Climate averages 1991–2020
Croydon weather
in March.
A cool, moderately wet month: the joint 8th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Croydon: daytime highs average 10.2°C and nights cool to about 3.4°C. By daytime temperature it is the joint 8th warmest of the 12 months.
Expect about 41 mm of rain on roughly 10 days, which makes March a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 50 min on an average March day.
The nearest other city in this atlas is Purley (5 km away). In March its highs average 10.0°C, about as warm as Croydon, with 45 mm of rain.
Among the 143 cities listed in the United Kingdom, Croydon ranks joint 16th of 143 for the warmest March highs and joint 7th of 143 for the driest March (rainfall, lowest first). The mean March high of those 143 cities is 9.5°C; Croydon is 0.7°C warmer than that mean.
From March to April, average highs rise by 3.0°C to 13.1°C, and monthly rainfall rises from 41 mm to 49 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Croydon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C2.3°C | 2.3°C | 53 | 10.7 | 8.48 h |
| February | 7.7°C2.2°C | 2.2°C | 44 | 9.1 | 9.910 h |
| March, selected | 10.2°C3.4°C | 3.4°C | 41 | 10.1 | 11.812 h |
| April | 13.1°C5.1°C | 5.1°C | 49 | 10.9 | 13.814 h |
| May | 16.3°C8.2°C | 8.2°C | 52 | 9.8 | 15.616 h |
| June | 19.2°C11.2°C | 11.2°C | 56 | 9.5 | 16.517 h |
| July | 21.3°C13.4°C | 13.4°C | 56 | 10.2 | 16.116 h |
| August | 21.0°C13.4°C | 13.4°C | 62 | 9.8 | 14.615 h |
| September | 18.3°C11.2°C | 11.2°C | 45 | 8.8 | 12.713 h |
| October | 14.4°C8.5°C | 8.5°C | 57 | 10.5 | 10.711 h |
| November | 10.2°C5.0°C | 5.0°C | 60 | 10.8 | 8.99 h |
| December | 7.5°C2.9°C | 2.9°C | 57 | 11.1 | 8.08 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Purley in MarchUnited Kingdom · 5 kmHigh 10.0°C · Low 3.1°C · 45 mm rain
- Sutton in MarchUnited Kingdom · 8 kmHigh 10.1°C · Low 3.2°C · 44 mm rain
- Fulham in MarchUnited Kingdom · 13 kmHigh 10.5°C · Low 3.4°C · 42 mm rain
- London in MarchUnited Kingdom · 14 kmHigh 10.4°C · Low 3.2°C · 42 mm rain
- Bexley in MarchUnited Kingdom · 18 kmHigh 10.4°C · Low 3.7°C · 40 mm rain
- Archway in MarchUnited Kingdom · 21 kmHigh 10.1°C · Low 3.3°C · 42 mm rain
- Barking in MarchUnited Kingdom · 21 kmHigh 10.4°C · Low 3.7°C · 41 mm rain
- Ilford in MarchUnited Kingdom · 23 kmHigh 10.3°C · Low 3.7°C · 41 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Croydon) is explained once on the Croydon year overview and on the Sources, method and limits page.
Barking, Ilford and Walthamstow lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.