Solar energy in Montevideo, Uruguay
Average irradiation 4.84 kWh/m²/day · ~1413 kWh per kWp per year
Monthly solar irradiation & temperature in Montevideo (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 7.39 | 23.2 | 180 |
| Feb | 6.36 | 22.9 | 155 |
| Mar | 5.29 | 21.1 | 129 |
| Apr | 3.89 | 18.0 | 95 |
| May | 2.71 | 14.6 | 66 |
| Jun | 2.27 | 11.7 | 55 |
| Jul | 2.39 | 10.3 | 58 |
| Aug | 3.20 | 11.5 | 78 |
| Sep | 4.41 | 13.0 | 107 |
| Oct | 5.68 | 15.8 | 138 |
| Nov | 6.95 | 18.8 | 169 |
| Dec | 7.58 | 21.4 | 184 |
Solar potential of Montevideo explained
Montevideo receives an average of 4.84 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 1413 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. This places Montevideo among the stronger solar locations globally — comparable to southern Spain or California.
Frequently asked questions
Is solar worth it in Montevideo?
With 4.84 kWh/m²/day of average irradiation, a 1 kWp system in Montevideo produces roughly 1413 kWh per year. That is an excellent solar resource — payback periods are typically among the shortest worldwide.
How much electricity would a 5 kW system produce in Montevideo?
Approximately 7,000 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
São Paulo (4.5) · Rio de Janeiro (4.8) · Buenos Aires (4.6) · Santiago (5) · Bogotá (4.4) · Lima (5.1) · all cities →