Over the years, quite a few people have asked for historical weather data for a range of reasons, such as planning events at sea and working out which months of the year are likely to be wetter, dryer or sunnier so they can plan their trips to the island.  

We have also received a number of requests from Ynys Môn County Council to provide them with data for specific periods to assist them with environmental health studies from time to time.

You can gain access to historical data (some of which dates back to 2018) at Weather Underground and the Met Office WOW sites, links to which are provided below.

Weather Underground

Met Office WoW