🇬🇧 Weather in London in January
This is what the weather in London (United Kingdom) was like in January in 2017–2026.
Key facts at a glance
Avg. daytime high
7.0 °C
5.6 °C – 8.6 °C
Avg. night-time low
1.3 °C
-0.1 °C – 3.5 °C
Avg. rain days in period
13.0
42 % of days · ≥ 1.0 mm
Avg. precipitation in period
68.2 mm
25.2 mm – 114 mm
Avg. cloud cover
70 %
This data source has no sunshine hours – average cloud cover shown instead.
Avg. sea temperature
–
No sea nearby – no sea temperature.
Extremes: Highest temperature 12.8 °C (1 Jan 2022) · Lowest temperature -5.1 °C (16 Jan 2023) · Avg. daily peak wind 27 km/h
Weather mix of all days
- 29Sunny
- 62Partly cloudy
- 89Cloudy
- 84Light rain
- 46Rain
Summary
- On average 7.0 °C during the day and 1.3 °C at night.
- On average 13.0 rain days (Rain day = at least 1.0 mm of precipitation) with 68.2 mm of precipitation in total.
- Prevailing: Cloudy.
- Warmest year: 2020 (avg. 8.6 °C), coolest: 2021 (avg. 5.6 °C).
- Wettest year: 2026 (114 mm), driest: 2022 (25.2 mm).
- Extremes: 12.8 °C on 1 Jan 2022 and -5.1 °C on 16 Jan 2023.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2026
Avg. max7.2°Avg. min2.2°- Rain days
- 19 Rain days
- Precipitation
- 114 mm
- Avg. cloud cover
- 75 % cloudy
- Sea temperature
- –
Max 10.6 °C · Min -4.0 °C
2025
Avg. max6.3°Avg. min0.6°- Rain days
- 14 Rain days
- Precipitation
- 72.8 mm
- Avg. cloud cover
- 71 % cloudy
- Sea temperature
- –
Max 11.4 °C · Min -3.7 °C
2024
Avg. max7.1°Avg. min1.1°- Rain days
- 10 Rain days
- Precipitation
- 56.8 mm
- Avg. cloud cover
- 69 % cloudy
- Sea temperature
- –
Max 12.7 °C · Min -4.8 °C
2023
Avg. max7.6°Avg. min1.4°- Rain days
- 15 Rain days
- Precipitation
- 74.0 mm
- Avg. cloud cover
- 64 % cloudy
- Sea temperature
- –
Max 12.4 °C · Min -5.1 °C
2022
Avg. max7.5°Avg. min1.3°- Rain days
- 6 Rain days
- Precipitation
- 25.2 mm
- Avg. cloud cover
- 60 % cloudy
- Sea temperature
- –
Max 12.8 °C · Min -3.1 °C
2021
Avg. max5.6°Avg. min0.2°- Rain days
- 19 Rain days
- Precipitation
- 111 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 12.0 °C · Min -3.6 °C
2020
Avg. max8.6°Avg. min3.5°- Rain days
- 13 Rain days
- Precipitation
- 60.3 mm
- Avg. cloud cover
- 74 % cloudy
- Sea temperature
- –
Max 12.5 °C · Min -1.9 °C
2019
Avg. max5.8°Avg. min-0.1°- Rain days
- 9 Rain days
- Precipitation
- 29.4 mm
- Avg. cloud cover
- 74 % cloudy
- Sea temperature
- –
Max 10.5 °C · Min -4.0 °C
2018
Avg. max8.2°Avg. min2.5°- Rain days
- 15 Rain days
- Precipitation
- 68.5 mm
- Avg. cloud cover
- 73 % cloudy
- Sea temperature
- –
Max 12.6 °C · Min -1.0 °C
2017
Avg. max5.8°Avg. min0.0°- Rain days
- 10 Rain days
- Precipitation
- 70.5 mm
- Avg. cloud cover
- 62 % cloudy
- Sea temperature
- –
Max 9.5 °C · Min -3.3 °C
Frequently asked questions
- How warm is it in London in January?
- Daytime highs averaged 7.0 °C, night-time lows 1.3 °C. The highest value of the past 10 years was 12.8 °C (1 Jan 2022), the lowest -5.1 °C (16 Jan 2023).
- How often does it rain in London in January?
- On average there were 13.0 rain days (at least 1 mm) with 68.2 mm of precipitation in total.
Check your exact travel dates
Choose your travel period – we show the weather for exactly those days.
Other destinations in January
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)