm to 28 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
Guidonia Montecelio climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.1°C2.0°C | 2.0°C | 69 | 8.5 | 9.59 h |
| February | 12.1°C2.1°C | 2.1°C | 77 | 9.4 | 10.611 h |
| March | 15.2°C4.5°C | 4.5°C | 84 | 9.9 | 11.912 h |
| April | 18.4°C7.4°C | 7.4°C | 94 | 12.2 | 13.313 h |
| May | 22.9°C11.5°C | 11.5°C | 77 | 10.3 | 14.515 h |
| June, selected | 27.7°C15.5°C | 15.5°C | 46 | 7.3 | 15.215 h |
| July | 31.1°C18.4°C | 18.4°C | 28 | 4.8 | 14.915 h |
| August | 31.5°C19.0°C | 19.0°C | 28 | 5.5 | 13.914 h |
| September | 25.7°C15.3°C | 15.3°C | 85 | 9.4 | 12.513 h |
| October | 20.9°C11.6°C | 11.6°C | 113 | 10.4 | 11.111 h |
| November | 15.8°C7.4°C | 7.4°C | 132 | 12.4 | 9.910 h |
| December | 11.9°C3.3°C | 3.3°C | 104 | 10.3 | 9.29 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
- Rome in JuneItaly · 21 kmHigh 26.8°C · Low 16.5°C · 34 mm rain
- Acilia-Castel Fusano-Ostia Antica in JuneItaly · 41 kmHigh 24.9°C · Low 18.4°C · 22 mm rain
- Aprilia in JuneItaly · 45 kmHigh 25.3°C · Low 17.4°C · 29 mm rain
- Fiumicino in JuneItaly · 47 kmHigh 24.6°C · Low 18.6°C · 22 mm rain
- Latina in JuneItaly · 61 kmHigh 26.0°C · Low 17.4°C · 35 mm rain
- Terni in JuneItaly · 64 kmHigh 27.8°C · Low 15.5°C · 53 mm rain
- Perugia in JuneItaly · 127 kmHigh 24.9°C · Low 13.5°C · 49 mm rain
- Pescara in JuneItaly · 132 kmHigh 25.7°C · Low 17.4°C · 47 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 Guidonia Montecelio) is explained once on the Guidonia Montecelio year overview and on the Sources, method and limits page.