Newton Stewart Temperature by Month

The average annual maximum temperature in Newton Stewart, Dumfries and Galloway, United Kingdom is 13°C (55°F), with daytime highs ranging from 8°C (46°F) in January to 18°C (64°F) in July. This page covers monthly averages, day-night differences, and how Newton Stewart compares to cities worldwide.

The climate in Newton Stewart experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 12°C (54°F) in July to 3°C (37°F) in January.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.

The chart below shows the average temperature throughout the year:

Newton Stewart'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.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

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.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

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