Normal weather for Belfast in August
It's hot in August in Belfast with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 32°C. At night, you can expect temperatures between 19°C and 23°C.
In August, there is an average of 123 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the South.
Belfast in August |
New York | ||
|---|---|---|---|
 Average Temperature |
30°C | 30°C | |
 High Temp |
32°C | 31°C | |
| Low Temp |
29°C | 28°C | |
 Total Precipitation |
123 mm | 79 mm | |
| Rainy Days |
15 days | 13 days | |
Start of August
The month of August starts in Belfast with hot temps, averaging around 31°C during the day and nights around 21°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
Mid August
By mid-August, daytime temps drop to around 30°C, with nights around 21°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
End of August
By the end of August, the average daytime temperature in Belfast is around 31°C, while nighttime temps are about 21°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.
Find affordable trips to Belfast 
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 Belfast?
Looking for sun? August isn’t a good month to be in Belfast. The temperature is nice, but there’s too much chance of rain.
Temperature records for Belfast in August
Check out the climate of Belfast for all months and discover the best travel time
July
Plan your next vacation
Don’t miss the best vacation deals for Belfast and see what our partners have for you.
Daily Temperature in August in Belfast
This chart shows the average daily high and low temperatures in August for Belfast, 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 Belfast
The chart below shows the average daily precipitation in August for Belfast, 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 15 days of precipitation in Belfast.
Daily UV Index in August in Belfast
This chart shows the average daily UV index in August in Belfast, 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 Belfast Over the Years
This chart shows the average temperature in August in Belfast, measured in degrees Celsius, over the past few years.
Total Precipitation in August in Belfast Over the Years
This chart shows the average precipitation in August in Belfast, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in August for Belfast
Click on any day in August to get detailed info about the usual weather on that day in Belfast. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Belfast
Have you been to Belfast in August?
Share your weather experience in August in Belfast.
Average Weather in Belfast by Month
Click on a month below to see detailed weather info for Belfast. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
