Climate Change Chart of Macau, Macao

Overview of climate changes

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +0.69 °C. This is an unweighted comparison of monthly means, not a day-weighted annual average or a statement that every month warmed by the same amount. The largest monthly increase was in November, with a difference of +1.37 °C; that identifies the most pronounced increase, not the change in daytime maximum temperatures.

Changes in rainfall

Mean daily rainfall averaged across calendar months had a difference of +1.66 mm/day. This unweighted mean of monthly averages is not an annual total, and it does not imply that rainfall increased in every month. The largest monthly increase occurred in August, where mean daily rainfall had a difference of +5.62 mm/day. These figures describe average daily amounts rather than monthly rainfall totals.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.79 hours/day. This unweighted comparison summarizes monthly mean daily hours; it does not mean that sunshine declined by the same amount in each month. The largest monthly decrease was in March, with a difference of -1.26 hours/day, marking the strongest monthly reduction rather than a uniform change across the year.

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference of 0.00 mm/day at the displayed precision. This rounded result indicates no difference in the reported monthly-mean average at that precision; it does not establish that snowfall was absent or unchanged at finer precision in every month. The measure is a mean daily amount, not a monthly snowfall total.