Temperatures in August
It's cool to moderate in August in Donegal with an average temperature of 18°C. Temperatures this month range from a low of 17°C to a high of 19°C. At night, you can expect temperatures between 10°C and 14°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Donegal in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Donegal with mild temperatures, averaging around 18°C during the day and nights close to 13°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-August
By mid-August, the average daytime temperature rises to around 19°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of August
By the end of August, the average daytime temperature in Donegal will be around 18°C, with nights close to 12°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in August
In August, there is an average of 101 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Across the whole month, the average precipitation chance is 58% per day. Though that seems frequent, the weather’s variable. There are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Donegal. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Donegal in August |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 22°C | |
 High Temp |
19°C | 24°C | |
| Low Temp |
17°C | 19°C | |
 Total Precipitation |
101 mm | 60 mm | |
| Rainy Days |
18 days | 10 days | |
July
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is August a good time to visit Donegal?
After some sun? Then August isn’t the best time to be in Donegal. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Donegal in August
With 25°C, Donegal hit the highest temperature in the last 10 years in August 2016. The lowest daytime temperature in this month was 13°C in 2020. The extreme night temperatures ranged from a low of 4°C to a high of 17°C.
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Daily Temperature in August in Donegal
This chart shows the average daily temperatures, both day and night, for each day in August in Donegal, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Donegal
The chart below shows the average daily precipitation in August for Donegal, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 18 days of rain in Donegal.
Daily UV Index in August in Donegal
This chart shows the average daily UV index in August in Donegal, 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 Donegal Over the Years
This chart shows the average temperature in August in Donegal, measured in degrees Celsius, over the past years.
Total Precipitation in August in Donegal Over the Years
This chart shows the average precipitation in August in Donegal, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Donegal
Click on a specific day in August for detailed info on the typical weather on that day in Donegal. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Donegal
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Average Weather in Donegal by Month
Click on a month below to see detailed weather info for Donegal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
