Glendalough

Glendalough is a monastery and abbey located in a U-shaped valley in the Wicklow Mountains. It is a national monument of Ireland and is the 11th most looked-up sight in the country on English Wikipedia.
Planning a visit
Temperatures and rain levels change throughout the year. July is the warmest month with a high of 18 °C and a low of 11 °C. January and February are the coldest, with highs of 6 °C and lows of 1 °C to 2 °C. June has the lowest average rainfall with about 14 rainy days, while October is the wettest month with 151 mm of rain. November and December have the most rainy days, at about 20 per month.
The site is 38 km from Dublin and 47 km from Dublin Airport. Visitors can combine a trip here with visits to St Stephen's Green, Duckett's Grove, or Kilmainham Gaol, which are all about 37 km away. The National Gallery of Ireland and Christ Church Cathedral are also within 37.2 km. There is no fee to visit, but the site does not have wheelchair access.
Weather by month
The warmest month is July, with an average high of 18 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 6 | 7 | 8 | 10 | 13 | 16 | 18 | 17 | 15 | 12 | 9 | 7 |
| Average low, °C | 2 | 1 | 2 | 4 | 6 | 9 | 11 | 11 | 9 | 7 | 4 | 2 |
| Rainfall, mm | 136 | 101 | 110 | 98 | 105 | 94 | 87 | 103 | 108 | 151 | 148 | 145 |
| Rainy days | 16 | 16 | 17 | 13 | 13 | 14 | 17 | 17 | 15 | 17 | 20 | 20 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.