Britain has four distinct seasons, none of them extreme. What genuinely surprises visitors is not the temperature but the light — the swing between long June evenings and short December afternoons is far greater than the mild climate suggests.
The daylight
Britain lies much further north than most people realise — London is level with Calgary, and Edinburgh with Moscow. The Gulf Stream keeps it warm, but latitude governs the light.
- Midsummer — London gets over 16 hours of daylight, with dusk lingering past ten at night. Northern Scotland gets 18 hours and never truly dark skies, a phenomenon Shetlanders call the simmer dim.
- Midwinter — under eight hours in London, and less than seven in Scotland. It is dark by four in the afternoon in December, which visitors find genuinely disorienting.
The clocks go forward an hour on the last Sunday in March and back on the last Sunday in October — British Summer Time and GMT. The evening the clocks go back is a small annual national low point.
Spring — March to May
Britain’s best season, and the one that produces the most enthusiasm. It arrives in stages that people genuinely watch for: snowdrops in February, daffodils in March, blossom in April, and bluebells in ancient woodland in late April and early May — Britain holds around half the world’s bluebell woods, and visiting one is a minor national pilgrimage.
Lambs appear in the fields, the clocks go forward, and the first warm weekend produces a nationwide outbreak of barbecues on insufficient evidence.
Summer — June to August
Warm rather than hot, typically 18-24°C, with occasional heatwaves that the country handles badly — British homes are built to retain heat, air conditioning is rare, and railway tracks buckle. The record of 40.3°C was set in July 2022.
It is also the season of long evenings, cricket, festivals, pub gardens and school holidays through late July and August.
Autumn — September to November
Often the most reliable weather of the year. September can be warmer and drier than August, and the autumn colour in October is superb in the Lake District, the Chilterns and the New Forest.
Conkers fall, the clocks go back, and the season runs through harvest, Halloween, Bonfire Night and Remembrance Sunday in quick succession.
Winter — December to February
Grey, wet and mild rather than cold. Temperatures hover a few degrees above freezing in the south, and snow is uncommon and rarely lasts more than a few days. The genuine difficulty is not cold but darkness — weeks of short days under thick cloud, with sunshine hours in December among the lowest in Europe.
Christmas sits deliberately at the low point, and January and February are widely regarded as the hardest part of the British year.