Dundalk weather in August 2025

Expect 66°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Dundalk in August. Check more long-term weather averages for Dundalk in August before you book your next holiday to Ireland in 2025/2026.

  • 66°F maximum daytime temperature in August in Dundalk66
    66°F max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in August in Dundalk17
    17 days with some rainfall
  • 52°F minimum night-time temperature in August in Dundalk52
    52°F min night temperature
  • 15 hours of daylight per day in August in Dundalk15
    15 hours of daylight per day
  • No heat & humidity in August in Dundalk0
    No heat & humidity
  • 2.8 inches monthly rainfall in August in Dundalk2.8
    2.8 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Dundalk5
    5 (Moderate) UV index
  • 59°F sea temperature in August in Dundalk59
    59°F sea temperature

More about Dundalk

Dundalk by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Spabreaks.com: Short spa break deals

  • Book a 2 or 3 night spa break for couples
  • Enjoy access to the gym, pool & restaurant
  • Stays can include afternoon tea & breakfast
Go to Spabreaks.com deal >>

View all Spabreaks.com offers

The August weather guide for Ireland (Dundalk) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about Ireland

How hot is it in Dundalk in August?

Daytime temperatures usually reach 66°F in Dundalk in August, falling to 52°F at night.

How sunny is it in Dundalk in August?

There are normally 5 hours of bright sunshine each day in Dundalk in August - that's 31% of daylight hours.

How warm is the sea around Dundalk in August?

The average sea temperature around Dundalk in August is 59°F.

Does it rain in Dundalk in August?

There are usually 17 days with some rain in Dundalk in August and the average monthly rainfall is 2.8 inches.

Dundalk August sunrise & sunset times

Browse the sunrise and sunset times for Dundalk in August 2025. Select a month to view Dundalk sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:39 20:23
Saturday, 16th August 2025 05:06 19:53
Sunday, 31st August 2025 05:32 19:18

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^