Markham in September
7.6out of 10
Yes, a good time to go
Mild: highs around 21°C. Frequent rain: about 9 rainy days.
21°CAvg high
15°CAvg low
9Rainy days (80 mm)
12:17 hDaylight
07:03Sunrise · 19:20 Sunset
Why this score
- Mild: highs around 21°C
- Frequent rain: about 9 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -1°C | -6°C | 81 mm | 12 | – | – | 3.5 |
| February | -1°C | -7°C | 58 mm | 8 | – | – | 4.0 |
| March | 3°C | -3°C | 68 mm | 10 | – | – | 4.3 |
| April | 8°C | 2°C | 91 mm | 11 | – | – | 5.2 |
| May | 13°C | 8°C | 79 mm | 10 | – | – | 6.3 |
| June | 19°C | 14°C | 78 mm | 10 | – | – | 7.2 |
| July | 24°C | 19°C | 67 mm | 10 | – | – | 7.8 |
| August | 24°C | 19°C | 67 mm | 9 | – | – | 7.9 |
| September | 21°C | 15°C | 80 mm | 9 | – | – | 7.6 |
| October | 14°C | 9°C | 91 mm | 12 | – | – | 6.2 |
| November | 8°C | 3°C | 87 mm | 11 | – | – | 5.3 |
| December | 3°C | -2°C | 82 mm | 12 | – | – | 4.1 |
Frequently asked questions
How hot is Markham in September?
Daytime highs average 21°C and nights about 15°C.
When is the best time to visit Markham?
The best months are August, July, September.