IrelandThe weather in August in Donegal
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.
Looking for sun? August isn’t a good month to be in Donegal. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Donegal, Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 25°C in 2016, Donegal reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 13°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 17°C.
Rainfall amount
In August, there is an average of 101 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Daily weather in August for Donegal
Click on any day in August to get detailed info about the usual weather on that day in Donegal. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Donegal | New York | |
|---|---|---|
| Average temperature | 18°C | 30°C |
| Max. temperature | 19°C | 31°C |
| Min. temperature | 10°C | -5°C |
| Total precipitation | 101 mm | 79 mm |
| Rainy days | 13 days | 13 days |
Start of August
The month of August starts in Donegal with mild temps, averaging around 18°C during the day and nights around 13°C.
Mid August
By mid-August, daytime temps rise to 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 Donegal is around 18°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
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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.
Check out the climate of Donegal for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in Donegal, Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Donegal
Temperature in August in Donegal over the years
Precipitation charts
These charts show the average amount of precipitation in August in Donegal, Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Donegal
Total precipitation in August in Donegal over the years
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.
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.