Temperature
Cold by day, cold at night.
49°Ftypical December high
Typical range
December climate
December in Killarney
Ireland · Europe
Cold days.
Some tradeoffs
Daytime high
49°F
Lows around 41°F
Rain
Frequent rain
Sun
4 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 16 wet days this month.
52%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
3.8 hDecember sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryDecember Heat feel
Easy airWarm airHumid air
Hourly temperature pattern
In December, afternoons feel about 39° and nights feel near 36°.
Very coldColdCoolNight hours
Clear sky
Overcast skies this month.
20%December Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in December.
9 mphDecember Light breeze
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 46°F, easing to about 44°F in early evening.
Avg temp Typical range
Morning44°F
Rain26%
Cloud81%
Humid airLow
Sun intensityMinimal
Midday47°F
Rain33%
Cloud78%
Humid airLow
Sun intensityMinimal
Late afternoon46°F
Rain27%
Cloud77%
Humid airLow
Sun intensityMinimal
Early evening44°F
Rain24%
Cloud79%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 47 | 37 | 4.1 | 13 | 4.4 | 90 |
| Feb | 50 | 41 | 5.2 | 16 | 5.8 | 88 |
| Mar | 52 | 40 | 4.7 | 16 | 7.7 | 85 |
| Apr | 56 | 43 | 2.9 | 14 | 9.9 | 82 |
| May | 61 | 47 | 3.7 | 14 | 10.8 | 82 |
| Jun | 64 | 51 | 3.2 | 15 | 11.1 | 82 |
| Jul | 67 | 55 | 3.7 | 15 | 10.2 | 85 |
| Aug | 67 | 55 | 3.1 | 13 | 9.4 | 86 |
| Sep | 63 | 51 | 4.9 | 16 | 7.9 | 87 |
| Oct | 58 | 49 | 6.5 | 19 | 6.1 | 89 |
| Nov | 53 | 44 | 4.8 | 18 | 4.8 | 91 |
| Dec | 49 | 41 | 4.8 | 16 | 3.8 | 91 |
Similar climates
Similar
Similar climateAmsterdamNetherlandsSimilar climateLondonUnited KingdomSimilar climateDublinIrelandSimilar climateChamonixFrance
Want a side-by-side climate view? Compare Killarney with Amsterdam.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology