Chepstow Temperature by Month
Chepstow in Gwent, United Kingdom sees significant seasonal temperature differences, with daytime highs between 9°C (48°F) in February and 22°C (72°F) in July, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.
Chepstow Monthly Temperatures
In Chepstow, temperatures can shift dramatically between warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 13°C (55°F) in July to 3°C (37°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Chepstow by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 219 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Chepstow 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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Chepstow vs World: Temperature Compared
Chepstow's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to 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.
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 Chepstow's weather — including monthly rainfall, sunshine hours, and humidity — visit our Chepstow climate page.
