Llanrwst Temperature by Month

Llanrwst, Gwynedd, United Kingdom has an average annual maximum temperature of 13°C (55°F), ranging from 8°C (46°F) in January to 20°C (68°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

In Llanrwst, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 12°C (54°F) in July to 2°C (36°F) in January.

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

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 155 hours of sunshine.

The chart below shows the average temperature throughout the year:

Llanrwst'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.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

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