August weather forecast
Dublin, Ireland

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The illuminated Ha Penny Bridge reflected in the water below, in Dublin, Ireland
The illuminated Ha Penny Bridge reflected in the water below, in Dublin, Ireland

Weather in August

August continues the reign of summer in Dublin, offering a mild weather and a pleasant temperature spectrum. While the average high temperature slightly drops to 19.6°C (67.3°F), the radiance of summer remains undisturbed. Evening strolls along the sea coast become even more inviting as the sea temperature reaches a delightful high. While rainfall becomes a frequent visitor, it rarely militates against the cheerful summer vibe. Amid the greenery brightened by sunshine, the city of Dublin oozes an inescapable charm during August.

Temperature

Dublin observes an average high-temperature of a refreshing 19.6°C (67.3°F) in August, barely different from 20.2°C (68.4°F) in July. August brings with it a nighttime average temperature of 13.3°C (55.9°F) in Dublin, Ireland.

Rainfall

In August, the rain falls for 10 days. Throughout August, 65mm (2.56") of precipitation is accumulated. Throughout the year, there are 128 rainfall days, and 714mm (28.11") of precipitation is accumulated.

Sea temperature

August is the month with the warmest seawater in Dublin, with an average sea temperature of 14.9°C (58.8°F).
Note: Swimming in 14.9°C (58.8°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day in August is 14h and 44min.
On the first day of the month, sunrise is at 5:42 am and sunset at 9:20 pm. On the last day of August, sunrise is at 6:33 am and sunset at 8:16 pm IST.

Sunshine

In August, the average sunshine in Dublin, Ireland, is 5.1h.

UV index

The average daily maximum UV index in August in Dublin is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 5 in August translates into these instructions:
Act with care - The suggestion to avoid sunburn is emphasized. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What are the temperatures in Dublin in August?

The high-temperature, in August, in Dublin, is 19.6°C (67.3°F), while the low-temperature averages to 13.3°C (55.9°F).

How much does it rain in Dublin in August?

In Dublin, in August, during 10 rainfall days, 65mm (2.56") of precipitation is typically accumulated.

When is the sea warmest in Dublin?

The month with the warmest seawater in Dublin, Ireland, is August, with an average sea temperature of 14.9°C (58.8°F).

What is the water temperature in August in Dublin?

In August, the average sea temperature is 14.9°C (58.8°F). Swimming in 14.9°C (58.8°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in August in Dublin?

In August, the average day length in Dublin, Ireland, is 14h and 44min.

When is the sunrise / sunset in August in Dublin?

On the first day of August, sunrise is at 5:42 am and sunset at 9:20 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:16 pm IST.

How long on average sun shines in August in Dublin?

In Dublin, Ireland, the average sunshine duration in August is 5.1h.

What is the UV index reading in August in Dublin?

In Dublin, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Dublin, Ireland

Average temperature in August - Dublin, Ireland
  • Average high temperature in August: 19.6°C

The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in August: 13.3°C

The month with the highest average low temperature is July (13.5°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).

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Average rainfall in August
Dublin, Ireland

Average rainfall in August - Dublin, Ireland
  • Average rainfall in August: 65.3mm

The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the least rainfall) is February (46.1mm).

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Average rainfall days in August
Dublin, Ireland

Average rainfall days in August - Dublin, Ireland
  • Average rainfall days in August: 10 days

The months with the highest number of rainy days are January, October and December (12 days).
The months with the least rainy days are June and September (9 days).

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Average sea temperature in August
Dublin, Ireland

Average sea temperature in August - Dublin, Ireland
  • Average sea temperature in August: 14.9°C

The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).

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Average daylight in August /
Average sunshine in August
Dublin, Ireland

Average daylight in August / Average sunshine in August - Dublin, Ireland
  • Average daylight in August: 14h and 4min

The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).

  • Average sunshine in August: 5h and 1min

The month with the most sunshine is May (Average sunshine: 6h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

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Average UV index in August
Dublin, Ireland

Average UV index in August - Dublin, Ireland
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).

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Dublin, Ireland

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