Climate Change Chart of Florianópolis, Brazil

Overview of climate changes

Temperature changes

Monthly mean temperature averaged across calendar months shows a difference of +0.50 °C compared with the earlier reference period; this is an unweighted summary of monthly means, not a day-weighted annual average or a measure of daytime maximum temperatures. The largest monthly increase was in January, with a difference of +1.12 °C. These figures describe differences between the two reference periods, not a continuous trend or conditions in every month.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of -0.46 mm/day compared with the earlier reference period. This is an unweighted summary of monthly means, not an annual total, and it does not imply that every month became drier. The largest monthly decrease was in January, with a difference of -2.59 mm/day; the largest monthly increase was in June, with a difference of +1.39 mm/day. The contrasting monthly differences show why the overall mean should not be read as a uniform change throughout the year.

Changes in sunshine duration

Mean daily sunshine duration averaged across calendar months had a difference of +0.04 hours/day compared with the earlier reference period. This unweighted summary of monthly means is not a day-weighted annual average and does not establish that sunshine increased in every month. The largest monthly increase was in July, with a difference of +0.66 hours/day, while the largest monthly decrease was in November, with a difference of -0.87 hours/day. These are comparisons between reference periods, rather than evidence of a continuous change between them.