As August draws to a close and we come ever closer to the beginning of this year’s vintage, the typical scorching summer temperatures of the Douro Valley have not materialised. While there have been several hot days, with temperatures in the high 30s (Celsius), until now August has been the first month of the 2014/15 viticultural year with temperatures below the mean.
However, owing to the drought conditions throughout most of the viticultural year, these lower than average temperatures in August are a real boon. With just 4.8mm of rain falling over Malvedos since the beginning of July (see previous post), lower temperatures reduce the possibility of excessive hydric stress. Charles Symington, head winemaker at Quinta dos Malvedos, reminds us that at this juncture air temperature is also extremely important for another reason.
Very high temperatures during the final maturation cycle can lead to higher sugar concentration in the berries to the detriment of acidity, which is of course very important for the wines’ balance and ageing potential. The lower than average daytime and nocturnal temperatures will ensure grapes with homogeneous maturations which will almost certainly result in very high quality wines.
In any case, with moderate rain forecast for tomorrow it looks like Malvedos will have the benefit of both relatively low temperatures and some useful additional water; meaning everything is still on track for a stellar harvest.
In the coming weeks regular posts will be published providing regular updates on the harvest at Quinta dos Malvedos.