Is it raining now in Armagh?
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Last updated: 20:00, 5 Oct 2026
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Rain in Armagh: What You Need to Know
Armagh stands on a low hill in the heart of Northern Ireland, crowned by two cathedrals that give the city its skyline, with the Mall's open parkland below and Navan Fort close by. Atlantic fronts reach Armagh after crossing the Sperrins and the hills to the west, arriving here somewhat weakened but still frequent. An Armagh rain radar is built for exactly this moment: hyperlocal radar tracks the shower's edge as it moves past specific streets.
Rain arrives from the west across the Atlantic and the Irish Sea, and it meets high ground on every side of the main towns. Orographic lift over the Antrim Hills and the Sperrins turns light rain into heavy rain, while sheltered valleys in the lee of the hills can stay drier. Armagh's hill gives the cathedrals a slight edge over the surrounding lowland, so a band that soaks the Mall and the flatter ground nearby can leave the hilltop streets around the cathedrals a little drier for a few minutes longer.
For anyone in Armagh, Northern Ireland, RainViewer shows Met Office radar data live, refreshed with every new scan roughly every 5 minutes. The live map shows whether a shower has already crossed the hills to the west or is still building over the Armagh countryside.
Rain by Season in Armagh
Autumn and winter frontal season (September to January)
Between September and January, named storms and repeated fronts bring rain and strong wind in close succession. Rivers and loughs climb as the ground stays saturated for weeks. Coastal roads, ferry routes and low-lying streets are usually the first places affected. Named storms and repeated fronts bring rain and wind to Armagh, and rivers and loughs across the county rise on saturated ground through the darkest months.
Transition months (February to April)
Showers, hail and sleet alternate as the last fronts weaken in spring, and walks on the Mall and around Navan Fort are the plans most often caught out. February to April brings the least predictable weather of the year, as showers, hail and sleet trade places without much warning. The cells involved are small and fast-moving, which limits how far ahead forecasts can see. Hill walkers and spring sports fixtures face the greatest exposure to this.
Summer season (May to August)
Rain is less frequent in summer, but Atlantic showers still cross the county, and thunderstorms can form inland on warm afternoons. Rain is less frequent, but Atlantic showers still cross the province, and thunderstorms can form inland on warm afternoons. Festivals, coastal drives and outdoor events depend on short dry gaps.
Why You Need a Rain Radar in Armagh
Walkers on the Mall
Armagh's Mall, a large open park in the centre of the city, has little shelter across its open grass. Watch the shower approach on the radar and decide whether to start the walk or wait.
Visitors to the two cathedrals
The two cathedral hills in Armagh draw visitors on foot across open streets and grounds. Check the radar to see whether a shower will pass before crossing between them.
Visitors to Navan Fort
Navan Fort, just outside the city, is an open hilltop site with no real shelter. See whether the cell will pass before setting out to visit.
Commuters on the A3 and A28
The A3 towards Portadown and the A28 towards Newry slow in heavy rain. Check the radar and decide whether to leave now or wait for the gap.
RainViewer Radar Coverage in Armagh
RainViewer shows UK precipitation using data from the Met Office, the national weather service, which runs a network of C-band dual-polarization weather radars. The Met Office network also feeds the European OPERA composite, and the RainViewer map refreshes with each new scan, about every 5 minutes. From Armagh the map also covers Portadown, Newry and Craigavon.
Armagh Rain Radar: Frequently Asked Questions
- How does rain affect a visit to the two cathedrals in Armagh?
Armagh's two cathedrals sit on hills at either side of the city, and the walk between them crosses open streets with little cover, so a shower can soak visitors moving from one to the other. Many check the radar before setting out rather than judge by the sky overhead. RainViewer shows the shower crossing the city.
- Does rain affect the A3 near Armagh?
Yes, the A3 towards Portadown and the A28 towards Newry slow in heavy rain, and spray builds where traffic bunches at the junctions. Check the radar before setting off. The radar map shows whether the shower is still on its way or already gone.
- Does Armagh flood when it rains?
Armagh has surface flooding on low roads after intense rain, and the streams and rivers of the county can rise on saturated ground after several days of wet weather. Avoid low-lying roads in the countryside around the city. RainViewer shows whether a heavier band is on its way in advance.
- When is the best time to visit Armagh to avoid rain?
May to September is the best window to visit Armagh, with the Mall, the cathedrals and Navan Fort at their best. Spring showers can still cross the county with little warning. Check the radar early on and plan around whatever dry window it shows.
- Why can it rain on the Mall while the cathedral hill stays dry around Armagh?
The Mall sits on the flatter ground below Armagh's hill, so it can be catching the heaviest of a passing shower while the cathedral hill above stays a little drier until the band climbs the slope. Live radar shows the edge of each cell, so checking the Mall and the cathedral hill separately shows which side of the line you are on.
- How often does the Armagh radar map update?
The Armagh radar map updates about every 5 minutes, in line with the Met Office's own scan cycle, rather than on a fixed forecast schedule. Radar coverage over Northern Ireland comes from the Met Office network, using dual-polarization to tell rain apart from hail and sleet as it falls across the hills and coasts. That hyperlocal pace is fast enough to catch a shower moving across town in real time.
- What can I do with RainViewer in Armagh beyond checking current rain?
Set a rain alert on the Mall or the cathedral hill and RainViewer warns you before rain arrives. That lets you time a walk or a visit. The 2-hour forecast in 5-minute slices shows the next gap, and saved locations track Navan Fort and Portadown together.
Track Rain in Armagh in Real Time
A walk on the Mall and a visit to the cathedrals both depend on a dry gap, and RainViewer shows the next one.
Showers come in off the Atlantic in quick succession, so timing shifts faster than a forecast updates.
The forecast says rain in Armagh this afternoon. RainViewer's live hyperlocal radar shows the cell still over the Mall with the cathedral hill dry, which decides whether the visit starts now.
Track rain in Armagh — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
Two hours of 5-minute steps let you time the walk on the Mall to the minute.
Rain alerts before arrival
Put an alert on the Mall. RainViewer warns you minutes ahead, which settles whether to cross to the other cathedral now or wait.
Direction arrows on the map
Rain reaches Armagh most often from the west and south-west, off the Atlantic, so the arrows tell you at a glance whether a cell is heading your way.
48 hours of radar history
The 48-hour history shows what fell on the hills west of the city, which is the fastest way to judge ground conditions.
Multiple locations
Save the Mall, Navan Fort and Portadown and check all three in one look.
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