Climate Change Chart of Tulum, Mexico

Overview of climate changes

Temperature changes

Monthly mean temperatures were higher by an unweighted mean difference across calendar months of +0.72 °C in the more recent period; this summarizes the monthly averages rather than daytime maximum temperatures, and does not imply the same change in every month. The largest monthly increase was in July, at a difference of +0.98 °C compared with the earlier reference period.

Changes in rainfall

Mean daily rainfall was higher by an unweighted mean difference across calendar months of +0.56 mm/day in the more recent period. This is a comparison of monthly mean daily amounts, not a change in monthly rainfall totals, and it does not mean every month became wetter. The largest monthly increase in mean daily rainfall occurred in October, with a difference of +2.26 mm/day compared with the earlier reference period. By contrast, July had the largest monthly decrease, a difference of -0.91 mm/day in mean daily rainfall.

Changes in sunshine duration

Mean daily sunshine duration was lower by an unweighted mean difference across calendar months of -0.22 hours/day in the more recent period. This describes the aggregate of monthly means, not a uniform decrease in every month. The largest monthly decrease was in June, with a difference of -0.85 hours/day in mean daily sunshine duration compared with the earlier reference period. In July, sunshine instead recorded the largest monthly increase, at a difference of +0.15 hours/day.