Sunshine hours in Rome: 2,568 hours a year, month by month

Rome gets 2,568 hours of sunshine a year on average (7.0 a day). Sunniest month: July with 342 hours. Every month, measured 1991–2020.

• Rome gets 2,568 hours of sunshine a year on average, 7.0 a day – 58% of the astronomically possible. The sunniest month is July with 342 hours (11.0 a day), the dullest November with 124 (4.1 a day).
• Number 9 of 27 large cities in Italy.
• Nearest weather station: Vigna di Valle, 33 km away – 1991–2020 average, Deutscher Wetterdienst.

Sunshine hours month by month

• January: 131 h · 4.2 h a day · 44 %
• February: 150 h · 5.4 h a day · 51 %
• March: 186 h · 6.0 h a day · 50 %
• April: 217 h · 7.2 h a day · 54 %
• May: 267 h · 8.6 h a day · 59 %
• June: 293 h · 9.8 h a day · 64 %
• July: 342 h · 11.0 h a day · 74 %
• August: 318 h · 10.3 h a day · 74 %
• September: 237 h · 7.9 h a day · 63 %
• October: 177 h · 5.7 h a day · 52 %
• November: 124 h · 4.1 h a day · 42 %
• December: 126 h · 4.1 h a day · 44 %

Questions about sunshine hours

• How many hours of sunshine does Rome get a year? On average over 1991–2020 the sun shines in Rome for 2,568 hours a year – 7.0 hours a day and 58% of the time the sun is above the horizon.
• What is the sunniest month in Rome? July, with 342 hours of sunshine, 11.0 a day on average. The least sun comes in November: 124 hours, 4.1 a day.
• Is Rome a sunny city? Among the 27 large cities in Italy with measurements, Rome ranks number 9.
• Where do the figures come from? From the 1991–2020 climate normals of Deutscher Wetterdienst: Germany from its own station network, the rest of the world from the CLIMAT reports of the national weather services. Rome uses the station Vigna di Valle.
• What counts as an hour of sunshine? By the World Meteorological Organization's definition the sun is shining once its direct radiation exceeds 120 watts per square metre. Just after sunrise and before sunset it is often too weak – which is why even deserts never reach 100%.

The sunniest large cities: United Kingdom

• 1. Southend-on-Sea: 1,846 h a year
• 2. Southampton: 1,780 h a year
• 3. Norwich: 1,719 h a year
• 4. London: 1,675 h a year
• 5. Plymouth: 1,673 h a year
• 6. Bristol: 1,654 h a year
• 7. Swansea: 1,644 h a year
• 8. Sheffield: 1,631 h a year
• 9. Edinburgh: 1,575 h a year
• 10. Birmingham: 1,490 h a year

The cloudiest large cities: United Kingdom

• 1. Glasgow: 1,153 h a year
• 2. Belfast: 1,372 h a year
• 3. Aberdeen: 1,448 h a year
• 4. Leeds: 1,488 h a year

The sunniest large cities in the world

• 1. Dubai: 3,610 h a year
• 2. Victoria de Durango: 3,573 h a year
• 3. Abu Dhabi: 3,522 h a year
• 4. Hermosillo: 3,479 h a year
• 5. Kassala: 3,451 h a year
• 6. Iranshahr: 3,410 h a year
• 7. Dammam: 3,391 h a year
• 8. Gaborone: 3,388 h a year
• 9. Zahedan: 3,386 h a year
• 10. Yazd: 3,381 h a year

The cloudiest large cities in the world

• 1. Chengdu: 962 h a year
• 2. Chongqing: 985 h a year
• 3. Sukabumi: 1,082 h a year
• 4. Glasgow: 1,153 h a year
• 5. Tanjung Pinang: 1,172 h a year
• 6. Medan: 1,201 h a year
• 7. Samarinda: 1,275 h a year
• 8. Sungai Penuh: 1,311 h a year
• 9. Limerick: 1,339 h a year
• 10. Huaihua: 1,352 h a year

• Data: Deutscher Wetterdienst (DWD), sunshine duration climate normals 1991–2020, CC BY 4.0. Possible hours: time between sunrise and sunset.