World Resorts Ireland Killarney Weather

Killarney weather in December

Weather in Killarney: December

Average day temperature: 47.0°F
Average night temperature: 42.5°F
Sea water temperature: 50.1°F
Number of sunny days: 2 days
Day length: 7.7 - 8.1 hours
Number of rainy days: 10 days
Precipitation totals: 5.0 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
9
18
27
36
45
54
63
72
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 53°F. At the same time the lowest night temperature was 30°F. Day and night temperature averages during December were 47.8°F and 43.3°F.

Sea water temperature in Killarney in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
44
46
48
50
52
54
56
58

The average sea water temperature in December of 2024 was 50.8°F. The highest and lowest sea temperatures during the month were 52.2°F and 49.3°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
6%
16%
77%

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.5
2.3
3.1
3.9
4.6
5.4
4.3
3.3
2.9
2.9
2.4
2.9
3.1
2.7
4.3
4.1
3.8
4.5
4.3
3.3
2.9
2.9
2.4
2.9
3.1
2.7
4.3
4.1
3.8

Precipitation total value in Killarney in December is 4.5 in. Other months of the year show relatively similar values.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.0
4.0
6.1
8.1
10.1
12.1
14.1
9.2
8.2
7.8
7.7
7.1
7.7
7.7
8.9
9.8
11.8
9.4
9.8
9.2
8.2
7.8
7.7
7.1
7.7
7.7
8.9
9.8
11.8
9.4

The average wind speed value in December is 9.8 mph It makes December one of the most windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.0
2.0
3.0
4.0
5.0
5.9
6.9
7.9
2.2
3.1
4.3
5.1
4.7
5.8
5.2
4.8
3.4
2.2
2.8
2.0
2.2
3.1
4.3
5.1
4.7
5.8
5.2
4.8
3.4
2.2
2.8

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.0.

Best time for vacation in Killarney

Sunniest months:
March 4 days
April 4 days
January 3 days
Warmest months:
July 64.5 °F
August 63.8 °F
June 62.0 °F
Warmest sea temp:
August 61.0 °F
July 60.5 °F
September 59.0 °F
Coldest months:
January 45.5 °F
December 47.0 °F
February 47.1 °F
Rainiest months:
December 10 days
November 9 days
January 9 days
Windiest months:
February 12.0 mph
December 11.3 mph
January 10.3 mph

Killarney on a weather map

Leaflet | Tiles © Esri
Places in Ireland:
Name
°F
+45°F
+50°F
+48°F
+48°F
24 Hours Forecast
Killarney
Local time: 16:21
February 18, tuesday
1800
46°F
NW
20 mph
2100
48°F
NW
19 mph
February 19, wednesday
0000
50°F
N
14 mph
0300
48°F
N
5 mph
0600
39°F
N
6 mph
0900
45°F
N
6 mph
1200
50°F
N
14 mph
1500
48°F
N
11 mph
Units of measurement: °C / °F