Newcastleton Temperature by Month
The average annual maximum temperature in Newcastleton, Borders, United Kingdom is 13°C (55°F), with daytime highs ranging from 7°C (45°F) in January to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Newcastleton compares to cities worldwide.
Newcastleton Monthly Temperatures
Depending on the time of the year, temperatures range from pleasant to cold in Newcastleton. At night, minimum temperatures range from 11°C (52°F) in July to 1°C (34°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Newcastleton by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 151 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Newcastleton 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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Newcastleton vs World: Temperature Compared
Newcastleton'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:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Newcastleton?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Newcastleton, January is the coolest month, with average highs of 7°C (45°F) and humidity around 88% — considered very high. For a full picture, see our humidity page.
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 Newcastleton this rarely lasts long on the ground.
For more on Newcastleton's weather — including monthly rainfall, sunshine hours, and humidity — visit our Newcastleton climate page.
