Solar Potential & Climate Data for Zagreb
Solar Overview
With 2,118 sun hours annually, Zagreb offers average solar conditions, especially during July. Located at 45.81°, seasonal solar fluctuations are noticeable but manageable, with winter production remaining economically viable. While not exceptional, Zagreb's solar conditions support viable solar installations with careful system design and realistic expectations.
Geographic Impact
Located at 45.8150° latitude and 15.9819° longitude, Zagreb's geographical position significantly impacts its solar potential. At 45.81°, the sun angle varies from approximately 70° in summer to 23° in winter, creating distinct seasonal production patterns that influence system design.
Rating Methodology
Zagreb receives a "Average" rating for solar potential, derived from comprehensive analysis of 2,118 annual sun hours, 14.6°C average temperature, and geographic factors. The cool environment benefits panel efficiency, with lower temperatures offsetting reduced irradiation during shorter winter days. Zagreb's solar conditions enable systems to generate 1,000-1,200 kWh per installed kW annually, supporting meaningful energy bill reductions.
Understanding the Data
The accompanying chart illustrates monthly solar irradiation patterns for Zagreb. Summer dominance is evident with 42% of annual production, while winter contributes a more modest 16%. This distribution pattern helps inform decisions about fixed versus tracking systems and optimal capacity design.
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