Average weather for Northern Ireland in August
It's cool to moderate in August in Northern Ireland with an average temperature of 18°C. Temperatures this month range from a low of 17°C to a high of 20°C. At night, you can expect temperatures between 11°C and 14°C.
Start of August
The month of August starts in Northern Ireland with mild temps, averaging around 19°C during the day and nights around 13°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid August
By mid-August, daytime temps stay steady at around 19°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of August
By the end of August, the average daytime temperature in Northern Ireland is around 19°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
In August, there is an average of 93 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Northern Ireland in August |
New York | ||
|---|---|---|---|
 Average temperature |
18°C | 30°C | |
 Max. temperature |
20°C | 31°C | |
| Min. temperature |
17°C | -5°C | |
 Total precipitation |
93 mm | 79 mm | |
| Rainy days |
16 days | 13 days | |
July
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is August a good time to visit Northern Ireland?
Looking for great weather? August is a good time to be in Northern Ireland. The temperatures are nice, and there’s not too much rain.
Temperature records
With 27°C in 2022, Northern Ireland reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 12°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 17°C.
Check out the climate of Northern Ireland for all months and discover the best travel time
You can check out all destinations in Northern Ireland to get the full picture of the climate.
Daily Temperature in August in Northern Ireland
This chart shows the average daily high and low temperatures in August for Northern Ireland, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Northern Ireland
The chart below shows the average daily precipitation in August for Northern Ireland, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 16 days of precipitation in Northern Ireland.
Daily UV index in August in Northern Ireland
This chart shows the average daily UV index in August in Northern Ireland, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Northern Ireland over the years
This chart shows the average temperature in August in Northern Ireland, measured in degrees Celsius, over the past few years.
Total precipitation in August in Northern Ireland over the years
This chart shows the average precipitation in August in Northern Ireland, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Northern Ireland
Click on any day in August to get detailed info about the usual weather on that day in Northern Ireland. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Northern Ireland
Have you been to Northern Ireland in August?
Share your weather experience in August in Northern Ireland.
Average weather in Northern Ireland by month
Click on a month below to see detailed weather info for Northern Ireland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Northern Ireland for all months at once
