Even though it's a few months away, it's time once again to take a look at the coming Japanese season!!! A typical Japanese summer season looks like this: Average Maximum day time temperatures in Tokyo(back to 1876): Jan : 9.01 Feb : 9.42 Mar : 12.50 Apr : 17.96 May : 22.04 Jun : 25.00 Jul : 28.84 Aug : 30.46 Sep : 26.56 Oct : 21.01 Nov : 16.18 Dec : 11.50 For the last ten years, it looks a bit different: Jan : 9.95 Feb : 10.96 Mar : 14.15 Apr : 19.14 May : 22.86 Jun : 26.31 Jul : 30.07 Aug : 31.28 Sep : 27.64 Oct : 22.13 Nov : 17.04 Dec : 12.28 For summer temperatures, it must be remembered that the average daily maximum in both Sydney and Melbourne in the peak of summer (Feb) is about 3.5 degrees less than in August in Tokyo. So how has the current summer in Tokyo developed? Here are the figures for 2011: May : 22.2 Jun : 26.0 Jul : 30.9 Aug : 31.2 These are fairly close to average for the last ten years, except for July, which was around 0.8 degrees higher. The distribution of the temperature this year was a bit different though. May was close to average, but it was very cool early in the month, but was had a couple of 30 degree days plus a typhoon late in the month, which was unusual. Early June was cool, but then it got hotter than usual, and this persisted right through July. The first 3 seeks of August was a lot hotter than usual (probably averaging above 33 degrees), but a strangely cool period started on Aug 19th, with averages in the low - mid 20s, and persisted for about a week. This brought the average back to 31.2 degrees. In 2010, the hot weather persisted right the through September (2010 was a very hot summer in Japan, with Tokyo averaging 33.5 in Aug, with night time av min of 27.0 degrees) This seemed to correlate with the expectation of a hot summer associated with a La Nina. The feeling in 2011, is maybe slightly different to September 2010. The general feeling is that the summer has "turned the corner", even though the next week has 30-31 degrees forecast for Tokyo. Hokkaido should be warmer than average over the next few days, with the passage of the typhoon dragging warmer air from the south. There is talk that the La Nina may return in the next couple of months. Last year, it looks like the La Nina was responsible for the colder than average January, so we'll see how this develops!!!