Ireland Weather by Month – Climate & Best Time to Visit

Ireland in January

In January the weather in Ireland is generally less favorable. January is a winter month. The average maximum daytime temperatures are low and range from 8°C (46°F) in Donegal to 11°C (52°F) in Portmagee. On average, this month is the coldest month of the year in Ireland.

Find more detailed climate information for Ireland in January here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

Ireland in February

In February the weather in Ireland is generally less favorable. February is a winter month. In Dublin you can expect cold maximum average daytime temperatures around 10°C (50°F) and nighttime temperatures around 4°C (39°F).

Find more detailed climate information for Ireland in February here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in February: pale blue is dry, deep blue is wet.

Ireland in March

In March the weather in Ireland ranges from less favorable in Kenmare to mixed in Dublin. The average maximum daytime temperatures are low and range from 10°C (50°F) in Greencastle to 12°C (54°F) in Ballybunion.

Find more detailed climate information for Ireland in March here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in March: pale blue is dry, deep blue is wet.

Ireland in April

In April the weather in Ireland ranges from less favorable in Killarney to good in Galway. The temperatures range from low in Greencastle with 11°C (52°F) to moderate in Galway with 14°C (57°F).

Find more detailed climate information for Ireland in April here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in April: pale blue is dry, deep blue is wet.

Ireland in May

In May the weather in Ireland ranges from mixed in Kenmare to good in Dublin. The average maximum daytime temperatures are moderate and range from 13°C (55°F) in Greencastle to 16°C (61°F) in Tullamore.

Find more detailed climate information for Ireland in May here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in May: pale blue is dry, deep blue is wet.

Ireland in June

In June the weather in Ireland ranges from mixed in Doolin to very good in Dublin. June is a summer month. The temperatures range from moderate in Greencastle with 15°C (59°F) to pleasant in Navan with 19°C (66°F).

Find more detailed climate information for Ireland in June here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in June: pale blue is dry, deep blue is wet.

Ireland in July

In July the weather in Ireland ranges from mixed in Renvyle to excellent in Dublin. July is a summer month. The temperatures range from moderate in Greencastle with 16°C (61°F) to pleasant in Slane with 20°C (68°F). On average, this month is the warmest month of the year in Ireland.

Find more detailed climate information for Ireland in July here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in July: pale blue is dry, deep blue is wet.

Ireland in August

In August the weather in Ireland ranges from good in Killarney to excellent in Dublin. August is a summer month. The temperatures range from moderate in Greencastle with 17°C (63°F) to pleasant in Drogheda with 20°C (68°F).

Find more detailed climate information for Ireland in August here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in August: pale blue is dry, deep blue is wet.

Ireland in September

In September the weather in Ireland ranges from mixed in Westport to very good in Dublin. The temperatures range from moderate in Greencastle with 16°C (61°F) to pleasant in Drogheda with 18°C (64°F).

Find more detailed climate information for Ireland in September here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.

Ireland in October

In October the weather in Ireland ranges from mixed in Killarney to good in Dublin. In Dublin you can expect mild maximum average daytime temperatures around 15°C (59°F) and nighttime temperatures around 9°C (48°F).

Find more detailed climate information for Ireland in October here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in October: pale blue is dry, deep blue is wet.

Ireland in November

In November the weather in Ireland ranges from less favorable in Killarney to mixed in Dublin. The temperatures range from low in Ballybofey with 11°C (52°F) to moderate in Rosslare with 13°C (55°F).

Find more detailed climate information for Ireland in November here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in November: pale blue is dry, deep blue is wet.

Ireland in December

In December the weather in Ireland is generally less favorable. December is a winter month. The average maximum daytime temperatures are low and range from 9°C (48°F) in Laghy to 11°C (52°F) in Portmagee.

Find more detailed climate information for Ireland in December here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marker color shows total monthly precipitation in December: pale blue is dry, deep blue is wet.

Ireland Weather by Month: Temperature & Rainfall Guide

Ireland in January

Ireland in February

Ireland in March

Ireland in April

Ireland in May

Ireland in June

Ireland in July

Ireland in August

Ireland in September

Ireland in October

Ireland in November

Ireland in December

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