May weather forecastKingston, Canada

May

Weather in May

Kingston in May experiences a considerable improvement in weather conditions. Temperature levels rise steadily, signifying the impending arrival of summer. The month witnesses an uptick in sea temperatures, marking the beginning of beach season for locals. Characterized by longer daylight hours and an average high temperature of 15.3°C (59.5°F), May sets the stage for outdoor activities. With the air getting warmer as June approaches, the city starts to exhibit full summery charm.

Temperature

May's arrival in Kingston, Canada, signals an increase in average high-temperatures, moving from April's frosty 8.7°C (47.7°F) to a refreshing 15.3°C (59.5°F). The average low-temperature, in May, in Kingston, is a chilly 8.1°C (46.6°F).

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Kingston, in May, during 17.3 rainfall days, 76mm (2.99") of precipitation is typically accumulated. Throughout the year, there are 170.3 rainfall days, and 830mm (32.68") of precipitation is accumulated.

Snowfall

Months with snowfall in Kingston are January through May, October through December. May is the last month it regularly snows in Kingston. During 0.3 snowfall days, in May, Kingston aggregates 1mm (0.04") of snow. Throughout the year, there are 67.5 snowfall days, and 649mm (25.55") of snow is accumulated.

Sea temperature

In Kingston, the average seawater temperature in May is 5.6°C (42.1°F).
Note: Engaging in a swim in 5.6°C (42.1°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.

Daylight

The average length of the day in May is 14h and 47min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of May, in Kingston, sunrise is at 5:25 am and sunset at 8:42 pm EDT.

Sunshine

The average sunshine in May is 9.2h.

UV index

In Kingston, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Updated: Feb 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in May, in Kingston, is 15.3°C (59.5°F), while the average low-temperature is 8.1°C (46.6°F).

The average relative humidity in May in Kingston, Canada, is 78%.

In Kingston, Canada, in May, during 17.3 rainfall days, 76mm (2.99") of precipitation is typically accumulated.

May is the last month it regularly snows in Kingston. During 0.3 snowfall days, in May, Kingston aggregates 1mm (0.04") of snow.

In Kingston, Canada, the average seawater temperature in May is 5.6°C (42.1°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

In May, the average day length is 14h and 47min.

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:42 pm EDT.

The average sunshine duration in May in Kingston, Canada, is 9.2h.

In Kingston, Canada, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

8.7°C

15.3°C

19.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

18.7km/h

14.9km/h

13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

3.2

0.3

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

11.4

11.5

10.5

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Kingston, Canada

Average high temperature in May: 15.3°C

The warmest month (with the highest average high temperature) is July (24.1°C).
The month with the lowest average high temperature is January (-3.2°C).

Average low temperature in May: 8.1°C

The month with the highest average low temperature is July (17.7°C).
The coldest month (with the lowest average low temperature) is January (-8.4°C).

Average pressure in May
Kingston, Canada

Average pressure in May: 1015mbar

The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

Average wind speed in May
Kingston, Canada

Average wind speed in May: 13.8km/h

The windiest month (with the highest average wind speed) is January (19.5km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).

Average humidity in May
Kingston, Canada

Average humidity in May: 78%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, August, September and November (76%).

Average rainfall in May
Kingston, Canada

Average rainfall in May: 76mm

The wettest month (with the highest rainfall) is October (92mm).
The driest month (with the least rainfall) is September (53mm).

Average rainfall days in May
Kingston, Canada

Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (7.2 days).

Average snowfall in May
Kingston, Canada

Average snowfall in May: 1mm

The month with the highest snowfall is February (164mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Kingston, Canada

Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in May
Kingston, Canada

Average sea temperature in May: 5.6°C

The best month for swimming (with the highest average sea temperature) is August (21.2°C).
The coldest month (with the lowest average sea temperature) is March (2°C).

Average daylight in May /
Average sunshine in May
Kingston, Canada

Average daylight in May: 14h and 48min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

Average sunshine in May: 9h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 6min).

Average sunshine days in May
Kingston, Canada

Average sunshine days in May: 11.5 days

The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is January (7.9 days).

Average UV index in May
Kingston, Canada

Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in May
Kingston, Canada

Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in May
Kingston, Canada

Average visibility in May: 9km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January and February (8km).