Niagara Falls
May
Weather in Niagara Falls for May 2026
Your guide to Niagara Falls weather in May - trends and predictions
In general, the average temperature in Niagara Falls at the beginning of May is 14.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.4 °C by the end of May.
Niagara Falls experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 156.2 mm.
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Temperatures
Rain 🌧️
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10
Dry days
21
Rainy days
0
Snow days
17°/9°
Temperatures
18 km/h
Avg max wind
76 %
Avg humidity
Niagara Falls Weather May
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Temperatures trend during May in Niagara Falls
See the weather trend as well as the moving average line
May weather in Niagara Falls day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 14° /6° | 6.6 mm | 3 | |
| 2 May | Patchy rain possible | 13° /7° | 7.5 mm | 3 | |
| 3 May | Patchy rain possible | 13° /6° | 4.2 mm | 3 | |
| 4 May | Patchy rain possible | 13° /7° | 9.7 mm | 3 | |
| 5 May |  Overcast | 16° /8° | 0.5 mm | 4 | |
| 6 May |  Partly cloudy | 17° /8° | 3 mm | 5 | |
| 7 May |  Heavy rain at times | 18° /8° | 2.3 mm | 4 | |
| 8 May | Overcast | 15° /8° | 2 mm | 3 | |
| 9 May |  Moderate or heavy rain shower | 13° /6° | 3.1 mm | 4 | |
| 10 May |  Sunny | 16° /5° | 0.1 mm | 4 | |
| 11 May |  Cloudy | 16° /6° | 1.7 mm | 4 | |
| 12 May | Sunny | 21° /8° | 0.1 mm | 5 | |
| 13 May | Cloudy | 20° /12° | 5.5 mm | 5 | |
| 14 May | Cloudy | 17° /11° | 7.3 mm | 4 | |
| 15 May | Sunny | 20° /11° | 1.5 mm | 5 | |
| 16 May | Overcast | 19° /12° | 33.7 mm | 4 | |
| 17 May | Sunny | 17° /9° | 8.4 mm | 4 | |
| 18 May | Sunny | 17° /8° | 0.2 mm | 4 | |
| 19 May | Patchy rain possible | 19° /9° | 0.8 mm | 5 | |
| 20 May | Partly cloudy | 18° /9° | 10 mm | 5 | |
| 21 May | Sunny | 18° /11° | 12.6 mm | 5 | |
| 22 May | Sunny | 18° /11° | 15.7 mm | 4 | |
| 23 May | Overcast | 18° /10° | 0.3 mm | 4 | |
| 24 May | Moderate rain at times | 17° /9° | 0.3 mm | 4 | |
| 25 May | Sunny | 18° /7° | 2.7 mm | 5 | |
| 26 May | Sunny | 20° /7° | 0 mm | 5 | |
| 27 May | Sunny | 21° /11° | 1.2 mm | 5 | |
| 28 May | Sunny | 19° /11° | 1.2 mm | 5 | |
| 29 May | Sunny | 18° /11° | 13.9 mm | 5 | |
| 30 May | Partly cloudy | 20° /11° | 0 mm | 5 | |
| 31 May | Sunny | 20° /11° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Niagara Falls 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 Niagara Falls forecast closer to your planned date for the most up-to-date weather information.
Change Month
Niagara Falls in May - FAQ
What are the expected maximum and minimum temperatures in Niagara Falls during May?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Niagara Falls during May?
Significant rainfall exceeding 156.2 mm is expected in Niagara Falls during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Niagara Falls during May?
The average wind speed in Niagara Falls during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Niagara Falls
Explore the daily rainfall trends and prepare for Niagara Fallss May weather 💧
UV exposure in Niagara Falls during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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