Solar energy in Kitakyushu, Japan
Average irradiation 3.82 kWh/m²/day · ~1115 kWh per kWp per year
Monthly solar irradiation & temperature in Kitakyushu (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 2.18 | 7.6 | 53 |
| Feb | 2.90 | 8.3 | 71 |
| Mar | 3.97 | 10.6 | 97 |
| Apr | 4.84 | 14.4 | 118 |
| May | 5.24 | 18.5 | 127 |
| Jun | 4.54 | 22.0 | 110 |
| Jul | 4.75 | 25.8 | 115 |
| Aug | 5.07 | 27.4 | 123 |
| Sep | 4.13 | 24.3 | 100 |
| Oct | 3.55 | 19.9 | 86 |
| Nov | 2.63 | 15.1 | 64 |
| Dec | 2.04 | 9.9 | 50 |
Solar potential of Kitakyushu explained
Kitakyushu receives an average of 3.82 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 1115 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This is a solid mid-range solar resource: production is meaningful year-round, though winter output drops noticeably.
Frequently asked questions
Is solar worth it in Kitakyushu?
With 3.82 kWh/m²/day of average irradiation, a 1 kWp system in Kitakyushu produces roughly 1115 kWh per year. That is a good solar resource; with current panel prices most systems pay back well within their lifetime.
How much electricity would a 5 kW system produce in Kitakyushu?
Approximately 6,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
Dubai (5.9) · Riyadh (6) · Doha (5.8) · Tel Aviv (5.4) · Amman (5.6) · Tokyo (3.6) · all cities →