Whether you're visiting Mayo in Ireland during the peak of August (19°C (66°F)) or the cooler months around January (9°C (48°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Westport, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Mayo experiences varying average temperatures all year, without any months of consistently pleasant weather.
The colder months are generally January, February and December.
When it comes to rainfall, Mayo experiences moderate variations in precipitation across the seasons. You can expect around 133 mm (5.2 in) of rain in December, dropping to 93 mm (3.7 in) in April.
May is the sunniest period, with ideal conditions for exploring the region and all it has to offer.
