In reply to Tareq.

While the WCEU dates for 2017 may not be ideal for you, Ramadan in 2018 is 16th May - 14th June, so assuming a similar date for the WCEU 2018 as 2017 or 2016, it should be somewhat easier for you to attend.

There are lots of factors involved with choosing a specific date for a WordCamp - existing WordCamps and other tech conferences, special events, and of course the availability of the desired venue. WordCamp London even waits until the football fixtures are announced so we don't choose a weekend when Arsenal are playing at home, as our venue is very close to their stadium. I'd guess that the anticipated weather isn't the sole reason for picking the WCEU 2016 dates that unfortunately clash with Ramadan.