Ulster

Issued at: 22 December 2025 05:30

TODAY - Monday 22nd December

Cloudy today with patchy rain and drizzle moving westwards. Overnight mist and fog will be slow to clear, lingering for much of the day in places. It'll become drier later this evening, with a few clearer spells developing. Highest temperatures of 7 to 10 degrees in mostly light easterly or variable breezes.

TONIGHT

Staying generally cloudy tonight with outbreaks of rain and drizzle gradually clearing northwestwards early on. Limited clear spells will follow along with isolated patches of light rain and drizzle. Lowest temperatures of 4 to 7 degrees with patches of mist and fog forming in mostly light easterly breezes.

Solar UV Index

Low.

UV Index

TOMORROW - Tuesday 23rd December

A mostly cloudy day tomorrow, Tuesday, and largely dry with just some patchy light rain and drizzle at times. Overnight mist and fog will be slow to clear in the morning with limited bright spells developing through the day. Highest temperatures of 7 to 10 degrees in light northeasterly breezes.

National Outlook

Overview: High pressure is building bringing drier and more settled weather.

Tuesday night: Mostly cloudy and dry with just isolated patches of light rain or drizzle. Lowest temperatures of 4 to 7 degrees in light, occasionally moderate, northeasterly breezes with isolated patches of mist and fog possibly forming.

Christmas Eve (Wednesday): Cloudy and dry for most with a few light showers or spots of drizzle, and just limited bright spells developing. Highest temperatures of 6 to 9 degrees with light to moderate easterly winds, fresh at times near exposed coasts.

Christmas Eve (Wednesday) night: Largely dry with a mix of cloud and clear spells. Lowest temperatures of -1 to +4 degrees in light, occasionally moderate, easterly breezes with frost likely to form.

Christmas Day (Thursday): Dry for most with sunny spells and just a few spots of light rain and drizzle possible. Highest temperatures of 3 to 7 degrees with light to moderate easterly breezes, fresher at times near eastern and southern coasts.

St. Stephen's Day (Friday): Another largely dry day with variable amounts of cloud and sunny spells. Highest temperatures of 3 to 7 degrees with light, occasionally moderate, northeasterly breezes.

Further outlook: High pressure will continue to dominate for the weekend with mostly dry conditions and highest daytime temperatures generally ranging between 4 and 8 degrees.