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 sea temperature 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
The beginning of May reveals an average high-temperature of a still fresh 12.5°C (54.5°F), showing minimal deviation from the previous month. Night temperatures during May in Portrush, United Kingdom, experience a slight downturn, averaging a chilly 7.7°C (45.9°F).Humidity
In Portrush, the average relative humidity in May is 82%.Rainfall
In Portrush, in May, during 18.6 rainfall days, 42mm (1.65") of precipitation is typically accumulated. Throughout the year, in Portrush, there are 238.3 rainfall days, and 632mm (24.88") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Portrush.Sea temperature
In Portrush, in May, the average water temperature is 10.2°C (50.4°F).Note: Swimming at temperatures less than 10°C (50°F) in 10.2°C (50.4°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.
Daylight
In May, the average length of the day in Portrush is 16h and 13min.On the first day of the month, sunrise is at 5:44 am and sunset at 9:03 pm. On the last day of May, in Portrush, sunrise is at 4:54 am and sunset at 9:54 pm BST.
Sunshine
In Portrush, the average sunshine in May is 7.1h.UV index
May, June, August and September, with an average maximum UV index of 4, are months with the highest UV index. 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: A daily maximum UV index of 4 in May translates into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are the temperatures in Portrush in May?
What is the average humidity in May in Portrush?
How much does it rain in Portrush in May?
When it does not snow in Portrush?
Does it snow in Portrush in May?
How cold is the water in May in Portrush?
What is the average length of the day in May in Portrush?
When is the sunrise / sunset in May in Portrush?
How many hours of sunshine does Portrush have in May?
When is the highest UV index in Portrush?
What is the UV index reading in May in Portrush?
Average temperature in May
Portrush, United Kingdom
- Average high temperature in May: 12.5°C
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in May: 7.7°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure in May
Portrush, United Kingdom
- Average pressure in May: 1015.2mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.6mbar).
Average wind speed in May
Portrush, United Kingdom
- Average wind speed in May: 19.5km/h
The windiest month (with the highest average wind speed) is January (27.5km/h).
The calmest month (with the lowest average wind speed) is July (16.7km/h).
Average humidity in May
Portrush, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in May
Portrush, United Kingdom
- Average rainfall in May: 42mm
The wettest months (with the highest rainfall) are July and August (74mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in May
Portrush, United Kingdom
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is April (16.8 days).
Average snowfall in May
Portrush, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Portrush, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Portrush, United Kingdom
- Average sea temperature in May: 10.2°C
The best month for swimming (with the highest average sea temperature) is August (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in May /
Average sunshine in May
Portrush, United Kingdom
- Average daylight in May: 16h and 1min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in May: 7h and 1min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Portrush, United Kingdom
- Average sunshine days in May: 8.3 days
The month with the most sunshine days is April (9.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in May
Portrush, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, 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
Portrush, United Kingdom
- Average cloud cover in May: 54
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in May
Portrush, United Kingdom
- Average visibility in May: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
Portrush, United Kingdom
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