Fethard on Sea Temperature by Month

Fethard on Sea in Wexford County, Ireland sees moderate seasonal temperature shifts, with daytime highs between 10°C (50°F) in February and 18°C (64°F) in August, averaging 14°C (57°F) annually. Explore the full monthly breakdown below.

The climate in Fethard on Sea experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 14°C (57°F) in August to 6°C (43°F) in February.

The chart below illustrates the average maximum day and minimum night temperatures in Fethard on Sea by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 190 hours of sunshine.

The chart below shows the average temperature throughout the year:

Fethard on Sea's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Fethard on Sea, February is the coolest month, with average highs of 10°C (50°F) and humidity around 79%, considered high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Fethard on Sea this rarely lasts long on the ground.

For more on Fethard on Sea's weather, including monthly rainfall, sunshine hours, and humidity, visit our Fethard on Sea climate page.