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Killarney weather by month
Check out Killarney weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Killarney (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 8 |
8 |
10 |
12 |
14 |
17 |
18 |
18 |
16 |
14 |
10 |
9 |
| Min temperature (night-time) | 3 |
3 |
4 |
5 |
7 |
10 |
11 |
11 |
10 |
8 |
5 |
4 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Killarney
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 8 |
10 |
12 |
14 |
16 |
17 |
16 |
15 |
13 |
11 |
9 |
8 |
| UV Index (Maximum) | 1 |
1 |
2 |
4 |
5 |
6 |
6 |
5 |
4 |
2 |
1 |
0 |
Rainfall in Killarney
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 23 |
19 |
20 |
16 |
18 |
17 |
16 |
20 |
19 |
22 |
22 |
23 |
| Average monthly rainfall (mm) | 160 |
118 |
113 |
77 |
84 |
74 |
77 |
97 |
117 |
140 |
149 |
166 |
More about Killarney
Killarney by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
The climate guide for Ireland (Killarney) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Killarney?
Killarney has a temperate climate with warm summers and some rainfall in all months.
Killarney weather in January
Expect daytime maximum temperatures of 8°C in Killarney, Ireland in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 23 days with some rainfall and typically 160 mm of rainfall in the month.
- 8°C max day temperature
8 - 2 hours of sunshine per day
- 23 days with some rainfall
23 - 3°C min night temperature
3 - 8 hours of daylight per day
8 - No heat & humidity
0 - 160 mm of monthly rainfall
160 - 1 (Low) UV index
1
Killarney weather in February
Expect daytime maximum temperatures of 8°C in Killarney, Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 19 days with some rainfall and typically 118 mm of rainfall in the month.
- 8°C max day temperature
8 - 2 hours of sunshine per day
- 19 days with some rainfall
19 - 3°C min night temperature
3 - 10 hours of daylight per day
10 - No heat & humidity
0 - 118 mm of monthly rainfall
118 - 1 (Low) UV index
1
Killarney weather in March
Expect daytime maximum temperatures of 10°C in Killarney, Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 20 days with some rainfall and typically 113 mm of rainfall in the month.
- 10°C max day temperature
10 - 3 hours of sunshine per day
- 20 days with some rainfall
20 - 4°C min night temperature
4 - 12 hours of daylight per day
12 - No heat & humidity
0 - 113 mm of monthly rainfall
113 - 2 (Low) UV index
2
Killarney weather in April
Expect daytime maximum temperatures of 12°C in Killarney, Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 77 mm of rainfall in the month.
- 12°C max day temperature
12 - 5 hours of sunshine per day
- 16 days with some rainfall
16 - 5°C min night temperature
5 - 14 hours of daylight per day
14 - No heat & humidity
0 - 77 mm of monthly rainfall
77 - 4 (Moderate) UV index
4
Killarney weather in May
Expect daytime maximum temperatures of 14°C in Killarney, Ireland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 84 mm of rainfall in the month.
- 14°C max day temperature
14 - 6 hours of sunshine per day
- 18 days with some rainfall
18 - 7°C min night temperature
7 - 16 hours of daylight per day
16 - No heat & humidity
0 - 84 mm of monthly rainfall
84 - 5 (Moderate) UV index
5
Killarney weather in June
Expect daytime maximum temperatures of 17°C in Killarney, Ireland in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 74 mm of rainfall in the month.
- 17°C max day temperature
17 - 5 hours of sunshine per day
- 17 days with some rainfall
17 - 10°C min night temperature
10 - 17 hours of daylight per day
17 - No heat & humidity
0 - 74 mm of monthly rainfall
74 - 6 (High) UV index
6
Killarney weather in July
Expect daytime maximum temperatures of 18°C in Killarney, Ireland in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 77 mm of rainfall in the month.
- 18°C max day temperature
18 - 5 hours of sunshine per day
- 16 days with some rainfall
16 - 11°C min night temperature
11 - 16 hours of daylight per day
16 - No heat & humidity
0 - 77 mm of monthly rainfall
77 - 6 (High) UV index
6
Killarney weather in August
Expect daytime maximum temperatures of 18°C in Killarney, Ireland in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 97 mm of rainfall in the month.
- 18°C max day temperature
18 - 5 hours of sunshine per day
- 20 days with some rainfall
20 - 11°C min night temperature
11 - 15 hours of daylight per day
15 - No heat & humidity
0 - 97 mm of monthly rainfall
97 - 5 (Moderate) UV index
5
Killarney weather in September
Expect daytime maximum temperatures of 16°C in Killarney, Ireland in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 19 days with some rainfall and typically 117 mm of rainfall in the month.
- 16°C max day temperature
16 - 4 hours of sunshine per day
- 19 days with some rainfall
19 - 10°C min night temperature
10 - 13 hours of daylight per day
13 - No heat & humidity
0 - 117 mm of monthly rainfall
117 - 4 (Moderate) UV index
4
Killarney weather in October
Expect daytime maximum temperatures of 14°C in Killarney, Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 22 days with some rainfall and typically 140 mm of rainfall in the month.
- 14°C max day temperature
14 - 3 hours of sunshine per day
- 22 days with some rainfall
22 - 8°C min night temperature
8 - 11 hours of daylight per day
11 - No heat & humidity
0 - 140 mm of monthly rainfall
140 - 2 (Low) UV index
2
Killarney weather in November
Expect daytime maximum temperatures of 10°C in Killarney, Ireland in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 22 days with some rainfall and typically 149 mm of rainfall in the month.
- 10°C max day temperature
10 - 2 hours of sunshine per day
- 22 days with some rainfall
22 - 5°C min night temperature
5 - 9 hours of daylight per day
9 - No heat & humidity
0 - 149 mm of monthly rainfall
149 - 1 (Low) UV index
1
Killarney weather in December
Expect daytime maximum temperatures of 9°C in Killarney, Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 23 days with some rainfall and typically 166 mm of rainfall in the month.
- 9°C max day temperature
9 - 1 hour of sunshine per day
- 23 days with some rainfall
23 - 4°C min night temperature
4 - 8 hours of daylight per day
8 - No heat & humidity
0 - 166 mm of monthly rainfall
166 - No UV (Maximum) Index UV index
0
More about Killarney
Killarney by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
- Explore latest offers on Fred Olsen Cruises in 2026/2027
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- Filter offers by price, destination, ship & departure point
The climate guide for Ireland (Killarney) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Compare Killarney weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Killarney, County Kerry, Ireland and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
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