Cork weather in August

August in Cork: nice, a little rain, with clean air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Cork🇮🇪 Ireland · British Isles · City87
  1. 57Jan
  2. 60Feb
  3. 67Mar
  4. 76Apr
  5. 83May
  6. 89Jun
  7. 91Jul
  8. 87Aug
  9. 79Sep
  10. 69Oct
  11. 62Nov
  12. 55Dec

#3 of 12 months in Cork · #359 of 1413 destinations to visit in August · comfort 87/100 (tier A)

Days
20°C
Nights
12°C
Wet days
12
Sun
9.3 h
Humidity
81%
Daylight
15 h
Cork, Ireland
Photo: Selim Karadayı · Pexels

Traveller notes on Cork in August

Notes from nearby Dingle (126 km away)

Cork doesn't have its own notes for August yet — these are about Dingle, close enough to share the season.

Ireland-forum threads on August packing (general, but track Dingle directly) are consistent that the month is unpredictable enough to plan for both extremes: warm and sunny is possible, cold and properly wet is just as likely, sometimes within the same week. The standing kit is a genuine waterproof top layer over jeans and a fleece or rain jacket, plus a woolly hat and gloves kept in the bag regardless of the forecast. Crowds follow a separate, more predictable pattern: July and August are the busiest months in Dingle, the town rammed and parking difficult between 10am and 4pm most days. The record: 18C days feeling like 17C, 13C nights, 75mm across 15.1 days, humidity a damp 81 percent, 9.6 hours of sun, a 15.4C sea and wind averaging nearly 20 km/h - cool, breezy, and genuinely wet even by Irish-summer standards.
DinglePierAugustRegular · August · 1 month ago · about Dingle · Read more on Tripadvisor ↗

Other months in Cork

Forum posters cite average December daytime temperatures across Ireland around 8C, dropping to around 2C overnight, with the temperature rarely falling below freezing. Posters are direct that rain is a distinct possibility any time of year in Ireland but effectively a certainty in December, though posters note Cork and the wider South-West actually run drier on average than the North and East, where November tends to be the wettest month nationally. Cork locals specifically recommend waterproof, fleece-lined boots and a proper hooded waterproof jacket as the practical December uniform. Posters note frosts have become less common in recent Novembers and Decembers, and snow itself stays a low-probability event. Posters generally rate December as cold, reliably wet and short on daylight, but not requiring the heaviest winter gear given how mild Irish winters typically run.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe Irish January weather as genuinely all over the map - some years bring dreadful stretches with snow, ice and travel disruption, while others turn out magnificent with clear blue skies and mild temperatures, and posters are consistent that grey, cold and rainy is the most typical overall pattern. Posters flag a real chance of snow severe enough to disrupt travel, with major roads gritted but Ireland's many minor rural roads requiring real caution. Posters note that smaller visitor attractions around Cork often close for the season in January, typically reopening in March, though larger sites and city attractions - pubs, museums, urban landmarks - stay open and make for a solid winter city visit. Posters generally recommend Cork as a good January base precisely because its urban attractions don't depend on the weather cooperating.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗
Cork forum regulars call June genuinely unpredictable at the national level — “you could have a heatwave requiring only light clothes, or it could be wet and chilly” — but flag one regional exception: “in the south coast, April-June are the driest months,” making the Cork area a relatively decent June pick compared to the rest of the country. Typical expectations run “pleasant to warm, probably about 20 Celsius, and it may rain or may not.” Standard packing regardless of the regional edge: light trousers, t-shirts, a long-sleeved layer, a light sweater or fleece, and rainwear kept close at hand. Our record: 17.6°C days, 11.7°C nights, 12.6 rain days and a 16.3°C sea — cool with real rain frequency, a touch more unsettled than the “driest months” framing implies but consistent with genuine Irish June variability.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗
July is Ireland's warmest month and, on the forum's telling, still not a warm month — visitors report never seeing much above 24°C, against a Cork average high of 19. It is not reliably dry either: rain falls on about twelve days here, and posters are split on whether July is drier or wetter than spring. The advice never varies — layers, and a good rain jacket with a hood. One visitor's summary of a Cork July, "the weather was great, but that is not something that can be guaranteed," is the whole month in a sentence. Blarney and Killarney are busy; large stretches of the county are not.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Cork's card on the map.

Cork climate normals — August

Daytime high20°C / 68°F😎 nice
Nighttime low12°C / 54°F
Feels like (high)19°C / 66°F
Sea temperature14°C / 58°F🥶 cold sea
Rainfall70 mm / 2.7 in🌦 some rain
Rainy days12 days
Humidity81%💦 very humid
Dew point13°C / 56°F
Sunshine9.3 h/day
Daylight14.6 h
Wind19 km/h / 12 mph
Air quality (US AQI)31🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Cork in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsCork Pride, Cork on a Fork Fest, Summer holidays in Ireland(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Cork's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherCork's weather peaks June–August, best around July.

August includes Cork Pride.

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Best weatherFair weatherToughest weather

What's on in Cork in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Festival

    Cork Pride

    25 Jul – 5 Aug · usuallyCrowded

    A week of events from late July ending with the parade from Grand Parade on the first Sunday of August, when city-centre streets close for the afternoon. Source ↗

  • Festival

    Cork on a Fork Fest

    12–16 AugFood & drink festivalCrowded

    The city council's food festival runs five days of street feasts, long-table dinners and free cooking demonstrations in the English Market. Popular ticketed dinners go early. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Cork — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Cork?

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Cork in August — FAQ

Is August a good time to visit Cork?
August in Cork: nice, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Cork on SeasonMap's comfort score (87/100).
What is the weather like in Cork in August?
In August, Cork averages a daily high of 20.2°C and a low of 12.3°C, with about 69.5 mm of rain over roughly 11.9 rainy days.
What is the air quality in Cork in August?
Cork has a mean US Air Quality Index of about 31 in August.

Within 300 km: Dingle's Blasket Islands boats around 1 Apr – 30 Sep, and Newquay's Sea at its warmest around 1 Aug – 30 Sep.