Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
May's onset brings an average high-temperature of a refreshing 14.1°C (57.4°F), showing a minute difference from April's 11.6°C (52.9°F). In May, Heswall experiences an average nighttime temperature of 8°C (46.4°F).Humidity
April and May, with an average relative humidity of 79%, are the least humid months.Rainfall
In May, the rain falls for 18.6 days. Throughout May, 40mm (1.57") of precipitation is accumulated. Throughout the year, in Heswall, there are 225.2 rainfall days, and 669mm (26.34") of precipitation is accumulated.Snowfall
In Heswall, snow does not fall in May through November.Daylight
In May, the average length of the day is 15h and 54min.On the first day of May in Heswall, sunrise is at 5:36 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 4:51 am and sunset at 9:29 pm BST.
Sunshine
The months with the most sunshine are April, May and July, with an average of 7.8h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Heswall. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 4 in May leads to these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Heswall?
What are the least humid months in Heswall?
What is the average humidity in May in Heswall?
How much does it rain in Heswall in May?
When it does not snow in Heswall?
Does it snow in Heswall in May?
What is the average length of the day in May in Heswall?
When are sunrise and sunset in May in Heswall?
What is the month with the most sunshine in Heswall?
How long on average sun shines in May in Heswall?
When is the highest UV index in Heswall?
How high is the UV index in May in Heswall?
Average temperature in May
Heswall, United Kingdom
- Average high temperature in May: 14.1°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (3.6°C).
Average pressure in May
Heswall, United Kingdom
- Average pressure in May: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in May
Heswall, United Kingdom
- Average wind speed in May: 15.2km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).
Average humidity in May
Heswall, United Kingdom
- Average humidity in May: 79%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in May
Heswall, United Kingdom
- Average rainfall in May: 40mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in May
Heswall, United Kingdom
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in May
Heswall, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Heswall, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.3 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
Heswall, United Kingdom
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 7h and 5min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in May
Heswall, United Kingdom
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is March (11.8 days).
The month with the least sunshine days is August (4.7 days).
Average UV index in May
Heswall, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Heswall, United Kingdom
- Average cloud cover in May: 48
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in May
Heswall, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
