Extremen Precipitation

Heavy precipitation events are likely to become significantly more frequent and intense in the future compared to today. This is the case for all seasons, but particularly for monsson. Rare extreme events such as 100-year precipitation events will be markedly more intense.

	Summer precipitation	Longest dry period in summer	Summer temperature
Possible around mid-century	-25% t0 +10%	-25% t0 +10%	-25% t0 +10%
Possible by the end of the century	-25% t0 +10%	-25% t0 +10%	-25% t0 +10%

This trend is expected to continue in the future. In the case of unchecked climate change, the heaviest single-day precipitation events in winter would intensify by an additional 10 percent by the middle of this century; by the end of the century, the expected increase is 20 percent. In summer, the increase is about 10 percent. In the other seasons, the changes are between those for winter and summer.

The very rare precipitation events that occur once every 100 years will see increases as well. The change amounts to about 10 to 20 percent by mid-century, and about 20 percent by the end of the century. Thus, despite reductions in total amounts of precipitation in summer, the intensity of extreme events will increase.

However, the changes in heavy precipitation events vary over time and across regions and may deviate from the long-term trend over several decades. The increased intensity of heavy precipitation events can have significant cost implications. For instance, heavy precipitation can cause landslides and flooding and thus result in widespread damage. Consequently, infrastructure such as flood protection and sewage networks must be properly designed to cope with these threats.

A noticeable reduction in precipitation during the summer months is expected in the future. Although we are still experiencing a similar amount of rainfall on an average rainy day in summer as in the past, there are now more days without rain. The longest dry period in summer may last about a week longer on average by the middle of the century.
A noticeable reduction in precipitation during the summer months is expected in the future. Although we are still experiencing a similar amount of rainfall on an average rainy day in summer as in the past, there are now more days without rain. The longest dry period in summer may last about a week longer on average by the middle of the century.
A noticeable reduction in precipitation during the summer months is expected in the future. Although we are still experiencing a similar amount of rainfall on an average rainy day in summer as in the past, there are now more days without rain. The longest dry period in summer may last about a week longer on average by the middle of the century.