May weather forecastGrimsby, United Kingdom
May
Weather in May
May, the last month of the spring in Grimsby, is a moderate month, with temperature in the range of an average low of 7.9°C (46.2°F) and an average high of 13.7°C (56.7°F).Temperature
The transition into May marks the average high-temperature at a refreshing 13.7°C (56.7°F), differing minimally from April's 11.3°C (52.3°F). Grimsby records an average temperature drop to a frosty 7.9°C (46.2°F) in May.Humidity
In May, the average relative humidity is 81%.Rainfall
In Grimsby, in May, it is raining for 13.6 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, in Grimsby, there are 153.7 rainfall days, and 377mm (14.84") of precipitation is accumulated.Snowfall
In Grimsby, snow does not fall in April through October.Sea temperature
In Grimsby, the average seawater temperature in May is 9.9°C (49.8°F).Note: It is risky to swim in 9.9°C (49.8°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
In May, the average length of the day is 15h and 56min.On the first day of the month, sunrise is at 5:23 am and sunset at 8:30 pm. On the last day of May, sunrise is at 4:37 am and sunset at 9:18 pm BST.
Sunshine
In May, the average sunshine in Grimsby is 7.3h.UV index
The average daily maximum UV index in May in Grimsby, United Kingdom, 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 UV index of 4 during May leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grimsby, United Kingdom
- Average high temperature in May: 13.7°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in May: 7.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in May
Grimsby, United Kingdom
- Average pressure in May: 1016.3mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in May
Grimsby, United Kingdom
- Average wind speed in May: 17.2km/h
The windiest month (with the highest average wind speed) is December (23.4km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in May
Grimsby, United Kingdom
- Average humidity in May: 81%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (76%).
Average rainfall in May
Grimsby, United Kingdom
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is October (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in May
Grimsby, United Kingdom
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is September (9.8 days).
Average snowfall in May
Grimsby, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Grimsby, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Grimsby, United Kingdom
- Average sea temperature in May: 9.9°C
The best month for swimming (with the highest average sea temperature) is August (15.7°C).
The coldest months (with the lowest average sea temperature) are February and March (6.6°C).
Average daylight in May /
Average sunshine in May
Grimsby, United Kingdom
- Average daylight in May: 15h and 54min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 7h and 18min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The months with the least sunshine are February and November (Average sunshine: 3h and 42min).
Average sunshine days in May
Grimsby, United Kingdom
- Average sunshine days in May: 14.9 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in May
Grimsby, United Kingdom
- Average UV index in May: 4
The month with the highest UV index is 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
Grimsby, United Kingdom
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are April, August and September (Cloud cover 49).
Average visibility in May
Grimsby, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are February, March, April, August, September and October (10km).
The months with the lowest visibility are January, May, June, July, November and December (9km).
