London weather in March
In March, London has an average high of 10 °C51 °F and an average low of 2 °C36 °F, with about 50 mm2.0 in of precipitation. It is the 9th warmest month of the year and ranks 10th for precipitation.
How March compares with other months
Compared with February, March is 1.8 °C3.3 °F warmer on average. Compared with April, March is 2.9 °C5.3 °F cooler on average and wetter by 8 mm0.3 in. Daylight lasts about 11.7 hours around the middle of the month. Average relative humidity is 86% and the average cloud amount 73%.
Is March a good time to visit London?
March is not among the most comfortable months by our comfort score: it is cool (average high 10 °C51 °F) and nights are cold (average low 2 °C36 °F). The most comfortable months in London are June–September.
What to wear in March
For London in March, pack a warm coat, layers and closed shoes.
March in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| London | 1051 | 236 | 502.0 |
| Bexley | 1051 | 337 | 502.0 |
| Slough | 1050 | 236 | 522.1 |
| Crawley | 949 | 338 | 542.1 |
| Luton | 1049 | 235 | 502.0 |
| Southend-on-Sea | 1049 | 338 | 481.9 |
| Reading | 1050 | 236 | 542.1 |
| Basingstoke | 1049 | 236 | 542.1 |
| Milton Keynes | 1049 | 235 | 502.0 |
Other months in London
- January7 °C45 °F / 2 °C35 °F
- February8 °C46 °F / 1 °C35 °F
- March10 °C51 °F / 2 °C36 °F
- April14 °C57 °F / 5 °C40 °F
- May17 °C63 °F / 8 °C46 °F
- June21 °C69 °F / 11 °C52 °F
- July23 °C73 °F / 13 °C55 °F
- August23 °C73 °F / 13 °C55 °F
- September20 °C68 °F / 10 °C50 °F
- October15 °C60 °F / 8 °C46 °F
- November11 °C51 °F / 5 °C40 °F
- December8 °C46 °F / 3 °C37 °F
Frequently asked questions
How warm is London in March?
In March the average high in London is 10 °C (51 °F) and the average low is 2 °C (36 °F).
Does it rain a lot in London in March?
On average about 50 mm (2.0 in) of precipitation falls in March; it ranks 10th of the 12 months.
Is March the warmest month in London?
No. The warmest month in London is July, with an average high of 23 °C (73 °F). The coldest month is February, with an average low of 1 °C (35 °F).
How long is the day in London in March?
In the middle of March the day in London lasts about 11.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is London in March?
The average relative humidity in March is about 86%. This is a long-term average for the whole day.
How cloudy is London in March?
On average about 73% of the sky is covered by cloud in March. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.