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
Weather in May
Temperature
Harlow starts May with an average high-temperature of a comfortable 16°C (60.8°F), a minor shift from April's 13.6°C (56.5°F). Harlow's average low-temperature for the month of May records at a frosty 7.3°C (45.1°F).Humidity
In May, the average relative humidity is 80%.Rainfall
In Harlow, during May, the rain falls for 14.3 days and regularly aggregates up to 29mm (1.14") of precipitation. In Harlow, during the entire year, the rain falls for 159.7 days and collects up to 378mm (14.88") of precipitation.Snowfall
April through October are months without snowfall in Harlow.Daylight
The average length of the day in May is 15h and 40min.On the first day of May in Harlow, sunrise is at 5:29 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 4:46 am and sunset at 9:07 pm BST.
Sunshine
In May, the average sunshine in Harlow is 7.4h.UV index
In May, the average daily maximum UV index in Harlow is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 4 in May transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Harlow in May?
What is the average humidity in May in Harlow?
How many days does it rain in May in Harlow?
When it does not snow in Harlow?
What is the average length of the day in May in Harlow?
What time are sunrise and sunset in May in Harlow?
How many hours of sunshine does Harlow have in May?
How high is the UV index in May in Harlow?
Average temperature in May
Harlow, United Kingdom
- Average high temperature in May: 16°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in May: 7.3°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in May
Harlow, United Kingdom
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in May
Harlow, United Kingdom
- Average wind speed in May: 13.7km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in May
Harlow, United Kingdom
- Average humidity in May: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (74%).
Average rainfall in May
Harlow, United Kingdom
- Average rainfall in May: 29mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in May
Harlow, United Kingdom
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is September (11.2 days).
Average snowfall in May
Harlow, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Harlow, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.4 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
Harlow, United Kingdom
- Average daylight in May: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in May
Harlow, United Kingdom
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in May
Harlow, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Harlow, United Kingdom
- Average cloud cover in May: 51
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 47).
Average visibility in May
Harlow, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Harlow, United Kingdom
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