Arthog Temperature by Month
The average annual maximum temperature in Arthog, Gwynedd, United Kingdom is 14°C (57°F), with daytime highs ranging from 8°C (46°F) in February to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Arthog compares to cities worldwide.
Arthog Monthly Temperatures
Visitors to Arthog will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 12°C (54°F) in July to 3°C (37°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Arthog by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 155 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Arthog vs the United Kingdom
The map below shows the annual temperature across the United Kingdom. You can also select individual months if you want to compare a specific time of year.
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Arthog vs World: Temperature Compared
Arthog'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:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Arthog's weather — including monthly rainfall, sunshine hours, and humidity — visit our Arthog climate page.
