Seaham Temperature by Month
Seaham, Durham, United Kingdom has an average annual maximum temperature of 14°C (57°F), ranging from 8°C (46°F) in January to 20°C (68°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Seaham Monthly Temperatures
In Seaham, temperatures can shift dramatically between pleasant 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 January.
The chart below illustrates the average maximum day and minimum night temperatures in Seaham 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 187 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Seaham 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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Seaham vs World: Temperature Compared
Seaham'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Seaham's weather — including monthly rainfall, sunshine hours, and humidity — visit our Seaham climate page.
