May weather forecastSummerside, Canada
May
Weather in May
The last month of the spring, May, is a cool month in Summerside, Canada, with temperature in the range of an average low of 5.5°C (41.9°F) and an average high of 11.8°C (53.2°F).Temperature
May brings an increase in the average high-temperature, progressing from an icy 5.7°C (42.3°F) in April to a fresh 11.8°C (53.2°F). Throughout May, Summerside records an average temperature of 5.5°C (41.9°F) at night.Humidity
The average relative humidity in May is 78%.Rainfall
In Summerside, during May, the rain falls for 15.7 days and regularly aggregates up to 61mm (2.4") of precipitation. In Summerside, during the entire year, the rain falls for 153.3 days and collects up to 807mm (31.77") of precipitation.Snowfall
Months with snowfall in Summerside are January through May, October through December. May is the last month it regularly snows in Summerside. During 0.3 snowfall days, in May, Summerside aggregates 3mm (0.12") of snow. Throughout the year, in Summerside, there are 81.4 snowfall days, and 813mm (32.01") of snow is accumulated.Sea temperature
In May, the average sea temperature in Summerside is 4.8°C (40.6°F).Note: During swimming, this state is an instant threat to life. Breathing is uncontrollable, and coherent thought processes nearly vanish. A specialized swimsuit is crucial to minimize thermal dissipation.
Daylight
The average length of the day in May in Summerside is 15h and 1min.On the first day of May in Summerside, sunrise is at 5:59 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:59 pm ADT.
Sunshine
In Summerside, the average sunshine in May is 7.2h.UV index
In May, the average daily maximum UV index in Summerside is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in May leads to these guidelines:
Act with care - The need to guard against sun damage is communicated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Summerside, Canada
- Average high temperature in May: 11.8°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The months with the lowest average high temperature are January and February (-3.3°C).
- Average low temperature in May: 5.5°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (-9.3°C).
Average pressure in May
Summerside, Canada
- Average pressure in May: 1015.3mbar
The month with the highest atmospheric pressure is September (1016.2mbar).
The month with the lowest atmospheric pressure is January (1012mbar).
Average wind speed in May
Summerside, Canada
- Average wind speed in May: 16km/h
The windiest month (with the highest average wind speed) is December (20.2km/h).
The calmest month (with the lowest average wind speed) is July (14.4km/h).
Average humidity in May
Summerside, Canada
- Average humidity in May: 78%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July, August, September and October (77%).
Average rainfall in May
Summerside, Canada
- Average rainfall in May: 61mm
The wettest month (with the highest rainfall) is December (86mm).
The driest month (with the least rainfall) is July (53mm).
Average rainfall days in May
Summerside, Canada
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (6 days).
Average snowfall in May
Summerside, Canada
- Average snowfall in May: 3mm
The month with the highest snowfall is February (195mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Summerside, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Summerside, Canada
- Average sea temperature in May: 4.8°C
The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest months (with the lowest average sea temperature) are February and March (-1.1°C).
Average daylight in May /
Average sunshine in May
Summerside, Canada
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 7h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The months with the least sunshine are January and December (Average sunshine: 2h and 42min).
Average sunshine days in May
Summerside, Canada
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in May
Summerside, Canada
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in May
Summerside, Canada
- Average cloud cover in May: 53
The month with the most cloud cover is December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Summerside, Canada
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is February (7km).





