Leiston Temperature by Month
The average annual maximum temperature in Leiston, Suffolk, United Kingdom is 14°C (57°F), with daytime highs ranging from 8°C (46°F) in February to 21°C (70°F) in August. This page covers monthly averages, day-night differences, and how Leiston compares to cities worldwide.
Leiston Monthly Temperatures
The climate in Leiston is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 15°C (59°F) in August to 4°C (39°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Leiston by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 200 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Leiston 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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Leiston vs World: Temperature Compared
Leiston'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:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
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 Leiston's weather — including monthly rainfall, sunshine hours, and humidity — visit our Leiston climate page.
