Niagara Falls
May
Weather in Niagara Falls for May 2025
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 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21 °C by the end of May.
With an average of 4 rainy days, Niagara Falls experiences minimal rainfall in May, ensuring that most days remain pleasantly dry.
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27
Dry days
4
Rainy days
0
Snow days
20°/8°
Temperatures
16 km/h
Avg max wind
73 %
Avg humidity
Niagara Falls in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  12° | 2 10° | 3 14° | 4 13° | |||
| 5  14° | 6  17° | 7  18° | 8 18° | 9  13° | 10  15° | 11  16° |
| 12 18° | 13 19° | 14 14° | 15 19° | 16 18° | 17 16° | 18 19° |
| 19 21° | 20 19° | 21 22° | 22 21° | 23 22° | 24 18° | 25 19° |
| 26 20° | 27 22° | 28 20° | 29 21° | 30 21° | 31 24° |
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Temperatures trend during May in Niagara Falls
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 12° /6° | 0.6 mm | 3 | |
| 2 May | Patchy rain possible | 10° /6° | 3 mm | 3 | |
| 3 May | Patchy rain possible | 14° /6° | 6.3 mm | 4 | |
| 4 May | Patchy rain possible | 13° /8° | 0.9 mm | 3 | |
| 5 May | Overcast | 14° /8° | 0.7 mm | 4 | |
| 6 May | Partly cloudy | 17° /7° | 0.2 mm | 5 | |
| 7 May | Heavy rain at times | 18° /8° | 3.4 mm | 5 | |
| 8 May | Overcast | 18° /10° | 1.2 mm | 4 | |
| 9 May | Moderate or heavy rain shower | 13° /8° | 4.7 mm | 4 | |
| 10 May | Sunny | 15° /7° | 0.1 mm | 4 | |
| 11 May | Cloudy | 16° /8° | 2.5 mm | 4 | |
| 12 May | Sunny | 18° /9° | 0.2 mm | 5 | |
| 13 May | Cloudy | 19° /11° | 4.3 mm | 5 | |
| 14 May | Cloudy | 14° /9° | 11 mm | 3 | |
| 15 May | Sunny | 19° /9° | 0 mm | 5 | |
| 16 May | Overcast | 18° /11° | 0.1 mm | 4 | |
| 17 May | Sunny | 16° /8° | 0.1 mm | 4 | |
| 18 May | Sunny | 19° /8° | 0.3 mm | 5 | |
| 19 May | Patchy rain possible | 21° /11° | 1.3 mm | 5 | |
| 20 May | Moderate or heavy rain shower | 19° /12° | 15.1 mm | 5 | |
| 21 May | Sunny | 22° /13° | 0.6 mm | 6 | |
| 22 May | Sunny | 21° /13° | 1.1 mm | 5 | |
| 23 May | Overcast | 22° /12° | 0.4 mm | 5 | |
| 24 May | Moderate rain at times | 18° /11° | 0.5 mm | 5 | |
| 25 May | Sunny | 19° /8° | 4.1 mm | 5 | |
| 26 May | Sunny | 20° /9° | 0 mm | 6 | |
| 27 May | Sunny | 22° /13° | 1.9 mm | 6 | |
| 28 May | Sunny | 20° /11° | 1.8 mm | 5 | |
| 29 May | Sunny | 21° /11° | 0 mm | 6 | |
| 30 May | Partly cloudy | 21° /11° | 0 mm | 6 | |
| 31 May | Sunny | 24° /12° | 0 mm | 6 | |
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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.
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 20° and cooler nights around 8°. 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 117.2 mm is expected in Niagara Falls during May, occurring over more than 4 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 16 km/h, suggesting breezy to windy conditions, depending on your activities.
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