Best Solar Panel Angle in Tokyo: Optimal Tilt & Monthly Table

What angle should solar panels be at in Tokyo? Best tilt from PVGIS weather data, yield per angle, summer/winter adjustment. Noon sun in June 78°, in December 31°.

The best angle for each month in Tokyo

  • The best tilt from five years of hourly weather at your location – with a yield curve, a summer/winter adjustment plan and a month-by-month table.
  • Angle at which the noon sun on the 21st hits a south-facing panel square on:
  • January: 56° · Noon sun height 34°
  • February: 46° · Noon sun height 44°
  • March: 35° · Noon sun height 55°
  • April: 24° · Noon sun height 66°
  • May: 16° · Noon sun height 74°
  • June: 12° · Noon sun height 78°
  • July: 15° · Noon sun height 75°
  • August: 24° · Noon sun height 66°
  • September: 35° · Noon sun height 55°
  • October: 46° · Noon sun height 44°
  • November: 56° · Noon sun height 34°
  • December: 59° · Noon sun height 31°