When is the best time to visit Dublin?

The weather in Dublin, month by month

Daytime and night-time temperatures, then rainfall. Records 2015-2024 (Trinity College). The exact figures are in the table below.
The table of records, month by month
Real 2015-2024 records at the reference point "Trinity College" (ERA5 reanalysis via Open-Meteo). Published as open data.
MonthHighLowSunshineRainfallRainy daysBest
January8°4°4.1 h63 mm12 d
February9°4°5.4 h66 mm13 d
March10°4°7.1 h80 mm14 d
April12°6°9.2 h63 mm12 d
May15°9°11 h65 mm12 d✓
June18°11°11.4 h73 mm13 d✓
July19°13°10.1 h79 mm15 d✓
August19°13°9.7 h82 mm14 d✓
September17°11°8.2 h83 mm13 d✓
October14°9°6.2 h87 mm14 d
November11°6°4.5 h88 mm13 d
December9°5°3.3 h94 mm15 d

The four seasons in Dublin, in figures

What the 2015-2024 records (Trinity College) show, season by season, to compare at a glance instead of reading twelve rows of a table.

Winter

Dec → Feb
8 to 9°
nights 4 to 5°
  • 13 rainy days · 74 mm
  • 4.3 h of sun
Not recommended

Spring

Mar → May
10 to 15°
nights 4 to 9°
  • 13 rainy days · 69 mm
  • 9.1 h of sun
1 month recommended

Summer

Jun → Aug
18 to 19°
nights 11 to 13°
  • 14 rainy days · 78 mm
  • 10.4 h of sun
Recommended

Autumn

Sep → Nov
11 to 17°
nights 6 to 11°
  • 13 rainy days · 86 mm
  • 6.3 h of sun
1 month recommended

Book early for May to September

The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.

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Daylight in Dublin, month by month

The time between sunrise and sunset, from shortest to longest. Not to be confused with the sunshine hours in the table above, which count clear skies. In June there are 16h58 of daylight, in December 7h31, a difference of 9h27.

8h02Jan
9h44Feb
11h41Mar
13h55Apr
15h51May
16h58Jun
16h30Jul
14h46Aug
12h35Sep
10h27Oct
8h31Nov
7h31Dec

Calculated for the latitude of the reference point "Trinity College" (53.34°). Values on the 15th of each month, local solar time.

What to do in Dublin, month by month

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Sightseeing & walks
Long days
Events11111

EventsSt Patrick's DayMarchBloomsdayJuneDublin Horse ShowAugustDublin Theatre FestivalSeptember to OctoberDetails ↓

favourablewith compromisesunfavourable

Grid derived from the records (temperature, rainfall), not from an opinion.

What's on in Dublin, month by month?

What comes back every year, and when. One of these events fills the hotels and pushes prices up: something to aim for or to avoid, depending on what you want.

Travelling off-peak

Month by month, in detail

January

Not recommended
8°4° at night
  • 63 mm · 12 d
  • 4.1 h

Low season, lower prices

February

Not recommended
9°4° at night
  • 66 mm · 13 d
  • 5.4 h

Low season, lower prices

March

Not recommended
10°4° at night
  • 80 mm · 14 d
  • 7.1 h

Busy, without the crush

April

Fair
12°6° at night
  • 63 mm · 12 d
  • 9.2 h

Low season, lower prices

May

Recommended
15°9° at night
  • 65 mm · 12 d
  • 11 h

Busy, without the crush

June

Recommended
18°11° at night
  • 73 mm · 13 d
  • 11.4 h

Busy, without the crush

July

Recommended
19°13° at night
  • 79 mm · 15 d
  • 10.1 h

High season, book early

August

Recommended
19°13° at night
  • 82 mm · 14 d
  • 9.7 h

High season, book early

September

Recommended
17°11° at night
  • 83 mm · 13 d
  • 8.2 h

Busy, without the crush

October

Fair
14°9° at night
  • 87 mm · 14 d
  • 6.2 h

Low season, lower prices

November

Not recommended
11°6° at night
  • 88 mm · 13 d
  • 4.5 h

Low season, lower prices

December

Not recommended
9°5° at night
  • 94 mm · 15 d
  • 3.3 h

Quiet, then the holidays

Read the twelve months in detail

January. Cool: 8 °C at best, 4 °C at night. Expect 12 days of rain in the month (63 mm). Sunshine gets scarcer (4.1 h a day). Low season: fewer people, lower prices.

February. Cool: 9 °C at best, 4 °C at night. Expect 13 days of rain in the month (66 mm). Sunshine gets scarcer (5.4 h a day). Low season: fewer people, lower prices.

March. Cool: 10 °C at best, 4 °C at night. A very wet month, 80 mm of rain over 14 days. Expect 7.1 h of sunshine a day. Busy season, without the crush.

April. Cool: 12 °C at best, 6 °C at night. Expect 12 days of rain in the month (63 mm). Plenty of sunshine: 9.2 h a day on average. Low season: fewer people, lower prices.

May. Cool: 15 °C at best, 9 °C at night. Expect 12 days of rain in the month (65 mm). Plenty of sunshine: 11 h a day on average. Busy season, without the crush.

June. Mild, 18 °C in the afternoon and 11 °C early in the morning. Expect 13 days of rain in the month (73 mm). Plenty of sunshine: 11.4 h a day on average. Busy season, without the crush.

July. Mild, 19 °C in the afternoon and 13 °C early in the morning. Frequent rain: 79 mm over 15 days. Plenty of sunshine: 10.1 h a day on average. High season: book early.

August. Mild, 19 °C in the afternoon and 13 °C early in the morning. Frequent rain: 82 mm over 14 days. Plenty of sunshine: 9.7 h a day on average. High season: book early.

September. Cool: 17 °C at best, 11 °C at night. Expect 13 days of rain in the month (83 mm). Expect 8.2 h of sunshine a day. Busy season, without the crush.

October. Cool: 14 °C at best, 9 °C at night. Frequent rain: 87 mm over 14 days. Expect 6.2 h of sunshine a day. Low season: fewer people, lower prices.

November. Cool: 11 °C at best, 6 °C at night. Expect 13 days of rain in the month (88 mm). Sunshine gets scarcer (4.5 h a day). Low season: fewer people, lower prices.

December. Cool: 9 °C at best, 5 °C at night. A very wet month, 94 mm of rain over 15 days. Sunshine gets scarcer (3.3 h a day). Quiet at the start of the month, then busier as the holidays approach.

Same season, other ideas

Their best time overlaps with this one: worth comparing before you book.

Frequently asked questions

When is the best time to visit Dublin?

May to September: over these months, recorded highs range from 15 to 19 °C, with 13 days of rain a month on average (2015-2024 records, Trinity College).

Which month should you avoid in Dublin?

December: it is the wettest of the months to avoid, with 94 mm over 15 days of rain on average, according to 2015-2024 records at the reference point (Trinity College).

What is the hottest month in Dublin?

July, with 19 °C on average in the afternoon and 13 °C at night. 2015-2024 records (Trinity College).

What is the coldest month in Dublin?

January, with 8 °C at best during the day and 4 °C at night. 2015-2024 records (Trinity College).

What is the driest month in Dublin?

January: 63 mm over 12 days of rain, against 94 mm in December, the wettest month.

Which month has the most sunshine in Dublin?

June, with 11.4 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.

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Photos: Guilhem Vellut from Annecy, France / CC BY 2.0 (Wikimedia Commons)