Climate averages 1991–2020
London, Canada weather
in April.
A cool, wet month: the 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in London, Canada: daytime highs average 11.9°C and nights cool to about 2.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 93 mm of rain on roughly 12 days, which makes April a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average April day.
The nearest other city in this atlas is Kitchener (76 km away). In April its highs average 11.2°C, 0.7°C cooler than London, Canada, with 86 mm of rain.
Among the 86 cities listed in Canada, London, Canada ranks joint 15th of 86 for the warmest April highs and 53rd of 86 for the driest April (rainfall, lowest first). The mean April high of those 86 cities is 10.3°C; London, Canada is 1.6°C warmer than that mean.
From April to May, average highs rise by 6.9°C to 18.9°C, and monthly rainfall rises from 93 mm to 98 mm.
The annual picture
April in context
Monthly precipitation
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
London, Canada climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.5°C-9.0°C | -9.0°C | 71 | 11.7 | 9.49 h |
| February | -0.5°C-9.6°C | -9.6°C | 58 | 9.6 | 10.510 h |
| March | 4.7°C-4.5°C | -4.5°C | 70 | 10.9 | 11.912 h |
| April, selected | 11.9°C2.1°C | 2.1°C | 93 | 12.4 | 13.413 h |
| May | 18.9°C9.0°C | 9.0°C | 98 | 12.5 | 14.615 h |
| June | 24.0°C14.7°C | 14.7°C | 102 | 12.0 | 15.315 h |
| July | 26.1°C17.2°C | 17.2°C | 100 | 11.9 | 15.015 h |
| August | 25.1°C16.5°C | 16.5°C | 84 | 10.6 | 13.914 h |
| September | 21.4°C13.0°C | 13.0°C | 86 | 9.7 | 12.513 h |
| October | 14.3°C7.0°C | 7.0°C | 86 | 11.8 | 11.111 h |
| November | 7.2°C1.0°C | 1.0°C | 77 | 11.1 | 9.810 h |
| December | 1.5°C-4.5°C | -4.5°C | 68 | 11.2 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
April in nearby cities
- Kitchener in AprilCanada · 76 kmHigh 11.2°C · Low 0.7°C · 86 mm rain
- Waterloo in AprilCanada · 79 kmHigh 11.1°C · Low 0.8°C · 86 mm rain
- Brantford in AprilCanada · 80 kmHigh 12.2°C · Low 1.9°C · 87 mm rain
- Cambridge, Canada in AprilCanada · 86 kmHigh 11.6°C · Low 1.4°C · 87 mm rain
- Sarnia in AprilCanada · 95 kmHigh 11.4°C · Low 2.8°C · 85 mm rain
- Guelph in AprilCanada · 101 kmHigh 11.1°C · Low 0.9°C · 87 mm rain
- Hamilton in AprilCanada · 116 kmHigh 9.8°C · Low 2.7°C · 94 mm rain
- Burlington in AprilCanada · 122 kmHigh 10.6°C · Low 2.3°C · 89 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 London) is explained once on the London, Canada year overview and on the Sources, method and limits page.