Annual mean 11°C · wettest around December · prevailing wind SW
Warmest
17.9 °C
Coldest
7.4 °C
Wettest
44%
Windiest
7.6 m/s
Prevailing
SW
6.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Killarney over the whole year is 11°C. July is the hottest month, with highs of about 17°C; March is the coldest, with lows of about 6°C. Killarney has no sharply defined rainy season: the chance of rain on a given day runs from 22% in May, the driest month, to 39% in December, the wettest. Winds in Killarney are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 4.6 m/s (17 km/h). The prevailing wind is from the SW. The clearest skies in Killarney come in May, when the sky is typically 70% covered; July is the cloudiest month, at 77%.
Month by month Killarney climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
8°C
6°C
3°C
37%
76%
5.7 m/s
0
0
18
February
9°C
7°C
3°C
39%
76%
6.7 m/s
0
0
18
March
10°C
6°C
4°C
35%
75%
5.7 m/s
0
0
28
April
12°C
8°C
7°C
23%
72%
5.0 m/s
3
0
50
May
15°C
10°C
10°C
22%
70%
4.6 m/s
16
0
74
June
16°C
13°C
13°C
23%
74%
4.8 m/s
32
1
79
July
17°C
14°C
15°C
25%
77%
4.6 m/s
49
1
81
August
17°C
14°C
14°C
28%
75%
4.8 m/s
46
1
80
September
16°C
13°C
13°C
29%
74%
4.8 m/s
30
1
76
October
13°C
11°C
9°C
34%
74%
5.4 m/s
5
0
64
November
10°C
8°C
6°C
36%
75%
5.7 m/s
1
0
37
December
9°C
8°C
3°C
39%
77%
6.1 m/s
0
0
23
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Killarney weather by season
Year round, Killarney has days of about 8°C at their warmest in January, its coolest month, and 17°C in July, its warmest; the coolest hours of the day run from 6°C to 14°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around December and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Killarney weather in winterDecember to February
High 9°CLow 7°CRain 38%
Winter in Killarney has typical daily highs of about 9°C and lows of about 7°C, with a 38% chance of rain on a given day.
Killarney weather in springMarch to May
High 12°CLow 8°CRain 27%
Spring in Killarney has typical daily highs of about 12°C and lows of about 8°C, with a 27% chance of rain on a given day.
Killarney weather in summerJune to August
High 17°CLow 14°CRain 26%
Summer in Killarney has typical daily highs of about 17°C and lows of about 14°C, with a 26% chance of rain on a given day.
Killarney weather in autumnSeptember to November
High 13°CLow 11°CRain 33%
Autumn in Killarney has typical daily highs of about 13°C and lows of about 11°C, with a 33% chance of rain on a given day.
When is the rainy season in Killarney?
Killarney has no sharply defined rainy season: the chance of rain on a given day runs from 22% in May, the driest month, to 39% in December, the wettest.
What time of year is Killarney windiest?
Winds in Killarney are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 4.6 m/s (17 km/h). The prevailing wind is from the SW.
What is the average temperature in Killarney year round?
The average temperature in Killarney over the whole year is 11°C. July is the hottest month, with highs of about 17°C; March is the coldest, with lows of about 6°C.