Dublin Weather in August

Dublin in August sees pleasant daytime temperatures of 20°C (68°F) and nighttime lows of 13°C (55°F). Rainfall is fairly high this month at around 81 mm (3.2 in), so pack a rain jacket to stay dry.

Rainfall in Dublin in August

You can expect rain on around 16 days based on historical patterns, with 81 mm (3.2 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Dublin in August

Dublin in August is worth a visit. The temperature is perfect, with 20°C (68°F) during the day and 13°C (55°F) at night. August marks the summer season. The difference between afternoon and evening temperatures is usually noticeable. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Dublin in August

With about 157 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Dublin in August

August sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in August

At 15°C (59°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Dublin.

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

Dublin Temperature in August

Min Temperature 13°C (55°F)  

Max Temperature 20°C (68°F)  

Water Temperature 15°C (59°F)  

Chance of Rain 54%  

Precipitation 81 mm (3.2 in)  

Rainy days 16 days  

Humidity 69%  

Windspeed 4 m/s (8 knots)  

Sunshine 157 hours  

Percentage Sunshine 35%  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Dublin typically stay consistent throughout August, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 12°C (54°F).

Average temperatures in August

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

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Historical weather for Dublin in August

Browse day-by-day weather records for Dublin spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Dublin historical weather extremes in August

Based on 49 years of weather observations in Dublin between 1976 and 2025, these are the recorded extremes.

• On August 2, 1990, temperatures climbed to 29°C (84°F), marking the warmest August day on record.
• The coldest August day was on August 26, 1986, with a maximum of 12°C (54°F).
• The lowest overnight temperature recorded in August was 2°C (36°F) (August 31, 2010).

What to Wear in Dublin in August

For Dublin in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 15°C (59°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Dublin in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

More climate data for Dublin

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Dublin climate overview or explore weather in Ireland.