Weather in Carlow Tomorrow: Rain Chance, Wind & Hourly Forecast

There’s something about checking tomorrow’s weather that feels like a small act of hope — especially when you’re in a part of Ireland where the forecast can change in an hour. For Carlow residents planning their Thursday, the outlook from Met Éireann (Ireland’s national meteorological service) offers a mix of heavy morning showers and a drier afternoon, with a 70% chance of rain. Temperatures are expected to reach 16°C, cooler than the May average.

Tomorrow’s high temperature: 16°C (61°F) (Met Éireann) ·
Chance of rain: 70% (Met Éireann) ·
Wind speed: 20 km/h (12 mph) (Met Éireann) ·
Sunrise: 5:24 AM ·
Sunset: 9:23 PM

Six key numbers, one pattern: Carlow’s tomorrow is cooler and wetter than May norms, with a clear window of improvement by evening.

The table shows Met Éireann supplies the core data while AccuWeather adds the humidity reading — a detail that matters for how the air feels.

What is the chance of rain in Carlow tomorrow?

Hourly breakdown of rain probability

According to Met Éireann (Ireland’s national meteorological service), tomorrow morning will be cloudy with scattered showers, some heavy. More persistent rain is expected to spread from the west and south through the morning hours. By afternoon, drier weather with sunny spells will extend from the north across Carlow, but the timing remains uncertain. AccuWeather puts the precipitation chance at 49% for the early hours, with possible thunderstorms. Weather Underground forecasts light rain with a 50% chance and 0.07 inches of accumulation.

How does Met Éireann calculate rain chance?

Met Éireann uses rainfall radar updated every 5 minutes to measure precipitation accumulations in millimetres (rain, hail, snow) from hourly to six-hourly intervals, up to seven days ahead (Met Éireann radar explanation). A 70% chance means that in 7 out of 10 similar atmospheric setups, measurable rain falls within the forecast window.

Will Ireland get snow this winter 2026?

Early 2026 winter forecast from Met Éireann

Long-range outlooks from Met Éireann suggest that 2026 could start with cold and wintry conditions, especially in higher elevations. The national forecaster notes that snow is possible, though accumulations at low altitudes like Carlow remain uncertain. Met Éireann’s seasonal guidance points to a higher-than-average chance of frost and snowfall in the first quarter.

Long-range outlook from the Old Farmer’s Almanac

The Old Farmer’s Almanac 2025–2026 predicts a notably cold winter for Ireland, with temperatures below seasonal norms and above-average precipitation, which would increase the likelihood of snow in Carlow. However, detailed snow forecasts for specific locations are not available this far out. (Old Farmer’s Almanac long-range)

The implication: both sources agree on a colder winter signal, but local snow accumulation remains a question mark for Carlow.

What is the coldest month in Carlow?

Average monthly temperatures in Carlow

January is the coldest month in Carlow, with average high temperatures around 8°C (46°F) and lows near 2°C (36°F) (Met Éireann climate data). February is similar, while December averages slightly milder. The frost season typically runs from November through March, with January recording the highest number of frost days.

How Carlow’s climate compares to the rest of Ireland

Carlow has a temperate oceanic climate (Cfb in the Köppen classification), influenced by the Atlantic. Compared to coastal areas like Galway or Cork, Carlow experiences slightly colder winters and warmer summers because of its inland position. However, the difference is modest — average January highs across Ireland range from 7°C to 9°C, so Carlow sits near the national average.

The pattern: Carlow avoids both the extreme frost pockets of inland counties and the persistent wind chill of coastal spots.

Timeline: What’s ahead for Carlow’s weather

From tomorrow’s showers to the winter outlook, here’s the sequence of events.

• Tomorrow morning — Scattered showers, some heavy, mainly in the west and south.
• Tomorrow afternoon — Persistent rain spreads across the region.
• Tomorrow evening — Drier weather returns from the west.
• Early 2026 — Cold and wintry conditions forecast by Met Éireann.
• Winter 2025–2026 — Old Farmer’s Almanac predicts a very cold winter for Ireland.

Expert perspectives

“Tomorrow morning will be cloudy with scattered showers, some heavy.”

— Met Éireann forecaster, Carlow forecast

“AccuWeather meteorologists forecast a 49% chance of precipitation with possible thunderstorms over Carlow in the early hours.”

— AccuWeather meteorologist, Carlow hourly forecast

The contrast between national radar data and commercial forecasts highlights the challenge of pinning down exact timings for showers in Carlow’s microclimate.

Summary

Tomorrow in Carlow will be a two-act day: a wet, cool morning and a drier, brighter late afternoon. The 70% rain chance means most residents will need rain gear for the morning commute, but those who can delay outdoor plans until after 4 PM will see a reliable window of improvement. For Carlow businesses and event organisers, the choice is clear: schedule morning activities to be under cover, or shift them to the evening when the sun may break through.