Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The advent of August in Belfast brings an average high-temperature of a still refreshing 16.7°C (62.1°F), almost identical to the preceding month. Nighttime temperature in Belfast lowers to an average of 11.3°C (52.3°F) in August.Humidity
The average relative humidity in August is 87%.Rainfall
August is the month with the most rainfall in Belfast. Rain falls for 23 days and accumulates 72mm (2.83") of precipitation.Snowfall
In Belfast, snow does not fall in April through October.Sea temperature
In Belfast, the average seawater temperature in August is 14.2°C (57.6°F).Note: Caution: 14.2°C (57.6°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.
Daylight
In Belfast, the average length of the day in August is 14h and 52min.On the first day of August in Belfast, sunrise is at 5:35 am and sunset at 9:24 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:17 pm BST.
Sunshine
In August, the average sunshine is 6.4h.UV index
The months with the highest UV index in Belfast are May through August, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: During August, 4 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are August temperatures in Belfast?
What is the average humidity in August in Belfast?
What is the rainiest month in Belfast?
How many days does it rain in August in Belfast?
When it does not snow in Belfast?
How cold is the water in August in Belfast?
How many hours of daylight does Belfast have in August?
What time are sunrise and sunset in August in Belfast?
How many hours of sunshine does Belfast have in August?
When is the highest UV index in Belfast?
What is the UV index reading in August in Belfast?
Average temperature in August
Belfast, United Kingdom
- Average high temperature in August: 16.7°C
The warmest month (with the highest average high temperature) is July (16.9°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in August: 11.3°C
The month with the highest average low temperature is August (11.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in August
Belfast, United Kingdom
- Average pressure in August: 1011.8mbar
The month with the highest atmospheric pressure is May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed in August
Belfast, United Kingdom
- Average wind speed in August: 15.3km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.7km/h).
Average humidity in August
Belfast, United Kingdom
- Average humidity in August: 87%
The months with the highest relative humidity are January and December (88%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall in August
Belfast, United Kingdom
- Average rainfall in August: 72mm
The wettest month (with the highest rainfall) is August (72mm).
The driest month (with the least rainfall) is May (38mm).
Average rainfall days in August
Belfast, United Kingdom
- Average rainfall days in August: 23 days
The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is April (16.1 days).
Average snowfall in August
Belfast, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in August
Belfast, 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 April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Belfast, United Kingdom
- Average sea temperature in August: 14.2°C
The best month for swimming (with the highest average sea temperature) is September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8°C).
Average daylight in August /
Average sunshine in August
Belfast, United Kingdom
- Average daylight in August: 14h and 5min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in August: 6h and 2min
The month with the most sunshine is June (Average sunshine: 7h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in August
Belfast, United Kingdom
- Average sunshine days in August: 5.6 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in August
Belfast, United Kingdom
- Average UV index in August: 4
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Belfast, United Kingdom
- Average cloud cover in August: 60
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in August
Belfast, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Belfast, United Kingdom
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