Climate Change Chart of Funchal, Portugal

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperatures were higher by a difference of +0.34 °C in the more recent period; this unweighted mean describes the month-by-month averages, not daytime maximum temperatures or the change in every month. The largest monthly increase was in May, with a difference of +0.81 °C. By contrast, November had the largest monthly decrease, a difference of -0.13 °C, showing that the overall mean increase did not apply uniformly across months.

Changes in rainfall

Mean daily rainfall had an unchanged difference of 0.00 mm/day when averaged across calendar months. This is an unweighted mean of monthly averages, not a day-weighted annual figure, and the rounded result does not mean that rainfall was unchanged in every month. The largest monthly increase in mean daily rainfall occurred in June, at a difference of +1.71 mm/day. The largest decrease was in November, with a difference of -0.80 mm/day; these daily means describe monthly conditions rather than monthly rainfall totals.

Changes in sunshine duration

Mean daily sunshine duration decreased by a difference of -0.43 hours/day averaged across calendar months. This unweighted mean of monthly averages summarizes the comparison without implying that each month had less sunshine. The largest monthly decrease was in April, where mean daily sunshine duration had a difference of -0.68 hours/day. This monthly detail identifies the strongest decrease among the supplied facts, rather than describing sunshine on every day.