Climate Change Chart of Ho Chi Minh City, Viet Nam

Overview of climate changes

Changes in sunshine duration

Averaged across calendar months, mean daily sunshine duration shows a difference of -0.45 hours/day in the more recent period. This is an unweighted comparison of monthly means, not a day-weighted annual average, and it does not imply the same difference in every month. The largest monthly decrease was in July, with a difference of -1.35 hours/day in mean daily sunshine duration. The largest monthly increase, in March, was much smaller in scale, with a difference of +0.05 hours/day; these are month-specific daily averages.

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +1.13 °C in the more recent period. This is an unweighted average of the monthly means, not a day-weighted annual average, and it describes the overall difference between the reference periods rather than a continuous trend. The largest monthly increase was in January, with a difference of +1.59 °C compared with the earlier period. These are monthly mean temperatures, not daytime maximum temperatures.

Changes in rainfall

Averaged across calendar months, mean daily rainfall has a difference of +0.75 mm/day in the more recent period. This unweighted comparison of monthly means is not a day-weighted annual average, and the daily figures should not be read as monthly rainfall totals. The largest monthly increase in mean daily rainfall occurred in June, with a difference of +1.61 mm/day. By contrast, the largest monthly decrease was in March, with a difference of -0.41 mm/day. These are changes in daily averages for the named months, not changes in monthly totals.