With a population of around 6,600, Newcastle West sits in Munster, Ireland. The city operates in the GMT/IST time zone.
In 2025, Newcastle West recorded an average annual temperature of 51°F. The hottest temperatures reached 81°F in July; the coolest were 21°F in January. Total precipitation for the year was 55 inches, with the wettest month being October. Snowfall for the year totaled approximately 7 inches.
View current conditions and forecast for Newcastle West · More cities in Munster