May weather forecastHarbour Breton, Canada
May
Weather in May
The last month of the spring, May, is a chilly month in Harbour Breton, Canada, with temperature in the range of an average low of 3.8°C (38.8°F) and an average high of 6.1°C (43°F).Temperature
Harbour Breton in May observes a minor temperature shift, with average high-temperatures adjusting from an icy 3°C (37.4°F) in April to a chilly 6.1°C (43°F). An average low-temperature of 3.8°C (38.8°F), slightly less than the daytime peak, marks the month of May.Humidity
In Harbour Breton, the average relative humidity in May is 86%.Rainfall
May is the month with the least rainfall. Rain falls for 13.9 days and accumulates 50mm (1.97") of precipitation.Snowfall
January through May, November and December are months with snowfall in Harbour Breton. May is the last month it regularly snows in Harbour Breton. During 0.2 snowfall days, in May, Harbour Breton aggregates 2mm (0.08") of snow. Throughout the year, in Harbour Breton, there are 31.9 snowfall days, and 229mm (9.02") of snow is accumulated.Sea temperature
In Harbour Breton, in May, the average water temperature is 3.7°C (38.7°F).Note: During swimming, this scenario is excessively cold, hazardous, and can lead to fatality. Hypothermia ensues swiftly without suitable insulated waterproof wear.
Daylight
In Harbour Breton, Canada, the average length of the day in May is 15h and 8min.On the first day of May, sunrise is at 5:55 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 9:01 pm NDT.
Sunshine
In Harbour Breton, the average sunshine in May is 7h.UV index
In May, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during May leads to these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harbour Breton, Canada
- Average high temperature in May: 6.1°C
The warmest month (with the highest average high temperature) is August (17.9°C).
The month with the lowest average high temperature is February (-0.2°C).
- Average low temperature in May: 3.8°C
The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in May
Harbour Breton, Canada
- Average pressure in May: 1015.4mbar
The month with the highest atmospheric pressure is September (1015.9mbar).
The month with the lowest atmospheric pressure is February (1009.2mbar).
Average wind speed in May
Harbour Breton, Canada
- Average wind speed in May: 25.3km/h
The windiest month (with the highest average wind speed) is January (37.2km/h).
The calmest month (with the lowest average wind speed) is July (22.3km/h).
Average humidity in May
Harbour Breton, Canada
- Average humidity in May: 86%
The month with the highest relative humidity is July (89%).
The months with the lowest relative humidity are January, November and December (79%).
Average rainfall in May
Harbour Breton, Canada
- Average rainfall in May: 50mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is May (50mm).
Average rainfall days in May
Harbour Breton, Canada
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in May
Harbour Breton, Canada
- Average snowfall in May: 2mm
The month with the highest snowfall is March (50mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in May
Harbour Breton, Canada
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Harbour Breton, Canada
- Average sea temperature in May: 3.7°C
The best month for swimming (with the highest average sea temperature) is August (15.2°C).
The coldest month (with the lowest average sea temperature) is March (0.8°C).
Average daylight in May /
Average sunshine in May
Harbour Breton, Canada
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 7h and 0min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in May
Harbour Breton, Canada
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is December (9.2 days).
Average UV index in May
Harbour Breton, Canada
- Average UV index in May: 2
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in May
Harbour Breton, Canada
- Average cloud cover in May: 56
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are August and September (Cloud cover 45).
Average visibility in May
Harbour Breton, Canada
- Average visibility in May: 9km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (9km).





