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Killarney Weather and Climate: A Comprehensive Guide

The climate in Killarney is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to pleasant in the cooler months. It receives a reasonable amount of rainfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Killarney, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 29°C in January. In July, the coolest month of the year, temperatures drop to a pleasant 18°C.

At night, you can expect cooler temperatures, with averages dropping to around 5°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

On average, Killarney receives a reasonable amount of rainfall, with an annual precipitation of 754 mm. Killarney can be quite wet during December, receiving approximately 114 mm of precipitation over 13 rainy days.

In contrast July, experiences much drier conditions, with 26 mm of rainfall, spread across 10 rainy days. For more details, please visit our Killarney Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Killarney

Mon   Jan 13
27°C | 17°C
E 3 m/s
3.4 mm
partly cloudy and thunder

partly cloudy and thunder

Tue   Jan 14
29°C | 17°C
SE 3 m/s
0.7 mm
partly cloudy and thunder

partly cloudy and thunder

Wed   Jan 15
31°C | 17°C
W 3 m/s
0.8 mm
partly cloudy and thunder

partly cloudy and thunder

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Killarney in Australia

During the months of April, May, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Killarney?
    January has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Killarney?
    The coldest month is July with an average maximum temperature of 18°C.
  • Which is the wettest month in Killarney?
    December tops the wettest month list with 114 mm of rainfall.
  • Which is the driest month in Killarney?
    July is the driest month with 26 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.