Sunshine hours in Hamamatsu: 2,271 hours a year, month by month

Hamamatsu gets 2,271 hours of sunshine a year on average (6.2 a day). Sunniest month: August with 237 hours. Every month, measured 1991–2020.

• Hamamatsu gets 2,271 hours of sunshine a year on average, 6.2 a day – 51% of the astronomically possible. The sunniest month is August with 237 hours (7.6 a day), the dullest June with 148 (4.9 a day).
• The sunniest of 275 large cities in Japan.
• Nearest weather station: Omaezaki, 45 km away – 1991–2020 average, Deutscher Wetterdienst.

Sunshine hours month by month

• January: 204 h · 6.6 h a day · 65 %
• February: 188 h · 6.7 h a day · 61 %
• March: 198 h · 6.4 h a day · 53 %
• April: 201 h · 6.7 h a day · 51 %
• May: 203 h · 6.5 h a day · 47 %
• June: 148 h · 4.9 h a day · 34 %
• July: 188 h · 6.1 h a day · 43 %
• August: 237 h · 7.6 h a day · 57 %
• September: 174 h · 5.8 h a day · 47 %
• October: 162 h · 5.2 h a day · 46 %
• November: 171 h · 5.7 h a day · 55 %
• December: 197 h · 6.4 h a day · 64 %

Questions about sunshine hours

• How many hours of sunshine does Hamamatsu get a year? On average over 1991–2020 the sun shines in Hamamatsu for 2,271 hours a year – 6.2 hours a day and 51% of the time the sun is above the horizon.
• What is the sunniest month in Hamamatsu? August, with 237 hours of sunshine, 7.6 a day on average. The least sun comes in June: 148 hours, 4.9 a day.
• Is Hamamatsu a sunny city? Among the 275 large cities in Japan with measurements, Hamamatsu ranks number 1.
• 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. Hamamatsu uses the station Omaezaki.
• 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 States

• 1. Phoenix: 3,873 h a year
• 2. Las Vegas: 3,826 h a year
• 3. Tucson: 3,806 h a year
• 4. Reno: 3,647 h a year
• 5. Sacramento: 3,609 h a year
• 6. Fresno: 3,565 h a year
• 7. Chico: 3,542 h a year
• 8. Colorado Springs: 3,463 h a year
• 9. Albuquerque: 3,414 h a year
• 10. Amarillo: 3,298 h a year

The cloudiest large cities: United States

• 1. Pittsburgh: 1,972 h a year
• 2. Anchorage: 2,063 h a year
• 3. Syracuse: 2,120 h a year
• 4. Seattle: 2,170 h a year
• 5. Columbus: 2,182 h a year
• 6. Grand Rapids: 2,188 h a year
• 7. Buffalo: 2,206 h a year
• 8. Meads: 2,259 h a year
• 9. Cleveland: 2,281 h a year
• 10. Rochester: 2,299 h a year

The sunniest large cities in the world

• 1. Mexicali: 4,017 h a year
• 2. Phoenix: 3,873 h a year
• 3. Las Vegas: 3,826 h a year
• 4. Tucson: 3,806 h a year
• 5. Ciudad Juárez: 3,763 h a year
• 6. Reno: 3,647 h a year
• 7. Dubai: 3,610 h a year
• 8. Sacramento: 3,609 h a year
• 9. Victoria de Durango: 3,573 h a year
• 10. Fresno: 3,565 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.