Let’s be real: if you’re looking for a Dublin weather forecast 30 days out, you’re basically asking for a miracle. Or at least a very educated guess from someone who understands that the Atlantic Ocean has some serious mood swings. Dublin in late January and February is a wild ride. One minute you’re squinting at a rare bit of winter sun hitting the Liffey, and the next, you’re ducking into a pub because a "soft day" turned into a horizontal rainstorm.
I’ve seen people pack for an Arctic expedition only to find themselves sweating in 10°C humidity. Others show up in light denim and get absolutely soaked to the bone within twenty minutes of landing at DAA.
Dublin weather is famously fickle.
What’s Actually Happening Over the Next 30 Days?
Right now, as we move through late January 2026, the big story is the shift from a surprisingly mild start to the year toward something a bit more... biting. According to the latest from Met Éireann, Ireland’s national forecaster, we’re looking at an unsettled pattern for the remainder of January.
Low pressure systems are lining up in the Atlantic like they're waiting for a bus.
Expect rainfall amounts to stay above the usual averages for the rest of this week. If you’re in the city center, that means plenty of damp pavement and "misting" that defies most cheap umbrellas. Honestly, don't even bother with a flimsy umbrella; the Dublin wind will turn it into a modern art sculpture in seconds.
The Shift: Late January to Early February 2026
Something interesting is happening around the final week of January (Monday the 26th to Sunday the 1st of February). The meteorologists are seeing a signal for a cool easterly airflow.
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What does that mean for your plans?
- Temperatures will likely dip below average.
- We’re looking at daytime highs struggling to reach 5°C or 6°C.
- The nights? Proper frosty. We could see -1°C or -2°C in the suburbs.
- Higher precipitation for the East (that’s us) compared to the West.
So, while the start of the month felt like a late autumn hangover, the end of January is going to feel like actual winter. If you're heading to the 30-day horizon—the first two weeks of February—the "unsettled" theme returns. More wind, more rain, but maybe a slight creep back up toward the 8°C mark.
The 30-Day Outlook: Breaking Down the Numbers
Normally, Dublin in January and February settles into a predictable groove of 8°C days and 3°C nights. But averages are just that—averages. They don't tell you about the night you’ll spend shivering at a bus stop on D'Olier Street.
For the next month, you should plan for:
- Temperature Range: Mostly between 2°C and 9°C.
- Rain Frequency: About 15 to 18 days of the next 30 will have some form of wet stuff.
- Daylight: We're gaining about 2-3 minutes of light a day. It’s small, but by mid-February, you’ll actually notice it’s not pitch black at 4:30 PM anymore.
It's the humidity that gets you. Dublin has a temperate oceanic climate, which is fancy talk for "it feels colder than it is." 5°C in Dublin feels significantly sharper than 5°C in a dry climate like Madrid or Denver because that damp air just clings to your clothes.
Dublin Weather Forecast 30 Days: The Myths
People often think Ireland is constantly under a foot of snow in the winter. Total myth. Snow in Dublin is actually pretty rare. When it does happen—like the infamous "Beast from the East" years ago—the city basically enters a state of mild panic and stays home to eat bread.
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For the next 30 days, snow isn't the main threat. Fog is.
Met Éireann has already issued warnings for "freezing fog" this season. If you’re driving into the city from the M50 or flying in early, this is the stuff that causes delays. It’s thick, it’s eerie, and it makes the Spire look like it's disappearing into a cloud.
Is February the Worst Month?
Some say so. It’s often the coldest, or at least it feels the longest. But the signal for February 2026 suggests we might actually see some "more stable" conditions by the second week. That doesn't mean "t-shirt weather." It just means fewer Atlantic gales and maybe—just maybe—three hours of sunshine instead of two.
Pro-Level Packing for the Dublin Climate
If you are looking at a Dublin weather forecast 30 days out because you're visiting, listen closely. You need to dress like an onion. Layers are the only way to survive a day that goes from "crisp morning" to "torrential downpour" to "sunny afternoon in a heated pub."
- The Base: Thermals aren't overkill if you plan on walking the pier at Howth.
- The Middle: A solid wool sweater. It stays warm even if it gets a bit damp.
- The Shield: A windproof, waterproof shell. Not a "water-resistant" hoodie. A proper raincoat.
- The Feet: Waterproof boots. Dublin’s cobblestones in Temple Bar are slippery when wet, and puddles are deeper than they look.
I’ve seen tourists wearing those thin canvas sneakers in February. Their faces usually say everything you need to know about their life choices.
Navigating the "Soft Day"
In Dublin, we have a term: a "soft day." This isn't a forecast you'll find on a global weather app. A soft day is when it’s not exactly raining, but the air is so saturated with mist that you’re soaked within a mile.
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The next 30 days will have plenty of these.
The trick is to not let it stop you. Dubliners don't wait for the rain to stop to go out. If we did, we'd never leave the house. You just put your hood up, tuck your chin into your scarf, and keep walking toward the nearest Guinness.
Why You Can’t Trust Your Phone App
Your default phone weather app probably pulls data from a global model that doesn't quite "get" the microclimate of the Irish Sea. Dublin is tucked between the mountains and the coast. Sometimes the clouds get stuck on the Wicklow Mountains, leaving the city dry, while other times the sea breeze brings in a "haar" or mist that wasn't on the schedule.
Always check Met.ie for the most granular, local updates. They know when a rogue shower is about to ruin your walk through St. Stephen's Green.
Actionable Next Steps for Your Trip
If you’re tracking the Dublin weather forecast 30 days ahead for an upcoming visit, don't just stare at the raindrops on your screen.
- Download the Met Éireann app: It is significantly more accurate for Irish "micro-weather" than the generic weather apps.
- Book indoor backups: If your 30-day window shows a lot of "low pressure" (which means rain), plan your visits to the EPIC Museum, the Guinness Storehouse, or the National Gallery for those specific days.
- Check the "Feels Like" temp: Ignore the big number. If the app says 8°C but the "Feels Like" says 3°C, believe the 3.
- Watch the wind speeds: Anything over 40km/h means your umbrella is a liability. Bring a hat that won't blow away.
Dublin in the winter is actually quite beautiful—moody, grey, and incredibly cozy. Just don't expect the sky to play fair. Prepare for the damp, embrace the grey, and you’ll have a much better time than the person waiting for a "clear" 30-day forecast that simply isn't coming.