How accurate is Metcheck? and can you add an extra day to a booked holiday?

[Alambil]

How accurate is the long-term forecast? Cos it says the day we arrive is raining, but the day before is bright...

so, could I ring the site and see if they'll let us on a day early? (i'd pay, of course!)

I find it does change as you get closer so I wouldn't change plans based on what it says for more than 4 days ahead

i wouldn't look further than next 3/4 days tbh

I always look at metcheck and netweather and weather.com and BBC & find they rarely match...

LOL! ok so I'll not panic yet - we aren't leaving til the 6th!