Quarterly average daily sun hours in the United Kingdom 2010-2024

The quarterly average of daily sun hours has fluctuated over the years in the United Kingdom. In each year, there is an overall trend of higher daily sun hours in the second and third quarter, which comprises spring and summer time in the UK. During winter and autumn, the first and fourth quarter of each year, average daily sun hours are almost half of those recorded during summer time. Between 2010 and the third quarter of 2024, the quarter with the greatest sun hours was the second quarter of 2019, with 7.9 hours per day, whilst the fourth quarter of 2015 recorded a low of 1.8 hours per day.

英国年度季度平均每日日照时数在历年中有所波动。每年，第二季度和第三季度（即英国的春夏季）均呈现出日照时数整体上升的趋势。而在冬季及秋季，即每年的第一季度和第四季度，平均每日日照时数仅为夏季时的一半左右。在2010年至2024年第三季度之间，2019年第二季度以每日7.9小时的日照时数成为历年中日照时数最多的季度，而2015年第四季度则以每日1.8小时创下了历史新低。