Benllech Temperature by Month

The average annual maximum temperature in Benllech, Gwynedd, United Kingdom is 14°C (57°F), with daytime highs ranging from 9°C (48°F) in January to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Benllech compares to cities worldwide.

Benllech sees moderate fluctuations in temperatures, making each season distinct yet not extreme. Nights are considerably cooler, with lows ranging from 13°C (55°F) in July to 4°C (39°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Benllech 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:

Benllech's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

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

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 Benllech this rarely lasts long on the ground.

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