May weather forecastLeiden, Netherlands
May
Weather in May
May ushers in the warmer climes in Leiden, a noticeable shift from the spring weather pattern. Although the month sees an increase in rainfall to 21mm (0.83"), the increase in temperature along with longer daylight hours balances out the wet conditions. The weather in May witnesses fewer cloud cover, resulting in more sunshine hours per day. The warmer weather paves the way for outdoor adventures and sightseeing. Even though wind speed remains nearly the same as April, the warming trend reduces the wind's chill factor.Temperature
May's arrival in Leiden, Netherlands, registers an average high-temperature of a mild 15.2°C (59.4°F), closely aligning with the temperature of the previous month. During May, Leiden records an average temperature of 9.9°C (49.8°F) at night.Humidity
In May, the average relative humidity is 76%.Rainfall
In Leiden, in May, during 13.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Leiden, during the entire year, the rain falls for 183.4 days and collects up to 400mm (15.75") of precipitation.Snowfall
In Leiden, Netherlands, snow does not fall in April through October.Daylight
The average length of the day in May in Leiden is 15h and 44min.On the first day of the month, sunrise is at 06:10 and sunset at 21:07. On the last day of May, in Leiden, sunrise is at 05:27 and sunset at 21:52 CEST.
Sunshine
In May, the average sunshine is 9h.UV index
In Leiden, Netherlands, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during May translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Leiden, Netherlands
- Average high temperature in May: 15.2°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in May: 9.9°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in May
Leiden, Netherlands
- Average pressure in May: 1016.6mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in May
Leiden, Netherlands
- Average wind speed in May: 16.8km/h
The windiest month (with the highest average wind speed) is December (24.7km/h).
The calmest month (with the lowest average wind speed) is July (16.1km/h).
Average humidity in May
Leiden, Netherlands
- Average humidity in May: 76%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and August (75%).
Average rainfall in May
Leiden, Netherlands
- Average rainfall in May: 21mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in May
Leiden, Netherlands
- Average rainfall days in May: 13.2 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is April (11.3 days).
Average snowfall in May
Leiden, Netherlands
- Average snowfall in May: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Leiden, Netherlands
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Leiden, Netherlands
- Average daylight in May: 15h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Leiden, Netherlands
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is December (8.1 days).
Average UV index in May
Leiden, Netherlands
- 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 January, February, November and December (UV index 2).
Average cloud cover in May
Leiden, Netherlands
- Average cloud cover in May: 41
The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are April and August (Cloud cover 38).
Average visibility in May
Leiden, Netherlands
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
