Solar Panel Tilt Angle for Latitude 45°

Annual, summer, and winter optimal angles for 45° latitude

Optimal Tilt Summary

Annual AverageSummer OptimalWinter Optimal
40.5°30°60°

Monthly Optimal Tilt Angle

MonthOptimal Angle
Jan66.3°
Feb58.3°
Mar47.8°
Apr35.6°
May26.2°
Jun21.7°
Jul23.5°
Aug31.2°
Sep42.8°
Oct54.6°
Nov64.1°
Dec68.3°

Nearby Latitude Comparison

LatitudeAnnual AverageSummer OptimalWinter Optimal
35°31.5°20°50°
40°36°25°55°
45° →40.5°30°60°
50°45°35°65°
55°49.5°40°70°