Sunshine hours in Jakarta: 1,502 hours a year, month by month

Jakarta gets 1,502 hours of sunshine a year on average (4.1 a day). Sunniest month: September with 177 hours. Every month, measured 1991–2020.

• Jakarta gets 1,502 hours of sunshine a year on average, 4.1 a day – 34% of the astronomically possible. The sunniest month is September with 177 hours (5.9 a day), the dullest February with 79 (2.8 a day).
• Number 32 of 100 large cities in Indonesia.
• Nearest weather station: Jakarta (Observ.)/Java, 4 km away – 1991–2020 average, Deutscher Wetterdienst.

Sunshine hours month by month

• January: 85 h · 2.7 h a day · 22 %
• February: 79 h · 2.8 h a day · 23 %
• March: 120 h · 3.9 h a day · 32 %
• April: 130 h · 4.3 h a day · 36 %
• May: 130 h · 4.2 h a day · 35 %
• June: 120 h · 4.0 h a day · 34 %
• July: 149 h · 4.8 h a day · 41 %
• August: 172 h · 5.5 h a day · 47 %
• September: 177 h · 5.9 h a day · 49 %
• October: 153 h · 4.9 h a day · 40 %
• November: 103 h · 3.4 h a day · 28 %
• December: 84 h · 2.7 h a day · 22 %

Questions about sunshine hours

• How many hours of sunshine does Jakarta get a year? On average over 1991–2020 the sun shines in Jakarta for 1,502 hours a year – 4.1 hours a day and 34% of the time the sun is above the horizon.
• What is the sunniest month in Jakarta? September, with 177 hours of sunshine, 5.9 a day on average. The least sun comes in February: 79 hours, 2.8 a day.
• Is Jakarta a sunny city? Among the 100 large cities in Indonesia with measurements, Jakarta ranks number 32.
• 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. Jakarta uses the station Jakarta (Observ.)/Java.
• 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.