Climate Insights for London
Line Islands, Kiribati
Climate Overview
The climate in London is hot. The average annual temperature is 27°C and approximately 752 mm of precipitation falls per year. April is the wettest month, receiving around 157 mm of rainfall. London sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in London is hot. The average annual temperature is 80°F and approximately 29.6 in of precipitation falls per year. April is the wettest month, receiving around 6.2 in of rainfall. London sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
London has relatively stable temperatures year-round, staying within a 2°C range. The warmest month is June, when average highs reach 28°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 26°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.London has relatively stable temperatures year-round, staying within a 4°F range. The warmest month is June, when average highs reach 82°F and the mean temperature sits around 81°F. January is the coolest month, with minimum temperatures around 78°F and an average of 79°F. Daily temperature variation is modest, with an average difference of 2°F between highs and lows.
Precipitation
London is a relatively dry area, receiving approximately 752 mm of precipitation annually, which averages out to around 63 mm per month. The wettest month is April, averaging 157 mm of rainfall. March and February also tend to see above-average precipitation. The driest month is October, with just 10 mm. That's 148 mm less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.London is a relatively dry area, receiving approximately 29.6 in of precipitation annually, which averages out to around 2.5 in per month. The wettest month is April, averaging 6.2 in of rainfall. March and February also tend to see above-average precipitation. The driest month is October, with just 0.4 in. That's 5.8 in less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
London is moderately windy, with an average annual wind speed of 24km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 21km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 26km/h in winter, 22km/h in spring, 23km/h in summer, 24km/h in autumn.London is very windy, with an average annual wind speed of 15mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 16mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 13mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3mph between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16mph in winter, 14mph in spring, 15mph in summer, 15mph in autumn.
Monthly Climate Data
The table below shows monthly climate averages for London based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for London based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.