May weather forecastHamilton, Canada
May
Weather in May
When May arrives, Hamilton shakes off the remains of the chill, basking in the sunny ambience of spring. Temperature reaches its zenith at 17.2°C (63°F), making it conducive for outdoor activities. The elongated daylight hours invite residents to embrace the outdoor festivities. May showers add a sheen to the greenery, enhancing the city’s beauty even further. The advent of pleasant weather sets the tone for the pending summer.Temperature
With the onset of May in Hamilton, Canada, the average high-temperature slightly shifts from April's fresh 10°C (50°F) to a comfortable 17.2°C (63°F). In Hamilton, an average nighttime temperature of 8.8°C (47.8°F) is expected during May.Humidity
The average relative humidity in May in Hamilton is 76%.Rainfall
In Hamilton, during May, the rain falls for 18.3 days and regularly aggregates up to 69mm (2.72") of precipitation. In Hamilton, during the entire year, the rain falls for 175.2 days and collects up to 711mm (27.99") of precipitation.Snowfall
Months with snowfall in Hamilton are January through May, November and December. May is the last month it regularly snows in Hamilton. During 0.3 snowfall days, in May, Hamilton aggregates 2mm (0.08") of snow. In Hamilton, during the entire year, snow falls for 58.6 days and aggregates up to 463mm (18.23") of snow.Sea temperature
In May, the average sea temperature in Hamilton is 7.7°C (45.9°F).Note: It is advised against swimming in 7.7°C (45.9°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
The average length of the day in May in Hamilton is 14h and 42min.On the first day of May in Hamilton, sunrise is at 6:11 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:52 pm EDT.
Sunshine
In Hamilton, the average sunshine in May is 9.1h.UV index
In Hamilton, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hamilton, Canada
- Average high temperature in May: 17.2°C
The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in May: 8.8°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).
Average pressure in May
Hamilton, Canada
- Average pressure in May: 1015.4mbar
The months with the highest atmospheric pressure are March and November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in May
Hamilton, Canada
- Average wind speed in May: 13.2km/h
The windiest month (with the highest average wind speed) is January (19km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in May
Hamilton, Canada
- Average humidity in May: 76%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Hamilton, Canada
- Average rainfall in May: 69mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is September (44mm).
Average rainfall days in May
Hamilton, Canada
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in May
Hamilton, Canada
- Average snowfall in May: 2mm
The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in May
Hamilton, Canada
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Hamilton, Canada
- Average sea temperature in May: 7.7°C
The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (1.2°C).
Average daylight in May /
Average sunshine in May
Hamilton, Canada
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Hamilton, Canada
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (9 days).
Average UV index in May
Hamilton, Canada
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Hamilton, Canada
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Hamilton, Canada
- Average visibility in May: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (8km).
