I'm starting my travels of Asia in July but I'm not sure where to begin. I know this is a bad time of year in some places because of the monsoon seasons or really high temperatures. Does anyone have any advice on where would be a good place to start so I wouldn't be affected by this too much?
Also, I'm just beginning all my research etc. I've got a few Lonely Planet guides but can anyone recommend some really good advice websites / blogs?
It's the south-west monsoon season during this time of the year. Expect the regions on the west coast, especially those close to the sea, to experience more/heavier rainfalls. However, rains don't come all the time, and normally they are afternoon downpours -- very heavy, but don't last long (possibly an hour or two). Don't worry too much about it, as the rain can be a welcoming thing to have because it really cools down the hot weather for the next few hours.
If you want to avoid a combination of wet and hot weather, why don't you start in Tibet if you can? Probably the only place in that region that is a bit more comfortable relatively speaking.
Temperatures are perfect during those months, although they are wetter compared to spring and/or autumn. But around 100 mm a month in Lhasa on average. That really is not bad, just a few showers.
Why not begin from India?
U can explore the colourful state of Rajasthan, before embarking on a tough but enjoyable journey to the wonderland of Leh and Laddakh. The Manali-Leh road is open only during July- September, so u can experience that epic trans Himalayan journey too encountering numerous mountain passes(some of them as high as 6000 metres) on the way.
Once u r in Leh, u can take excurions to Pangong Lake, part of which is in India and rest of it in China. U can also take a 1/2 day excursion to the Nubra Valley encountering the highest motorable road in the world, on the way to the cold desert !!