Letterbreen Temperature by Month

The average annual maximum temperature in Letterbreen, Fermanagh County, United Kingdom is 13°C (55°F), with daytime highs ranging from 8°C (46°F) in January to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Letterbreen compares to cities worldwide.

The moderate changes in the climate in Letterbreen ensure gradual weather shifts through each season. At night, temperatures drop to between 12°C (54°F) and 3°C (37°F) depending on the time of year.

The chart below illustrates the average maximum day and minimum night temperatures in Letterbreen by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.

The chart below shows the average temperature throughout the year:

Letterbreen's average annual maximum temperature is 13°C (55°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Letterbreen this rarely lasts long on the ground.

For more on Letterbreen's weather, including monthly rainfall, sunshine hours, and humidity, visit our Letterbreen climate page.