Harlech Average Yearly Weather

Average weather in Harlech is normally about 13 degrees but does change as the seasons change.

Our weather insights say July is hottest with January is when its the coolest month meaning that temperatures vary by 10. Anticipate that average temperatures are 12 in Spring (Mar, Apr, May) 18 during Summer (June – Aug) and 12 during Autumn and 8 degrees in Winter.

MonthDegrees Celsius
January8
February8
March9
April12
May14
June17
July18
August18
September12
October14
November11
December9


When is the best time to go to Harlech?

Our weather insights helps decide the best time to go and visit Harlech

  • Typical Average Daily Temperature: 13
  • Typical Hottest Month: July
  • Typical Coldest Month: January
  • Average Spring Temperature: 12
  • Average Summer Temperature: 18
  • Average Autumn Temperature: 12
  • Average Winter Temperature: 8