What to pack for Toronto in May
- long sleeves and a warm layer
- a medium jacket
- a compact umbrella or rain shell — rain is frequent
Humidity averages 70%; max daily wind around 20 km/h.
How May compares
Best months in Toronto: May–September. See the full best time to visit Toronto guide.
Toronto in May: the details
In May, Toronto sees average daytime highs of 18°C (64°F) and overnight lows of 8°C (47°F). Rainfall totals roughly 64 mm across 10.5 rainy days, and the sun shines about 10.8 hours per day with 14.5 hours of daylight mid-month. Relative humidity averages 70%.
In context: May is the 5th-warmest month and the 10th-wettest in Toronto. The sunniest month is July (12.6 h/day).
| Metric | May average |
|---|---|
| Daytime high | 18°C / 64°F |
| Overnight low | 8°C / 47°F |
| Rainfall | 64 mm over 10.5 rainy days |
| Sunshine | 10.8 h/day (14.5 h daylight) |
| Humidity | 70% |
| Travel score | 8.9 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Toronto, Canada (43.71, -79.4) — see our methodology. Actual conditions vary year to year.
Not set on Toronto? Browse the best places to visit in May ranked by travel score.
Frequently asked questions
How hot is Toronto in May?
Daytime highs in Toronto in May average 18°C (64°F); nights drop to about 8°C.
Does it rain in Toronto in May?
Expect around 10.5 rainy days and 64 mm of rainfall in May.
Is May a good time to visit Toronto?
May is one of the best months to visit Toronto. Overall travel score: 8.9/10. The best months are May–September.
Also good in May, near Toronto
Where should you go next month?
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