What time does it get dark today? Ireland sunset & twilight guide

Sunset does not mean darkness in Ireland — the time it gets dark changes by hours depending on the season. This guide explains the three stages of twilight and how to predict when it will get properly dark today, wherever you are on the island.

Sunset in Dublin today (summer): 9:52 PM ·
Minutes to full darkness after sunset: 60–100 minutes ·
Darkest month in Ireland: December ·
Hours of daylight in Dublin in December: 7 h 36 min

Four key figures show how dramatically daylight shifts across the Irish year.

How long after sunset does it get dark?

Twilight stages explained

• Civil twilight: Sun 0°–6° below horizon. Still light enough to read outdoors. (timeanddate.com, civil twilight definition)
• Nautical twilight: Sun 6°–12° below. Horizon visible, stars begin to appear. (timeanddate.com, nautical twilight definition)
• Astronomical twilight: Sun 12°–18° below. Sky fully dark for most purposes. (timeanddate.com, astronomical twilight definition)

Factors influencing darkness after sunset

• Latitude: Ireland sits at 51°–55°N, so twilight lasts longer in summer than in the tropics (timeanddate.com, latitude effects)
• Cloud cover: thick overcast can make it seem darker earlier, but also traps artificial light
• Air quality: clear, dry air allows twilight to linger longer than hazy conditions

The pattern is clear: sunset ≠ darkness. For an evening outing in Ireland, the practical “dark time” is about 90 minutes after the posted sunset.

What is 30 minutes after sunset called?

Civil twilight duration

• 30 minutes after sunset falls squarely within civil twilight in Ireland at most latitudes
• Civil twilight ends when the sun is 6° below the horizon — typically 30–40 minutes after sunset in summer (timeanddate.com, civil twilight duration)
• During civil twilight, artificial lighting is usually unnecessary for outdoor tasks

Nautical twilight vs astronomical twilight

• Nautical twilight follows civil twilight. At 30°N latitude it lasts about 40 minutes, but in Ireland (higher latitude) it can stretch to ~50 minutes (timeanddate.com, nautical twilight length)
• Astronomical twilight begins 60–90 minutes after sunset. It is the final phase before total darkness
• In Irish summer, astronomical twilight can last until nearly midnight, meaning true darkness never fully arrives for a few weeks around the solstice

The catch: knowing which twilight phase you are in helps you decide whether to bring a torch or a telescope.

What time does it get dark in Ireland at the moment?

Current sunset times in Dublin

• In mid-June, Dublin’s sunset is approximately 9:52 PM IST (WorldData, Dublin times)
• Daylight lasts 16 h 55 min (Time.now, Dublin day length)
• Full darkness in Dublin arrives around 11:00 PM under clear skies

Current sunset times in Cork

• Cork’s sunset on the same day is about 9:53 PM, similar to Dublin but slightly later due to more westerly longitude (Time.now, Cork data)
• Cork’s daylight duration is 16 h 58 min

Seasonal variations across Ireland

• Western cities like Galway and Limerick see sunset 10–15 minutes later than Dublin (Time.now, regional variation)
• In winter (December), sunset across Ireland falls between 4:10 PM (northwest) and 4:30 PM (southeast)
• The spread between earliest and latest sunset on a given day is about 22 minutes, from Wexford (earliest) to Letterkenny (latest) (Time.now, city comparison)

The implication: if you’re planning an evening activity, check a location-specific source — a 22-minute difference can mean the difference between dusk and usable light.

What is the darkest month in Ireland?

Daylight hours in December

• Dublin sees only 7 h 36 min of daylight in December (WorldData, December daylight)
• Cork fares slightly better with 7 h 50 min, thanks to its more southerly latitude
• In the north of the island (Letterkenny), December daylight drops to about 7 h 15 min

Longest night of the year

• The winter solstice (around December 21) marks the shortest day and longest night
• Sunset on the solstice occurs as early as 4:15 PM in some areas, with darkness settling by 5:30 PM
• After the solstice, daylight slowly increases by 1–2 minutes per day

Why this matters: December in Ireland means only about 7.5 hours of daylight. For residents and visitors, that shifts everything — work schedules, outdoor recreation, even mood. Plan for darkness by 5 PM, and consider a daylight lamp for morning routines.

In which country does the Sun never go down for 76 days?

Midnight sun in Norway

• Norway experiences the midnight sun north of the Arctic Circle for up to 76 days (mid-May to late July) (timeanddate.com, midnight sun phenomenon)
• The longest continuous period occurs at Svalbard, where the sun doesn’t set from April to August
• During this period, residents use blackout curtains to maintain sleep cycles

Other countries with polar day

• Canada, Russia, Greenland, Iceland, and Finland also have regions with 24-hour daylight
• The effect is most dramatic at the North Pole itself, where the sun circles the sky for six months
• In contrast, Ireland never experiences polar day — even in June, there are still 6–7 hours of “nautical twilight” overnight

The pattern: Norway’s 76-day midnight sun is the most well-known example, but several Arctic countries share the phenomenon. For Irish readers dreaming of endless daylight, a trip to Svalbard in July is the ultimate contrast to our short winter days.

For anyone in Ireland asking “what time does it get dark today”, the answer is never a single number. Between sunset and true darkness lies an hour or more of graded twilight, shaped by latitude, season, and weather. The lesson: check a local sunset time, add 90 minutes, and you’ll have a reliable guide for outdoor plans — or for knowing when to turn on the lights.