Niagara-on-the-Lake in May
6.4out of 10
Possible, with caveats
Cool: highs only around 15°C. Frequent rain: about 11 rainy days.
15°CAvg high
10°CAvg low
11Rainy days (82 mm)
14:29 hDaylight
05:58Sunrise · 20:27 Sunset
Why this score
- Cool: highs only around 15°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in May is fairly consistent from year to year (3.0 days). 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 | 0°C | -5°C | 78 mm | 13 | – | – | 3.4 |
| February | 0°C | -5°C | 60 mm | 10 | – | – | 3.7 |
| March | 4°C | -2°C | 73 mm | 10 | – | – | 4.5 |
| April | 9°C | 4°C | 96 mm | 12 | – | – | 5.4 |
| May | 15°C | 10°C | 82 mm | 11 | – | – | 6.4 |
| June | 21°C | 16°C | 92 mm | 11 | – | – | 7.4 |
| July | 25°C | 20°C | 91 mm | 11 | – | – | 7.6 |
| August | 25°C | 20°C | 80 mm | 10 | – | – | 7.7 |
| September | 21°C | 16°C | 89 mm | 10 | – | – | 7.6 |
| October | 15°C | 10°C | 94 mm | 13 | – | – | 6.2 |
| November | 9°C | 4°C | 84 mm | 12 | – | – | 5.3 |
| December | 3°C | -1°C | 81 mm | 13 | – | – | 4.1 |
Frequently asked questions
How hot is Niagara-on-the-Lake in May?
Daytime highs average 15°C and nights about 10°C.
When is the best time to visit Niagara-on-the-Lake?
The best months are August, July, September, June.