Climate Change Chart of Stanley, Falkland Islands (Malvinas)

Overview of climate changes

Temperature changes

Averaged across calendar months, the monthly mean temperature difference was +0.91 °C. This is an unweighted comparison of monthly means, not a day-weighted annual average or a measure of daytime highs. The largest monthly increase was in November, at +1.89 °C; that identifies the strongest increase among the monthly comparisons, rather than implying the same difference in every month.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of -0.39 mm/day. This is a comparison of daily averages across months, not a change in monthly rainfall totals or in the number of rainy days. The largest monthly decrease was in January, at -1.04 mm/day, while the largest increase was in September, at +0.20 mm/day; these contrasting results show why the overall average does not describe every month's difference.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of -0.33 hours/day. The largest monthly decrease was in April, at -0.75 hours/day, while the largest increase was in June, at +0.15 hours/day. These are changes in average daily hours, not guarantees about sunshine on particular days.