Best Time to Visit Markham
Best time: Jul, Jun, Aug, Sep.
Jul is warmest (26.5°C high); Sep is rainiest (91 mm).
Markham weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | -2.5 | -10.3 | 52 | 2.3 |
| Feb | -1.7 | -9.6 | 53 | 3.7 |
| Mar | 3.6 | -4.8 | 55 | 5.5 |
| Apr | 10.9 | 1.5 | 72 | 7.3 |
| May | 18.3 | 7.8 | 79 | 8.7 |
| Jun | 23.4 | 12.8 | 76 | 9.6 |
| Jul | 26.5 | 16.1 | 74 | 9.6 |
| Aug | 25.4 | 15.3 | 89 | 8.2 |
| Sep | 20.9 | 11.3 | 91 | 6.3 |
| Oct | 13.9 | 5.2 | 74 | 3.9 |
| Nov | 7.1 | 0.1 | 89 | 2.2 |
| Dec | 0.8 | -6.3 | 68 | 1.8 |
Average high temperature
Best months by activity
Overall: JulJunAugSep
Beaches: JulJunAug
Hiking: JunMayJulAug
Sightseeing: JulJunMayAug
Markham quick facts
What to pack
Cold months (Jan, Feb, Mar, Apr, Nov, Dec): warm layers and a coat.
Wet months (Sep): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Markham?
Jul, Jun, Aug, Sep.
What is the rainiest month?
Sep, about 91 mm.
What is the warmest month?
Jul, with average highs of 26.5°C.
Where to stay
Book Markham hotels · Markham tours & activities
All destinations · Best time to visit Toronto · Best time to visit Abbotsford · Best time to visit Ahuntsic-Cartierville · Best time to visit Ajax
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.