London Weather in January
United Kingdom · Oceanic climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in London sees average temperatures ranging from a low of 2.0°C (35.6°F) to a high of 7.9°C (46.2°F), with a mean of 4.9°C (40.8°F). Compared to the annual average of 11.5°C (52.7°F), this month is 6.6°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 2.0°C (35.6°F). Precipitation averages 64.2mm, making it approximately 1.0mm drier than the monthly average of 65.0mm. The city receives an average of 4.3 hours of sunshine per day during January, with relative humidity averaging 86.9%. Wind speeds reach an average maximum of 23.0 km/h. Snowfall averages 1.1cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a coldest month of the year experience in London, with drier-than-average conditions compared to the rest of the year.
Having spent three winters in London, I can tell you the drizzle never really stops — it just changes intensity. The data says October is wettest, but honestly, it's the persistence rather than volume that gets you. May is my favorite: parks burst into bloom and you'll catch surprising stretches of sunshine between showers. The numbers say June-August is 'best,' but pack a light jacket regardless.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 6.5°C (43.7°F) | 4.9°C (40.8°F) | 6.9°C (44.4°F) |
| Rainfall | 66.8mm | 64.2mm | 64.6mm |
| Sunshine | 3.1 hrs | 4.3 hrs | 4.8 hrs |
| Humidity | 88.0% | 86.9% | 82.2% |
| Wind | 22.2 km/h | 23.0 km/h | 27.3 km/h |
| Rainy Days | 18.0 | 14.8 | 16.8 |
| Snowfall | 0.5 cm | 1.1 cm | 0.8 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting London in January, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in London in January?
The average temperature in London during January ranges from 2.0°C (35.6°F) to 7.9°C (46.2°F), with a mean of 4.9°C (40.8°F).
How much does it rain in London in January?
London receives an average of 64.2mm of precipitation in January, spread across approximately 14.8 rainy days.
What should I pack for London in January?
Based on January weather data, pack heavy winter clothing, thermal layers, and a warm coat.
Is January a good time to visit London?
January is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for London
Cities with Similar January Climate (Oceanic)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 51.51°, -0.13°. Timezone: Europe/London. Last updated: 2026-07-30.