Weather by month in Donegal County

Donegal County is a region in Ireland. Many people wonder what the weather conditions are in Donegal County over the year. What is the best time to visit Donegal County?

This page shows the average weather conditions by month in Donegal County over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Donegal County is generally poor. January is a winter month. In Bundoran you can expect cold maximum average daytime temperatures around 9°C and nighttime temperatures around 3°C. On average, this month is the coldest month of the year in Donegal County.

Find more detailed climate information for Donegal County in January here.

In February the weather in Donegal County is generally poor. February is a winter month. In Bundoran you can expect cold maximum average daytime temperatures around 9°C and nighttime temperatures around 3°C.

Find more detailed climate information for Donegal County in February here.

In March the weather in Donegal County ranges from poor in Bundoran to unpleasant in Letterkenny. In Bundoran you can expect cold maximum average daytime temperatures around 11°C and nighttime temperatures around 4°C.

Find more detailed climate information for Donegal County in March here.

In April the weather in Donegal County ranges from poor in Dunglow to unpleasant in Bundoran. The temperatures range from low in Greencastle with 11°C to moderate in Bundoran with 13°C.

Find more detailed climate information for Donegal County in April here.

In May the weather in Donegal County ranges from poor in Annagry to tolerable in Letterkenny. The average maximum daytime temperatures are moderate and range from 13°C in Greencastle to 16°C in Bundoran.

Find more detailed climate information for Donegal County in May here.

In June the weather in Donegal County ranges from unpleasant in Donegal to tolerable in Bundoran. June is a summer month. The average maximum daytime temperatures are moderate and range from 15°C in Greencastle to 18°C in Bundoran.

Find more detailed climate information for Donegal County in June here.

In July the weather in Donegal County ranges from unpleasant in Moville to pleasant in Ballyliffin. July is a summer month. The temperatures range from moderate in Greencastle with 16°C to pleasant in Burt with 19°C. On average, this month is the warmest month of the year in Donegal County.

Find more detailed climate information for Donegal County in July here.

In August the weather in Donegal County ranges from unpleasant in Moville to tolerable in Bundoran. August is a summer month. In Bundoran you can expect pleasant maximum average daytime temperatures around 19°C and nighttime temperatures around 12°C.

Find more detailed climate information for Donegal County in August here.

In September the weather in Donegal County ranges from unpleasant in Bundoran to tolerable in Letterkenny. In Bundoran you can expect mild maximum average daytime temperatures around 17°C and nighttime temperatures around 10°C.

Find more detailed climate information for Donegal County in September here.

In October the weather in Donegal County ranges from unpleasant in Bundoran to tolerable in Derry. In Bundoran you can expect mild maximum average daytime temperatures around 14°C and nighttime temperatures around 8°C.

Find more detailed climate information for Donegal County in October here.

In November the weather in Donegal County ranges from poor in Bundoran to unpleasant in Derry. In Bundoran you can expect cold maximum average daytime temperatures around 11°C and nighttime temperatures around 5°C.

Find more detailed climate information for Donegal County in November here.

In December the weather in Donegal County is generally poor. December is a winter month. In Bundoran you can expect cold maximum average daytime temperatures around 9°C and nighttime temperatures around 3°C.

Find more detailed climate information for Donegal County in December here.