Climate Change Chart of Koh Rong, Cambodia

Overview of climate changes

Changes in rainfall

Mean daily rainfall, averaged across calendar months, had a difference of -1.18 mm/day compared with the earlier reference period. This unweighted mean of monthly means is not a day-weighted annual average, and it does not imply that rainfall decreased in every month. The largest monthly decrease was in September, with a difference of -4.42 mm/day. By contrast, July recorded the largest monthly increase, a difference of +0.50 mm/day. These values describe mean daily amounts, not monthly rainfall totals.

Temperature changes

The mean difference in monthly mean temperature, averaged across calendar months, was an increase of +0.90 °C compared with the earlier reference period. This is an aggregate of monthly means, not a day-weighted annual average, and it does not mean that every month's temperature increased by the same amount. The largest monthly increase was in April, at a difference of +1.21 °C. These temperature figures describe monthly mean conditions rather than daytime maximum temperatures.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.23 hours/day compared with the earlier reference period. This unweighted summary of monthly means does not describe a change of the same size in every month. The largest monthly decrease occurred in July, at a difference of -0.78 hours/day, while April had the largest monthly increase, at a difference of +0.18 hours/day. These figures concern mean daily sunshine hours, rather than total sunshine over a month.