London May — sunlight filtering through tall trees in Hyde Park on a warm spring afternoon

Best time to visit London for good weather

When is the best weather in London? Monthly breakdown of temperature, rainfall, and sunshine hours — ranked by what actually matters for your trip.

Best month

May

Chelsea Flower Show, warm parks, 18°C — London at its most seductive before summer prices arrive.

Chelsea Flower Show (third week of May): world-famous garden event with real local excitement around it

Royal Parks in full green: Londoners picnic in Hyde Park, Regent's Park, and Hampstead Heath in earnest

Sunset at 21:00 and 18°C highs make evening walks along the Thames or South Bank genuinely lovely

All months ranked — Good weather

May

Best match

Chelsea Flower Show, warm parks, 18°C — London at its most seductive before summer prices arrive.

#1 for good weather

June

Best match

Pride, Wimbledon warm-up, 21°C and sunset at 21:20 — London's most event-rich month.

#2 for good weather

April

Best match

London's great value window — warm enough for parks, light until 8pm, before summer prices hit.

#3 for good weather

July

Best match

London's hottest month — Wimbledon, outdoor concerts, and peak prices with school holidays looming.

#4 for good weather

September

Best match

London's best-kept secret — 20°C, schools back, crowds thin, and the autumn cultural season opens.

#5 for good weather

August

Strong option

Notting Hill Carnival bank holiday weekend — and everywhere else, maximum crowds and expense.

#6 for good weather

March

Strong option

Spring stirs — daffodils in Hyde Park, daylight returning, and prices still well below peak.

#7 for good weather

October

Strong option

Autumn London at a good price — October half-term aside, crowds are manageable and culture is rich.

#8 for good weather

February

Strong option

London's driest winter month — marginally brighter than January, with BAFTA and half-term energy.

#9 for good weather

November

Worth considering

The quiet before Christmas — good theatre prices, empty galleries, and only 2 hours of daylight.

#10 for good weather

January

Worth considering

Empty museums, cheapest hotels — but barely 2 hours of daylight make this the toughest trade-off.

#11 for good weather

December

Worth considering

Christmas lights on Regent Street, mulled wine in Borough Market — cold but London earns its festive reputation.

#12 for good weather

Other priorities for London

Good weather in other destinations

Scores are directional — designed to compare months within London, not to make precise claims. Full methodology →