London in September
Great time to visit
One of London's most underrated months with crisp, comfortable weather and beautiful early autumn colors. Crowds thin out slightly from summer peaks while weather remains excellent for sightseeing. Great value compared to peak summer prices.
Weather
September brings London's second spring with mild, crisp days and cool evenings perfect for walking. Rainfall increases to about 9 days, but showers are usually brief. Morning fog becomes more common, and autumn colors begin appearing in the parks by month's end.
19°C high11°C low9 rain days
Crowds & Cost
high crowds
~$175/day average
Events & Festivals
- •London Design Festival
- •Open House London weekend
- •Totally Thames festival
September Tips
- •Perfect weather for long walks through neighborhoods like Hampstead
- •Open House London offers free access to normally closed buildings
- •Pack layers as morning temperatures can be 8°C cooler than afternoon
All Months
May through September offers the best weather odds, but London's charm doesn't depend on sunshine. Summer brings festival season—from Wimbledon in June to the Proms in July and August. Hyde Park fills with outdoor concerts, and every pub spills onto the sidewalks during those rare 25°C days.
April and May see fewer crowds and blooming parks, especially in Regent's Park where the roses put on a show. October delivers autumn colors in Hampstead Heath and Richmond Park, plus the London Film Festival brings star sightings to Leicester Square.
Winter means Christmas markets, ice skating at Somerset House, and theater season in full swing. The days are short but the city glows under streetlights. Just pack layers—London weather changes faster than the Queen's Guard rotation. Rain gear isn't optional; it's survival equipment.
London Scores
Solo
10/10
Couples
8/10
Families
9/10
Adventure
6/10
Budget
5/10
Luxury
10/10
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