When to go · London, Ontario
London, Ontario in May
Great month. Inside London, Ontario's best window: May–Oct.
Key facts
- Verdict
- Great
- Temperature
- 19°C (66°F)66°F (19°C) / 8°C (46°F)46°F (8°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Canada overall
- Prices
- Medium
- Canada overall
Verdict
Inside London, Ontario's best window: May–Oct.
Is another month better than May?
No other month rates higher than May for London, Ontario in this guide.
Weather in May
- London, OntarioHighs around 19 °C (66 °F), lows around 8 °C (46 °F), rain on about 9 daysHighs around 66 °F (19 °C), lows around 46 °F (8 °C), rain on about 9 days
Crowds and prices
- Crowds · Canada overall
- Medium
- Prices · Canada overall
- Medium
Canada overall: Victoria Day weekend opens the season; Rockies lakes still frozen at altitude.
Compare two months
Weather, crowds and prices for any two months in London, Ontario, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 19 °C (66 °F)66 °F (19 °C)
Jun: 24 °C (75 °F)75 °F (24 °C)
Night low
May: 8 °C (46 °F)46 °F (8 °C)
Jun: 13 °C (55 °F)55 °F (13 °C)
Rain days
May: 9
Jun: 9
Crowds
May: Medium
Jun: Medium
Prices
May: Medium
Jun: Medium
Festivals listed
May: 0
Jun: 1
May: Inside London, Ontario's best window: May–Oct.
June: Inside London, Ontario's best window: May–Oct.
London, Ontario: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings