Temperature in Donegal County in September

Daytime highs, nighttime lows and the warmest cities in Donegal County, Ireland this September.

Donegal County, Ireland, a region in Ireland, typically experiences mild weather in September, with maximum daytime temperatures around 17°C (63°F) and nighttime temperatures around 10°C (50°F) in Bundoran.

What is the temperature of the different cities in Donegal County, Ireland in September?

To get a sense of September's typical temperatures in the key spots of Donegal County, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Donegal County, check out our Donegal County's climate page.

See also: Donegal County weather by month.

Best Places to Visit in Donegal County in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Donegal County.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

Donegal County temperatures in September: frequently asked questions

How hot does it get in Donegal County, Ireland in September?

Bundoran averages a daytime high of 17°C (63°F) in September, which is moderate for Donegal County, Ireland.

How cold does it get at night in Donegal County, Ireland in September?

Nighttime temperatures in Bundoran typically drop to around 10°C (50°F) in September.

Interested in more climate information?

We have much more information about the climate in Donegal County.

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