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Northern Europe faced a gloomy December with solar irradiance 30% below average due to persistent cloud cover, while the Iberian Peninsula and Northern Italy enjoyed up to 30% above-average irradiance.

While the Midwest achieved solar irradiance gains of up to 10% above average in 2024, coastal regions, including California and the Gulf Coast, experienced below-average sunshine due to persistent cloud cover and weather systems.

Despite 2024 being the second hottest year on record, solar irradiance varied significantly across regions. Check the full analysis using the Solcast API.

Solar generation this Christmas will vary widely, with cloudy weather in the Americas, sunshine for Australia, and mixed patterns across Europe and Asia.

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While storms and persistent rainfall suppressed irradiance in parts of Southeast Asia, a clear sky condition boosted solar production across the Korean Peninsula, Northern Japan, and most of the Philippines.

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Winter storms in Northern Europe drove solar deficits in November, while Southern Europe experienced clear skies, with Italy seeing a 22% solar generation boost.

Despite widespread clouds, Southern Texas, Florida, and the Northeast saw clearer skies, boosting solar generation by 10% above a typical November.

Supporting seamless integration, the Solcast C# SDK gives .NET and C# developers another tool to quickly access solar API and focus on building solar solutions.

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Europe’s first widespread snow event of the season brings challenges for solar generation modeling. Learn how snow soiling impacts PV performance and why explicit modeling is crucial for accurate forecasts.

Seasonal forecasts suggest cloudier-than-usual weather for Australia’s East Coast, potentially reducing solar generation by up to 10% in some regions.