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Bordeaux 2013 - pre-harvest report

27 Sep 2013 by Gavin Quinney

As the Bordeaux harvest begins, here is a detailed report on the weather so far this year and its impact on the vines.

It's fair to say that my earlier updates on the 2013 growing season in Bordeaux have been less than enthusiastic. Titles such as Running late in May, Bordeaux's blooming gloom in June, Lafite's weeping willows in July and August's Hail in Bordeaux - the path of destruction hardly paint a rosy picture.

Yet even at this stage at the end of September, this roller-coaster vintage is still too early to call. The weather in October for the red harvest (Bordeaux is 88% red) will be crucial. Even before then, storms are forecast for this weekend, after a week of sunshine.

To follow my harvest updates on Twitter, type the following in the Twitter search box: from:gavinquinney #bdx13

TEN THINGS WE DO KNOW
  • 2013 is an exceptionally late harvest. (Or should be.)
  • 2013 will be a small crop in Bordeaux overall.
  • A cold first half of the year held up growth in the vineyard.
  • An unusually cold, wet May and downpours in June led to late, uneven flowering.
  • July was hot and dry, August sunny, September up and down. October is key.
  • An August hailstorm hit more than 10,000 hectares - about 10% of the Bordeaux vineyard - but none of the top châteaux.
  • Quality and yields will be extremely variable - the contrast is evident in the vineyards.
  • The dry white harvest has started well, while prospects for sweet whites are 'promising'.
  • The red harvest is likely to be a race against time (and rot) as the autumn weather draws in.
  • The advantage lies with those who have the resources and equipment to be highly selective.

HIGHLIGHTS

A late harvest
It's late, even by 2012 standards. I happened to take these pictures of the same vine on the slope below Ch Tertre Roteboeuf at the end of August in recent vintages, which show colour change variation.

Tertre_Rb_10_11_12_13

Small crop
We began with une belle sortie de grappes - plenty of potential bunches. But Pomerol_22_Aug_09cold and wet weather in May and rain at just the wrong time in June contributed to poor fruit-set on the Merlot across the region. Some estates have fared better than others - in fact, some vines performed much better than their immediate neighbours.

Given that 65% of the red vineyards in Bordeaux are planted with Merlot, coulure (when grapes don't form) and millerandage ('hen and chicken') have had a significant impact on the crop. Cabernet Sauvignon, which makes up 23%, is variable while Cabernet Franc - just 10% - flowered most successfully. The Petit Verdot looks good but late in the Médoc, while Malbec is patchy on the right bank. The whites, and especially Sémillon, look in better shape.

I haven't seen such poor flowering, in general, since the summer of 2002.

To put volumes in perspective, Bordeaux made an average of 5.57 million hectolitres per year from 2006 to 2010, and 5.25 million hl in 2012. If yields are down by 24% on 2012, ie at 4 million hl, that's the equivalent of 533 million bottles.

Hail - in the stalls, not in the royal circle

Many reports will mention hail as a reason for the lower crop in 2013. This is partly true but the hailstorms caused heavy losses mainly in the Entre Deux Mers, the source of much AC Bordeaux and Bordeaux Supérieur. Of the best-known appellations, only St-Émilion was touched on the south-east fringe and none of Bordeaux's leading châteaux was hit.

hail_region


THE WEATHER CHARTS


Oct_Mar_chart_rain

Rainfall during the winter was slightly over the 30-year average in most sectors, and the most we've had in the last ten winters. We also had more days when it rained - about 100 depending on the area, compared with an average of 69 days. December and January were the wettest months.

Monthly temperatures were close to the 30-year average until February, which was 2 °C below average (5.7 ˚C v 7.7 ˚C), and March, 1.5 °C below (8.6 ˚C v 10.1 ˚C).

April - a chilly, late start

Apr13_rain

After a cold February and March, April saw fluctuating temperatures. Budbreak was a bit later than usual and morning frosts at the end of the month were a threat. The rainfall measured here, some 15 miles south east of the city of Bordeaux, and at nearby St-Émilion, was lower than in other parts of Bordeaux: there was 60-70 mm in the Médoc. But thankfully no repeat of the heavy April downpours of 2012 (160-200 mm).

With March (60 mm) and April both having average or lower rainfall than the average, I don't think of the spring of 2013 as being wet. May and June on the other hand…

May - a shocker

May13_rain

After a promising start, May was fearfully chilly and wet, and the vines never got going. The temperature of the subsoils stayed lower than in previous vintages in the second half of the month, and this was reflected in the retarded height of the vine canopy everywhere.

If you add the cumulative average temperatures above 10 ºC, recorded in Léognan from 1 January to 31 May, compared with recent vintages, 2013 is way behind:

2008 - 347º; 2009 - 326º; 2010 - 325º; 2011 - 492º; 2012 - 331º; 2013 - 212º.

Bauduc_2011v2013

Given the correlation between temperature and flowering, and that mid flowering occurred around 8-10 June for the 2008, 2009, 2010 and 2012 vintages (20 May for 2011), it's easy to see why the flowering in 2013 was going to be much, much later.

June - rain during late flowering

Jun13

Bauduc_Flowering_June_2013A good first week then heavy rain on 8 June. Then, just as the vines came into flower, we had much more rain than usual and at the wrong moment for the flowering, which was already late. It seemed that the vines were splitting their energies between further growth and flowering at the same time - in the rain - so poor fruit set on the Merlot was inevitable.

The results are mixed, though - some vines are badly effected, whereas a few paces along, the flowering was more successful. Visitors to Vinexpo might recall a baking Sunday and then a filthy Monday night and Tuesday. The flowering vines were similarly confused.

July - a scorcher

Jul13

July was a complete contrast to the months before, with 21 scorching days over 30 °C. The first half and middle of July is rarely so consistently hot in Bordeaux.

The sun was most welcome to holidaymakers and wine tourists, who, based on this evidence, think that growing grapes must be a doddle.

Most of the rain for the month came with heavy storms on the night of Friday 25 July. (See Lafite's weeping willows.) Worse was to fall on Genissac, south of Libourne, with the first of the summer's hail.

August - don't mention the hail

Aug13

A terrible start to the month for some, with a devastating storm on the evening of Friday 2 August. Hail tore through about 10,000 hectares of vines, mainly in the Entre Deux Mers - see the map above. See also Hail in Bordeaux, part 1 and part 2.

Fine weather set in after the first week. Veraison was very late, although this wasn't surprising given how retarded the flowering had been. It was the first vintage I'd seen where no grapes had changed colour by the start of August in the early -ripening vineyards of Pomerol. First signs of veraison in the Médoc and in St-Émilion were to be seen in the middle of the month. That's late.

September - up, down, up...

Sep13

Medoc_2_Sept_2013___20The grapes are still changing colour in some vineyards at the start of the month. A bright start, then cool and drizzle. The third week has seen welcome sunshine, reviving hopes.

At the mid point, the vineyards are looking green and healthy. Ready for the long wait ahead?

They started picking the dry whites in Pessac-Léognan in the sunshine, and even the first pass for Sauternes at Yquem.

Bon courage à tous. We're going to need it.
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