Markham
May
Weather in Markham for May 2026
Your guide to Markham weather in May - trends and predictions
In general, the average temperature in Markham at the beginning of May is 13.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.1 °C by the end of May.
Markham experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 172.4 mm.
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Temperatures
Rain 🌧️
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9
Dry days
22
Rainy days
0
Snow days
17°/8°
Temperatures
17 km/h
Avg max wind
72 %
Avg humidity
Markham Weather May
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Temperatures trend during May in Markham
See the weather trend as well as the moving average line
May weather in Markham day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Heavy rain at times | 11° /4° | 18.4 mm | 3 | |
| 2 May |  Moderate rain at times | 12° /5° | 1.4 mm | 3 | |
| 3 May | Moderate rain at times | 13° /5° | 3 mm | 3 | |
| 4 May |  Patchy rain possible | 14° /5° | 0.6 mm | 3 | |
| 5 May |  Overcast | 14° /8° | 0.9 mm | 3 | |
| 6 May |  Partly cloudy | 16° /7° | 9 mm | 4 | |
| 7 May | Heavy rain at times | 16° /7° | 7.9 mm | 4 | |
| 8 May | Partly cloudy | 18° /8° | 0.3 mm | 4 | |
| 9 May | Partly cloudy | 14° /6° | 1 mm | 4 | |
| 10 May |  Sunny | 17° /5° | 0.1 mm | 4 | |
| 11 May | Partly cloudy | 17° /5° | 0.2 mm | 5 | |
| 12 May | Partly cloudy | 20° /8° | 0.6 mm | 5 | |
| 13 May | Partly cloudy | 18° /11° | 13.5 mm | 4 | |
| 14 May | Overcast | 15° /9° | 8 mm | 4 | |
| 15 May | Sunny | 19° /8° | 0 mm | 5 | |
| 16 May | Partly cloudy | 21° /10° | 8.8 mm | 5 | |
| 17 May | Sunny | 17° /8° | 4 mm | 4 | |
| 18 May | Sunny | 16° /7° | 4.4 mm | 4 | |
| 19 May | Overcast | 19° /8° | 1.1 mm | 5 | |
| 20 May | Moderate or heavy rain shower | 19° /8° | 9.1 mm | 5 | |
| 21 May | Partly cloudy | 19° /10° | 13.1 mm | 5 | |
| 22 May | Overcast | 17° /10° | 30 mm | 4 | |
| 23 May | Sunny | 16° /9° | 4.9 mm | 4 | |
| 24 May | Heavy rain at times | 18° /8° | 0.9 mm | 5 | |
| 25 May | Sunny | 16° /6° | 4.2 mm | 4 | |
| 26 May | Sunny | 21° /7° | 0 mm | 5 | |
| 27 May | Sunny | 20° /10° | 1.7 mm | 5 | |
| 28 May | Overcast | 19° /10° | 2 mm | 4 | |
| 29 May | Sunny | 17° /10° | 11.7 mm | 5 | |
| 30 May | Sunny | 20° /10° | 2.9 mm | 5 | |
| 31 May | Partly cloudy | 21° /10° | 8.7 mm | 6 | |
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Important Notice
Our weather forecast for Markham in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Markham forecast closer to your planned date for the most up-to-date weather information.
Change Month
Markham in May - FAQ
What are the expected maximum and minimum temperatures in Markham during May?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Markham during May?
Significant rainfall exceeding 172.4 mm is expected in Markham during May, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Markham during May?
The average wind speed in Markham during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Markham
Explore the daily rainfall trends and prepare for Markhams May weather 💧
UV exposure in Markham during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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