August weather forecastGrimsby, United Kingdom
August
Weather in August
The last month of the summer, August, is another refreshing month in Grimsby, United Kingdom, with an average temperature ranging between max 19.5°C (67.1°F) and min 13.8°C (56.8°F).Temperature
August, recording an average high temperature of 19.5°C (67.1°F) and a low temperature of 13.8°C (56.8°F), is Grimsby's warmest month.Humidity
The least humid month is August, with an average relative humidity of 76%.Rainfall
In August, in Grimsby, United Kingdom, the rain falls for 14.4 days. Throughout August, 32mm (1.26") of precipitation is accumulated. 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
The month with the warmest seawater in Grimsby, United Kingdom, is August, with an average sea temperature of 15.7°C (60.3°F).Note: For the majority, swimming in 15.7°C (60.3°F) does not offer a pleasant experience. Below 21°C (69.8°F), the difficulty in controlling breathing escalates.
Daylight
In Grimsby, the average length of the day in August is 14h and 45min.On the first day of August, sunrise is at 5:16 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:52 pm BST.
Sunshine
The month with the most sunshine in Grimsby, United Kingdom, is August, with an average of 7.8h of sunshine.UV index
In Grimsby, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: During August, 4 as the daily maximum UV index converts into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grimsby, United Kingdom
- Average high temperature in August: 19.5°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 August: 13.8°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 August
Grimsby, United Kingdom
- Average pressure in August: 1013.4mbar
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 August
Grimsby, United Kingdom
- Average wind speed in August: 16.6km/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 August
Grimsby, United Kingdom
- Average humidity in August: 76%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (76%).
Average rainfall in August
Grimsby, United Kingdom
- Average rainfall in August: 32mm
The wettest month (with the highest rainfall) is October (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in August
Grimsby, United Kingdom
- Average rainfall days in August: 14.4 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 August
Grimsby, United Kingdom
- Average snowfall in August: 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 August
Grimsby, United Kingdom
- Average snowfall days in August: 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 August
Grimsby, United Kingdom
- Average sea temperature in August: 15.7°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 August /
Average sunshine in August
Grimsby, United Kingdom
- Average daylight in August: 14h and 48min
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 August: 7h and 48min
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 August
Grimsby, United Kingdom
- Average sunshine days in August: 14.3 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 August
Grimsby, United Kingdom
- Average UV index in August: 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 August
Grimsby, United Kingdom
- Average cloud cover in August: 49
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 August
Grimsby, United Kingdom
- Average visibility in August: 10km
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).





