London is a city that can be visited year-round, but its weather changes noticeably from season to season. From crisp winter mornings to long summer evenings, understanding London weather by month helps travelers pack properly, plan activities, and choose the best time to visit.
This complete guide breaks down monthly temperatures, rainfall, daylight, and what each season feels like for visitors.
Overview of London’s Climate
London has a temperate maritime climate, which means:
- Mild summers
- Cool winters
- Rain possible in any month
- Few extreme temperature swings
Weather can be unpredictable, so layers and an umbrella are always a good idea.
London Weather by Month
| Month | Avg High | Avg Low | Weather Highlights |
|---|---|---|---|
| January | 46°F (8°C) | 37°F (3°C) | Cold, short days, fewer crowds |
| February | 48°F (9°C) | 37°F (3°C) | Chilly, slowly increasing daylight |
| March | 52°F (11°C) | 39°F (4°C) | Early spring, mild showers |
| April | 57°F (14°C) | 42°F (6°C) | Fresh air, spring blooms |
| May | 64°F (18°C) | 48°F (9°C) | Mild, one of the best months |
| June | 70°F (21°C) | 54°F (12°C) | Long daylight, pleasant weather |
| July | 73°F (23°C) | 58°F (14°C) | Warmest month, busy season |
| August | 72°F (22°C) | 57°F (14°C) | Warm, summer crowds |
| September | 66°F (19°C) | 52°F (11°C) | Comfortable, fewer tourists |
| October | 59°F (15°C) | 46°F (8°C) | Cool, autumn colors |
| November | 52°F (11°C) | 41°F (5°C) | Cool, gray, quieter city |
| December | 48°F (9°C) | 38°F (3°C) | Cold, festive atmosphere |
January: Cold and Quiet
- Average High: 46°F (8°C)
- Average Low: 37°F (3°C)
January is one of the coldest months in London. Days are short, and skies are often gray. Snow is possible but usually light. Fewer tourists make it a good time for museums, theater, and indoor attractions.
Best for: Budget travel, cultural sightseeing
February: Chilly but Improving
- Average High: 48°F (9°C)
- Average Low: 37°F (3°C)
February remains cold, but daylight slowly increases. The city starts to feel less quiet, and parks begin to show early signs of spring by month’s end.
Best for: Couples, off-season travelers
March: Early Spring Arrives
- Average High: 52°F (11°C)
- Average Low: 39°F (4°C)
March marks the beginning of spring. While still cool, flowers begin to bloom and outdoor walks become more enjoyable. Rain showers are common but usually brief.
Best for: Sightseeing, walking tours
April: Mild and Fresh
- Average High: 57°F (14°C)
- Average Low: 42°F (6°C)
April brings noticeably warmer days and longer daylight hours. Parks such as Hyde Park and Regent’s Park are vibrant with spring blooms. Rainfall increases slightly.
Best for: Parks, photography, outdoor cafes
May: One of the Best Months to Visit
- Average High: 64°F (18°C)
- Average Low: 48°F (9°C)
May offers mild temperatures, blooming gardens, and relatively low rainfall. The city feels lively without peak-season crowds.
Best for: First-time visitors, outdoor sightseeing
June: Warm and Bright
- Average High: 70°F (21°C)
- Average Low: 54°F (12°C)
June brings long daylight hours, sometimes lasting until 10 p.m. The weather is generally pleasant, though occasional rain showers still occur.
Best for: Outdoor attractions, festivals
July: Warmest Month
- Average High: 73°F (23°C)
- Average Low: 58°F (14°C)
July is typically the warmest month in London. Heatwaves can happen but are usually short-lived. Crowds increase as summer holidays begin.
Best for: Summer events, river cruises
August: Warm with Summer Crowds
- Average High: 72°F (22°C)
- Average Low: 57°F (14°C)
August remains warm and busy. Many locals take holidays, but major attractions stay open. Rain is still possible.
Best for: Festivals, family travel
September: Mild and Comfortable
- Average High: 66°F (19°C)
- Average Low: 52°F (11°C)
September offers pleasant temperatures and fewer crowds. The city transitions into autumn with cooler evenings and golden park scenery.
Best for: Relaxed travel, photography
October: Cool Autumn Weather
- Average High: 59°F (15°C)
- Average Low: 46°F (8°C)
October brings crisp air and colorful fall foliage. Rainfall increases, but the atmosphere is cozy and charming.
Best for: Fall walks, museums, cafes
November: Cool and Gray
- Average High: 52°F (11°C)
- Average Low: 41°F (5°C)
November is cooler with shorter days. Tourist numbers drop, making it a good time for indoor attractions and pre-holiday shopping.
Best for: Off-season deals, museums
December: Festive and Cold
- Average High: 48°F (9°C)
- Average Low: 38°F (3°C)
December is cold but festive. Christmas markets, decorations, and seasonal events create a magical atmosphere despite the chill.
Best for: Holiday travel, Christmas events
Best Time to Visit London
- Best Overall Weather: May, June, September
- Best for Sightseeing: April–June, September–October
- Best Budget Travel: January, February, November
- Most Festive Time: December
London Weather FAQs
1. What is the best month to visit London?
May, June, and September offer the best combination of mild weather, longer daylight hours, and manageable crowds.
2. What is the warmest month in London?
July is usually the warmest month, with average highs around 73°F (23°C).
3. What is the coldest month in London?
January is typically the coldest month, with average lows around 37°F (3°C).
4. Does London have four seasons?
Yes, London experiences all four seasons, though temperatures are generally moderate.
5. Does it rain a lot in London?
London has frequent light rain throughout the year, but heavy rain is uncommon.
6. What is the rainiest month in London?
October and November are often the wettest months, though rainfall is spread fairly evenly year-round.
7. Does it snow in London?
Snow is possible in winter but usually light and short-lived.
8. Is London hot in summer?
Summers are generally mild, but occasional heatwaves can push temperatures above 86°F (30°C).
9. What is London like in spring?
Spring brings blooming parks, mild temperatures, and longer daylight, making it a popular time to visit.
10. Is autumn a good time to visit London?
Yes, autumn offers cooler weather, fewer crowds, and beautiful fall colors in the parks.
11. What should I pack for London in summer?
Pack light layers, comfortable walking shoes, and a light jacket for cooler evenings.
12. What should I pack for London in winter?
Bring a warm coat, sweaters, waterproof shoes, and an umbrella.
13. Is London weather unpredictable?
Yes, weather can change quickly, so dressing in layers is recommended.
14. When are the longest days in London?
June has the longest daylight hours, with sunset as late as 9:30–10:00 p.m.
15. When are the shortest days in London?
December has the shortest days, with sunset around 4:00 p.m.
16. Is London humid?
Humidity is generally moderate and rarely uncomfortable.
17. When is the cheapest time to visit London?
January, February, and November usually offer the lowest prices and fewer tourists.
18. Is London good to visit year-round?
Yes, London is a year-round destination with attractions suitable for any season.
19. What is London like in December?
December is cold but festive, with Christmas markets, decorations, and seasonal events.
20. How cold does London get in winter?
Winter temperatures usually range from 37–48°F (3–9°C), rarely dropping far below freezing.
Final Thoughts
Understanding London weather by month allows travelers to plan smarter, pack better, and enjoy the city to its fullest. Whether you prefer summer sunshine, spring blooms, or festive winter charm, London offers something special in every season.
No matter when you visit, be prepared for changing weather—and you’ll be rewarded with one of the world’s most fascinating cities.