The London historical weather page is built for travel planning and destination comparison, covering monthly temperature, rainfall, rainy days, and sunshine trends from 2015 through the latest complete month. Best time to visit London. Searches for the best time to visit London usually need monthly temperature, rainfall, and rainy-day context. Use the month-by-month view to find comfortable travel windows instead of relying only on annual averages. London average temperature by month. For queries such as London weather in April, London temperature in August, or London historical rainfall, start with the monthly pattern and then compare specific years when timing matters. How to read London weather patterns. London, United Kingdom sits in a cool temperate climate band. Check the full monthly range because the warmer season (June to August) and cooler season (December to February) can feel very different for travel planning. London rainfall and seasonality. For outdoor plans in London, compare both total rainfall and rainy days by month. Shoulder periods (March-May and September-November) are useful for balancing temperature comfort, rainfall risk, and travel demand. When to compare London with other destinations. If you are choosing between several cities, compare London with nearby destinations in the same month. This avoids relying only on annual averages and makes temperature and precipitation differences clearer.
London Historical Weather Since 2015 | Latest Complete Month Data
London historical weather from 2015 through the latest complete month: monthly temperature, rainfall, sunshine, yearly comparisons, and travel timing references. The London historical weather page is built for travel planning and destination comparison, covering monthly temperature, rainfall, rainy days, and sunshine trends from 2015 through the latest complete month. Best time to visit London. Searches for the best time to visit London usually need monthly temperature, rainfall, and rainy-day context. Use the month-by-month view to find comfortable travel windows instead of relying only on annual averages. London average temperature by month. For queries such as London weather in April, London temperature in August, or London historical rainfall, start with the monthly pattern and then compare specific years when timing matters. How to read London weather patterns. London, United Kingdom sits in a cool temperate climate band. Check the full monthly range because the warmer season (June to August) and cooler season (December to February) can feel very different for travel planning. London rainfall and seasonality. For outdoor plans in London, compare both total rainfall and rainy days by month. Shoulder periods (March-May and September-November) are useful for balancing temperature comfort, rainfall risk, and travel demand. When to compare London with other destinations. If you are choosing between several cities, compare London with nearby destinations in the same month. This avoids relying only on annual averages and makes temperature and precipitation differences clearer. London historical weather from 2015 through the latest complete month: monthly temperature, rainfall, sunshine, yearly comparisons, and travel timing references.
London monthly fact table
These facts are generated from historical monthly averages for 2015-01-01/2026-05-31, ready for best-month, rainy-season, hottest-month, and coldest-month answers.
- Recommended month: August
- Hottest month: July
- Coldest month: January
- Rainiest month: October
| Month | Avg Temp | Precip | Rainy Days | Sunshine |
|---|
| January | 4.7°C | 68 mm | 17.3 | 4.2 h |
| February | 6°C | 57 mm | 16.9 | 5 h |
| March | 7.5°C | 51 mm | 17.5 | 6.8 h |
| April | 9.8°C | 36 mm | 13.8 | 9.8 h |
| May | 13.4°C | 53 mm | 16.5 | 10.8 h |
| June | 16.7°C | 59 mm | 15.9 | 11.4 h |
| July | 18.5°C | 61 mm | 17.7 | 11.3 h |
| August | 18.1°C | 55 mm | 16.5 | 10 h |
| September | 15.5°C | 64 mm | 15.9 | 8.5 h |
| October | 12.1°C | 76 mm | 17.2 | 6.2 h |
| November | 8.3°C | 67 mm | 16.7 | 4.4 h |
| December | 6.9°C | 66 mm | 17.5 | 3.4 h |
Source: Open-Meteo Archive; generated: 2026-06-07.
London historical weather travel guide
When is the best time to visit London?
Based on historical monthly averages for 2015-01-01/2026-05-31, the recommended month for London is August, with an average temperature around 18.1°C, average precipitation around 55 mm, and a travel comfort score of 78.
Is it hot in London in summer?
The hottest month in London historical averages is July, with an average temperature around 18.5°C and an average high around 22.7°C. For summer trips, check rainfall and heat precautions together.
When is the rainy season in London?
Rain is most concentrated in London during January, October, November. The rainiest month is October, with average precipitation around 76 mm and about 17.2 rainy days.
What is the coldest month in London?
The coldest month in London historical averages is January, with an average temperature around 4.7°C and an average low around 1.8°C. Prepare warm clothing for winter travel.