Northern Ireland - United Kingdom weather in August 2025
Northern Ireland - United Kingdom weather in August 2025
Day
18 °C
Night
11 °C
Sea
14 °C
Precipitation
92 mm
in month
Rainy days
16 days
in month
Daylight
15 hours
average
Sunshine
4 hours
average
Humidity
87 %
Day
18 °C
Night
11 °C
Sea
14 °C
Precipitation
92 mm
in month
Rainy days
16 days
in month
Daylight
15 hours
average
Sunshine
4 hours
average
Humidity
87 %
Overview: Northern Ireland - United Kingdom
Travel information
Weather charts for Northern Ireland - United Kingdom
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
Find more destinations like this
Activities in Northern Ireland - United Kingdom
Destinations in Northern Ireland - United Kingdom
Destinations with similar weather to Northern Ireland - United Kingdom
Weather overview and FAQs
Weather overview
In August in Northern Ireland, the average air temperature ranges from 18 °C (65 °F) during the day to 11 °C (52 °F) at night. There are 16 days of rain on average, where the rainfall is 92 mm (3.64 in).
Is August a good month to visit Northern Ireland?
There are good conditions for visiting in Northern Ireland in August. There are some people, who may feel a slight chill at 18 °C (65 °F), but others will feel perfectly fine. The temperature of 11 °C (52 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What temperature can I expect during the day in Northern Ireland in August?
In August in Northern Ireland, the average daily temperatures will be 18 °C (65 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
What is the average number of rainy days in Northern Ireland in August?
In Northern Ireland in August, we can expect 16 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.7 days of the week, or in general - 53 % days.
How long is the day (from dawn till dusk) in Northern Ireland in August?
The length of daylight in Northern Ireland in August is 15 hours.
What is the rainfall intensity in Northern Ireland in August?
In Northern Ireland in August, there is 92 mm (3.64 in) rainfall, which means on average 3 mm (0.12 in) rainfall per day.
What is the night temperature in August in Northern Ireland?
The average night temperature in Northern Ireland in August is 11 °C (52 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
How many sunny hours can I expect in August in Northern Ireland?
There is an average length of sunshine of 4 hours per day in August in Northern Ireland.
What level of humidity is to expect in August in Northern Ireland?
Humidity in Northern Ireland in August is 87 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
Is there a wet season in August in Northern Ireland?
No, there is no wet season in Northern Ireland in August - you can expect 16 days of rain during the month.
How windy is Northern Ireland in August?
In August in Northern Ireland, there will be an average wind scale of 5.
Is the weather in Northern Ireland warmer in August than in July?
No, in Northern Ireland in August the temperature is not higher than in July.
Is Northern Ireland rainier in August than in September?
No, in Northern Ireland in August it does not rain more than in September.