Climate averages 1991–2020
Walthamstow weather
in December.
A cold, moderately wet month: the 11th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Walthamstow: daytime highs average 7.7°C and nights cool to about 3.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 57 mm of rain on roughly 11 days, which makes December a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 7 h 55 min on an average December day.
The nearest other city in this atlas is Ilford (7 km away). In December its highs average 7.7°C, about as warm as Walthamstow, with 57 mm of rain.
Among the 143 cities listed in the United Kingdom, Walthamstow ranks joint 23rd of 143 for the warmest December highs and joint 20th of 143 for the driest December (rainfall, lowest first). The mean December high of those 143 cities is 7.2°C; Walthamstow is 0.5°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 7.3°C, and monthly rainfall falls from 57 mm to 53 mm.
The annual picture
December 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
Walthamstow climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C2.4°C | 2.4°C | 53 | 10.7 | 8.48 h |
| February | 7.9°C2.3°C | 2.3°C | 44 | 9.1 | 9.910 h |
| March | 10.4°C3.6°C | 3.6°C | 41 | 10.1 | 11.812 h |
| April | 13.4°C5.3°C | 5.3°C | 49 | 10.9 | 13.814 h |
| May | 16.6°C8.5°C | 8.5°C | 52 | 9.8 | 15.616 h |
| June | 19.5°C11.5°C | 11.5°C | 56 | 9.5 | 16.617 h |
| July | 21.7°C13.7°C | 13.7°C | 56 | 10.2 | 16.116 h |
| August | 21.4°C13.7°C | 13.7°C | 62 | 9.8 | 14.615 h |
| September | 18.6°C11.4°C | 11.4°C | 45 | 8.8 | 12.713 h |
| October | 14.6°C8.7°C | 8.7°C | 57 | 10.5 | 10.711 h |
| November | 10.4°C5.2°C | 5.2°C | 60 | 10.8 | 8.99 h |
| December, selected | 7.7°C3.1°C | 3.1°C | 57 | 11.1 | 7.98 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
December in nearby cities
- Ilford in DecemberUnited Kingdom · 7 kmHigh 7.7°C · Low 3.3°C · 57 mm rain
- Enfield Town in DecemberUnited Kingdom · 8 kmHigh 7.5°C · Low 3.0°C · 55 mm rain
- Archway in DecemberUnited Kingdom · 8 kmHigh 7.4°C · Low 2.8°C · 58 mm rain
- Barking in DecemberUnited Kingdom · 10 kmHigh 7.7°C · Low 3.2°C · 57 mm rain
- London in DecemberUnited Kingdom · 12 kmHigh 7.6°C · Low 2.6°C · 58 mm rain
- Dagenham in DecemberUnited Kingdom · 14 kmHigh 7.7°C · Low 3.4°C · 56 mm rain
- Fulham in DecemberUnited Kingdom · 17 kmHigh 7.7°C · Low 2.8°C · 58 mm rain
- Bexley in DecemberUnited Kingdom · 20 kmHigh 7.8°C · Low 3.3°C · 56 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 Walthamstow) is explained once on the Walthamstow year overview and on the Sources, method and limits page.
Barking, Croydon and Ilford lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.