The months May, June, July, August and September have nice weather with a good average temperature. Most rainfall (rainy season) is seen in July and August. Tianjin has dry periods in January, February, March, April, November and December. Cold season / winter is in the months January and February. On average, the warmest month is August. On average, the coolest month is January.
The research brewery has inspired such beers as Guinness Blonde American Lager, Nitro IPA, and West Indies Porter. At the moment, the brewery is playing with an imperial dunkel weisse (a strong, dark German-style wheat beer), an amber Vienna-style lager, and a Belgian-influenced Antwerpen Stout.
In Dublin, the Guinness is brewed using water from a Spring which occurs naturally somewhere near the brewery. In London, the Guinness is brewed from good old Thames Water (not from the river, the stuff the  Thames Water  company pumps down the mains).