Climate averages 1991–2020
Walthamstow weather
in August.
A mild, moderately wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Walthamstow: daytime highs average 21.4°C and nights cool to about 13.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 62 mm of rain on roughly 10 days, which makes August a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 37 min on an average August day.
The nearest other city in this atlas is Ilford (7 km away). In August its highs average 21.3°C, about as warm as Walthamstow, with 62 mm of rain.
Among the 143 cities listed in the United Kingdom, Walthamstow ranks joint 1st of 143 for the warmest August highs and joint 30th of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 19.7°C; Walthamstow is 1.7°C warmer than that mean.
From August to September, average highs fall by 2.8°C to 18.6°C, and monthly rainfall falls from 62 mm to 45 mm.
The annual picture
August 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, selected | 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 | 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
August in nearby cities
- Ilford in AugustUnited Kingdom · 7 kmHigh 21.3°C · Low 13.8°C · 62 mm rain
- Enfield Town in AugustUnited Kingdom · 8 kmHigh 21.2°C · Low 13.5°C · 63 mm rain
- Archway in AugustUnited Kingdom · 8 kmHigh 21.0°C · Low 13.4°C · 61 mm rain
- Barking in AugustUnited Kingdom · 10 kmHigh 21.4°C · Low 13.8°C · 62 mm rain
- London in AugustUnited Kingdom · 12 kmHigh 21.3°C · Low 13.4°C · 61 mm rain
- Dagenham in AugustUnited Kingdom · 14 kmHigh 21.3°C · Low 13.9°C · 60 mm rain
- Fulham in AugustUnited Kingdom · 17 kmHigh 21.3°C · Low 13.5°C · 61 mm rain
- Bexley in AugustUnited Kingdom · 20 kmHigh 21.3°C · Low 13.8°C · 60 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.