May weather forecastHarmston, United Kingdom
May
Weather in May
The last month of the spring, May, is a moderate month in Harmston, United Kingdom, with an average temperature varying between 6.8°C (44.2°F) and 15.3°C (59.5°F).Temperature
May's onset sees an average high-temperature of a moderate 15.3°C (59.5°F), exhibiting a slight fluctuation from the previous month. Throughout May, Harmston experiences a low-temperature average of 6.8°C (44.2°F).Humidity
The average relative humidity in May in Harmston is 81%.Rainfall
In May, the rain falls for 15.3 days. Throughout May, 24mm (0.94") of precipitation is accumulated. Throughout the year, in Harmston, there are 158.5 rainfall days, and 307mm (12.09") of precipitation is accumulated.Snowfall
In Harmston, snow does not fall in April through October.Daylight
In Harmston, the average length of the day in May is 15h and 52min.On the first day of the month, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of May, in Harmston, sunrise is at 4:42 am and sunset at 9:17 pm BST.
Sunshine
In Harmston, the average sunshine in May is 7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In May, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harmston, United Kingdom
- Average high temperature in May: 15.3°C
The warmest months (with the highest average high temperature) are July and August (20.3°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in May: 6.8°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in May
Harmston, United Kingdom
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in May
Harmston, United Kingdom
- Average wind speed in May: 14km/h
The windiest months (with the highest average wind speed) are February and December (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in May
Harmston, United Kingdom
- Average humidity in May: 81%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Harmston, United Kingdom
- Average rainfall in May: 24mm
The wettest month (with the highest rainfall) is June (37mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in May
Harmston, United Kingdom
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (11.1 days).
Average snowfall in May
Harmston, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Harmston, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5 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
Harmston, United Kingdom
- Average daylight in May: 15h and 54min
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 0min
The month with the most sunshine is August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in May
Harmston, United Kingdom
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in May
Harmston, 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, March, November and December (UV index 2).
Average cloud cover in May
Harmston, United Kingdom
- Average cloud cover in May: 54
The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in May
Harmston, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, July, August, September, October and December (9km).
The months with the lowest visibility are June and November (8km).





