Temperatures in May
It's pleasantly warm in May in Niagara Falls with an average temperature of 20°C. Temperatures this month range from a low of 15°C to a high of 27°C. At night, you can expect temperatures between 5°C and 17°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Niagara Falls in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Niagara Falls with mild temperatures, averaging around 18°C during the day and nights close to 8°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 20°C, with nights close to 10°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of May
By the end of May, the average daytime temperature in Niagara Falls will be around 24°C, with nights close to 14°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in May
In May, there is an average of 103 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 25% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Niagara Falls. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Niagara Falls in May |
London | ||
|---|---|---|---|
 Average Temperature |
20°C | 18°C | |
 High Temp |
27°C | 21°C | |
| Low Temp |
15°C | 15°C | |
 Total Precipitation |
103 mm | 46 mm | |
| Rainy Days |
8 days | 8 days | |
April
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is May a good time to visit Niagara Falls?
After some sun? Then May isn’t the best time to be in Niagara Falls. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Niagara Falls in May
With 33°C, Niagara Falls hit the highest temperature in the last 10 years in May 2018. The lowest daytime temperature in this month was 5°C in 2020. The extreme night temperatures ranged from a low of -4°C to a high of 23°C.
Check out the climate of Niagara Falls for all months and discover the best travel time
Curious about the climate in other parts of Canada? Check out the weather and climate in places like Vancouver, Toronto, Lake Louise, or have a look at other destinations in Canada.
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Daily Temperature in May in Niagara Falls
This chart shows the average daily temperatures, both day and night, for each day in May in Niagara Falls, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Niagara Falls
The chart below shows the average daily precipitation in May for Niagara Falls, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 8 days of rain in Niagara Falls.
Daily UV Index in May in Niagara Falls
This chart shows the average daily UV index in May in Niagara Falls, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Niagara Falls Over the Years
This chart shows the average temperature in May in Niagara Falls, measured in degrees Celsius, over the past years.
Total Precipitation in May in Niagara Falls Over the Years
This chart shows the average precipitation in May in Niagara Falls, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Niagara Falls
Click on a specific day in May for detailed info on the typical weather on that day in Niagara Falls. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Niagara Falls
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Average Weather in Niagara Falls by Month
Click on a month below to see detailed weather info for Niagara Falls. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Niagara Falls for all months at once
