I flew to a funeral once, so I think it's a great idea!
Plan it with the assistance of the many ppruners on here who have crossed the Channel before but accept that you may well have to cancel the flight only a few days beforehand if you can't be assured of a settled period of weather. And even if the weather looks okay the day before, it might turn 'orrible the morning of your departure, be ready to jump in the car at the last moment and catch a ferry in order to be at the wedding.
Perhaps the best plan is to make it a 4/5 day trip so you can wait for a window in the weather and don't feel pressured into departing in marginal conditions.
Don't be put off by the fact that you are low-houred, there's a first time for everything and as long as you get lots of advice and prepare thoroughly, it'll be fine.
Best of luck!