Measurements:
°C
°F
Killarney
56°F
W 12 mph
Feels like: 52°F
Precip: 0%
World Resorts Ireland Killarney Weather January Weather in Killarney

Killarney Weather: January

Average Day Temperature: 45.0°F
Average Night Temperature: 38.8°F
Sea Water Temperature: 48.0°F
Number of Sunny Days: 3 days
Sunshine Hours: 7.8 - 9.1 hours
Number of Rainy Days: 9 days
Precipitation Totals: 4.4 in

Air Temperature in January, °F

Select Year: 2025 2024 2023
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 in January 2025 was 54°F. The lowest night temperature was 19°F. The average values for day and night temperatures during January were 42.6°F и 36.0°F respectivly.

Killarney Water Sea Temperature in January, °F

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
43
45
47
49
51
53
55

The average sea surface temperature in January 2025 for Killarney was 48.0°F. The maximum and minimum values were 47.2°F and 49.2°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
10%
23%
68%

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation Totals in January, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.9
1.7
2.6
3.4
4.3
5.2
6.0

Precipitation total in January for Killarney is 4.4 in. It makes january one of the most rainy months of the year.

Wind Speed in January, 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
14.2

The average wind speed in January is 10.3 mph. It makes January one of the most windy months of the year for Killarney.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.9
1.8
2.8
3.7
4.6
5.5
6.5

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Killarney in January is 2.5 hours.

Best Time to Visit Killarney
The most sunny months:
March 4 days
April 4 days
January 3 days
The most warm months:
July 66.1 °F
August 65.4 °F
June 63.3 °F
Warmest sea temperature:
August 62.2 °F
July 61.7 °F
September 60.0 °F
The most cold months:
January 45.0 °F
December 46.7 °F
February 46.8 °F
The most rainy months:
December 10 days
November 9 days
January 9 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph

Killarney on the Weather Map

Ireland Resorts:
NAME
Cork +52
Dublin +48
Killarney +56
Limerick +54
24 Hours Weather Forecast
Killarney
Local time: 17:36
05 apr, saturday
1800 56°F
W
12 mph
2100 52°F
W
11 mph
06 apr, sunday
0000 50°F
W
12 mph
0300 50°F
W
9 mph
0600 48°F
W
9 mph
0900 52°F
W
7 mph
1200 58°F
NW
4 mph
1500 60°F
N
2 mph