Verdict: Fair month
London Weather in January
January is properly cold in London, with highs of only 8°C (46°F). Expect showers on roughly 11 days of the month — rarely trip-ruining, worth planning around. January is workable in London if your dates are fixed — just plan around the conditions.
Average high
8°C / 46°F
Average low
2°C / 36°F
Rain days
~11
Precipitation
64 mm
What to pack for London in January
- A proper warm jacket, and a hat for mornings
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
January against the rest of the year
Warmest in London: Aug (23°C / 73°F) · Coolest: Jan (8°C / 46°F) · Wettest: Oct (~16 rain days)
8°
2°
Jan
10°
4°
Feb
11°
4°
Mar
14°
5°
Apr
18°
8°
May
21°
12°
Jun
22°
14°
Jul
23°
14°
Aug
20°
12°
Sep
16°
9°
Oct
11°
6°
Nov
9°
4°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)