Weather in Ireland - today, tomorrow and 14-day forecast

Right now temperatures across Ireland range from 17° to 18°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

Country values are the median of forecasts from 10 cities; the range shows local differences. Methodology.

Weather in Ireland's cities today

☁️Dublin 18°💧 0.2 mm ☁️Belfast 18°💧 0.1 mm ☁️Swords 18°💧 0.3 mm 🌧️Kilkenny 18°💧 0.5 mm 🌧️Athlone 18°💧 0.1 mm 🌧️Galway 17°💧 0.7 mm 🌧️Cork 17°💧 0.1 mm 🌧️Waterford 17°💧 0.2 mm 🌧️Limerick 17°💧 0.9 mm 🌧️Sligo 17°💧 0.3 mm

Weather map - today's temperatures

Pill colour shows today's daytime temperature. Click a city for its full 14-day forecast.

Next days in Ireland

today🌧️ 17°💧 0.2 mm

Sun🌧️ 20°💧 1.2 mm

Mon🌧️ 16°💧 1.5 mm

Tue🌧️ 16°💧 1 mm

Wed🌧️ 16°💧 1.1 mm

Thu🌧️ 19°💧 0.7 mm

Fri🌧️ 16°💧 0.9 mm

Sat🌧️ 12°💧 6.3 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Thursday 10 Sept in Ireland, the forecast high is 19°C. Typical daytime temperatures at this time of year range from 15°C to 19°C, so it will be warmer than usual. It is warmer than 89% of similar days.

Saturday 5 Sept

17°Cnear normal

usually 16°C–19°C

night: exceptionally warm rain: less rain than usual wind: typical

Sunday 6 Sept

20°Cwarmer than usual

usually 16°C–19°C

warmer than 87% of similar days

night: exceptionally warm rain: typical rainfall wind: typical

Monday 7 Sept

16°Cnear normal

usually 15°C–19°C

night: warmer than usual rain: typical rainfall wind: typical

Tuesday 8 Sept

16°Cnear normal

usually 15°C–19°C

night: warmer than usual rain: typical rainfall wind: typical

Wednesday 9 Sept

16°Ccooler than usual

usually 15°C–19°C

cooler than 71% of similar days

night: warmer than usual rain: typical rainfall wind: typical

Thursday 10 Sept

19°Cwarmer than usual

usually 15°C–19°C

warmer than 89% of similar days

night: exceptionally warm rain: typical rainfall wind: typical

Friday 11 Sept

16°Cnear normal

usually 15°C–18°C

night: near normal rain: typical rainfall wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 17°C by day. The coolest year was 1994 (14°C) and the warmest was 2023 (22°C). The current forecast averages 17°C - higher than in 64% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Ireland

No active weather warnings for Ireland. The national weather service is not forecasting dangerous conditions.

14-day forecast - Ireland

Ireland - 14-day weather forecast infographic

Ireland 30 & 45-day weather - long-range outlook

Next 16 days · forecast

17°

around 13° at night · days with rain: 9

Weeks 3-4 · avg for September

17°

around 10° at night · rain chance 64%

Weeks 5-7 · avg for October

14°

around 9° at night · rain chance 69%

The 30 & 45-day outlook for Ireland: the next 16 days are a numerical forecast updated daily - on average 17° by day and 13° at night. Further out we rely on multi-year climate averages: around 17° in September, and about 14° in October. Forecasts beyond two weeks are indicative only.

Today vs the next days - Ireland cities

City	Today	+3 days	+7 days	Rain today
☁️ Dublin	18℃	17℃	13℃	0.2 mm
☁️ Belfast	18℃	12℃	18℃	0.1 mm
☁️ Swords	18℃	16℃	12℃	0.3 mm
🌧️ Kilkenny	18℃	16℃	12℃	0.5 mm
🌧️ Athlone	18℃	14℃	11℃	0.1 mm
🌧️ Galway	17℃	14℃	12℃	0.7 mm
🌧️ Cork	17℃	17℃	17℃	0.1 mm
🌧️ Waterford	17℃	16℃	13℃	0.2 mm
🌧️ Limerick	17℃	16℃	13℃	0.9 mm
🌧️ Sligo	17℃	12℃	12℃	0.3 mm

Day-by-day forecast for Ireland

Saturday5 September 2026

🌧️17°light rain

night 15° · evening 16° · rain 0.21000000000000002 mm · humidity 60% · wind 6 m/s · clouds 73.5%

