Climate Change Chart of Mykonos, Greece

Overview of climate changes

Temperature changes

Across calendar months, the unweighted mean difference in monthly mean temperature was +1.26 °C in the more recent period; this aggregate does not mean every month changed by the same amount. The largest monthly increase was in August, at +2.02 °C. This describes the month’s mean temperature, not its daytime maximum, and says nothing by itself about daily variability.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of -0.21 mm/day. This is a comparison of monthly averages of daily amounts, not a difference in monthly rainfall totals or evidence that every month became drier. The largest monthly decrease was in December, with a difference of -1.25 mm/day; by contrast, September had the largest increase, at +0.25 mm/day. These contrasting monthly changes show why the overall mean does not describe each month’s rainfall conditions.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.08 hours/day. The largest monthly decrease was in April, at -0.43 hours/day, while the largest increase was in January, at +0.19 hours/day; these are changes in averages, not a forecast of clear or cloudy days.