Sunday6 September 2026

🌧️20°light rain

night 14° · evening 19° · rain 1.18 mm · humidity 82% · wind 8 m/s · clouds 99.5%

Monday7 September 2026

🌧️16°light rain

night 12° · evening 14° · rain 1.475 mm · humidity 75% · wind 8 m/s · clouds 100%

Tuesday8 September 2026

🌧️16°light rain

night 12° · evening 14° · rain 1.02 mm · humidity 60% · wind 9 m/s · clouds 50.5%

Wednesday9 September 2026

🌧️16°light rain

night 13° · evening 13° · rain 1.12 mm · humidity 65.5% · wind 6 m/s · clouds 100%

Thursday10 September 2026

🌧️19°light rain

night 15° · evening 18° · rain 0.735 mm · humidity 66.5% · wind 7 m/s · clouds 100%

Friday11 September 2026

🌧️16°light rain

night 11° · evening 14° · rain 0.87 mm · humidity 57.5% · wind 7 m/s · clouds 89%

Saturday12 September 2026

🌧️12°light rain

night 12° · evening 12° · rain 6.345000000000001 mm · humidity 93.5% · wind 4 m/s · clouds 100%

Sunday13 September 2026

☀️18°clear sky

night 12° · evening 16° · rain 3.3899999999999997 mm · humidity 64.5% · wind 4 m/s · clouds 8.5%

Monday14 September 2026

☀️19°clear sky

night 12° · evening 16° · rain 0.45 mm · humidity 59% · wind 3 m/s · clouds 13%

Tuesday15 September 2026

🌧️17°light rain

night 13° · evening 16° · rain 0.15 mm · humidity 71% · wind 5 m/s · clouds 85%

Wednesday16 September 2026

🌧️17°light rain

night 12° · evening 15° · rain 1.125 mm · humidity 76% · wind 8 m/s · clouds 47%

Thursday17 September 2026

🌧️17°moderate rain

night 16° · evening 14° · rain 7.35 mm · humidity 70.5% · wind 7 m/s · clouds 95%

Friday18 September 2026

🌧️17°heavy rain

night 13° · evening 14° · rain 10.35 mm · humidity 88.5% · wind 11 m/s · clouds 100%

Saturday19 September 2026

🌧️17°light rain

night 12° · evening 14° · rain 0.855 mm · humidity 68% · wind 3 m/s · clouds 100%

Sunday20 September 2026

🌤️18°scattered clouds

night 15° · evening 15° · humidity 66.5% · wind 3 m/s · clouds 26%

Sea temperature - Ireland

Beach	Water today	Water week avg	Waves	How's the water?
Galway	18℃	17℃	0.5 m	cold
Dublin	17℃	17℃	0.2 m	cold
Swords	17℃	17℃	0.2 m	cold
Waterford	17℃	17℃	0.6 m	cold
Sligo	17℃	17℃	1.4 m	cold
Cork	16℃	15℃	0.5 m	very cold

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Ireland

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Dublin	5.3	12.1	very good
Cork City	4.3	17.2	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 02:00).

Ireland weather through the year

Ireland weather month by month - when is the best time to go?

January (8°)February (8°)March (9°)April (12°)May (15°)June (18°)July (19°)August (18°)September (17°)October (14°)November (10°)December (9°)

Weather in other countries in Europe

Isle of ManIcelandItalyHungaryLatviaGreece

Public holidays in Ireland - when are the long weekends?

Next long weekend in Ireland: October Holiday (26 October, Monday) - Saturday–Monday (3 days off).

2026

26 OctoberMonday

October Holiday

long weekend

25 DecemberFriday

Christmas Day

long weekend

26 DecemberSaturday

St. Stephen's Day

falls on a weekend

2027

1 JanuaryFriday

New Year's Day

long weekend

1 FebruaryMonday

Saint Brigid's Day

long weekend

17 MarchWednesday

Saint Patrick's Day

29 MarchMonday

Easter Monday

long weekend

3 MayMonday

May Day

long weekend

7 JuneMonday

June Holiday

long weekend

2 AugustMonday

August Holiday

long weekend

25 OctoberMonday

October Holiday

long weekend

25 DecemberSaturday

Christmas Day

falls on a weekend

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave. Lunar holiday dates marked as tentative may shift by one day after the official announcement.

Calendar sources

Nager.Date public holiday database

FAQ - Ireland weather

What is the weather like in Ireland today?

Today it is about 17° during the day and 15° at night, light rain.

How far ahead can I check the forecast for Ireland?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.