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Cavan weather by month
Check out Cavan weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Cavan (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 7 |
7 |
9 |
12 |
15 |
18 |
19 |
19 |
16 |
13 |
9 |
8 |
| Min temperature (night-time) | 1 |
1 |
2 |
3 |
6 |
9 |
10 |
10 |
8 |
6 |
3 |
2 |
| 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 Cavan
| 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 |
10 |
9 |
7 |
| UV Index (Maximum) | 0 |
1 |
2 |
4 |
5 |
6 |
6 |
5 |
4 |
2 |
1 |
0 |
Rainfall in Cavan
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 21 |
16 |
19 |
16 |
18 |
16 |
16 |
18 |
18 |
20 |
19 |
19 |
| Average monthly rainfall (mm) | 109 |
75 |
83 |
64 |
76 |
72 |
65 |
85 |
98 |
105 |
101 |
106 |
More about Cavan
Cavan by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
The climate guide for Ireland (Cavan) 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 Cavan?
Cavan has a temperate climate with warm summers and some rainfall in all months.
Cavan weather in January
Expect daytime maximum temperatures of 7°C in Cavan, Ireland in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 21 days with some rainfall and typically 109 mm of rainfall in the month.
- 7°C max day temperature
7 - 2 hours of sunshine per day
- 21 days with some rainfall
21 - 1°C min night temperature
1 - 8 hours of daylight per day
8 - No heat & humidity
0 - 109 mm of monthly rainfall
109 - No UV (Maximum) Index UV index
0
Cavan weather in February
Expect daytime maximum temperatures of 7°C in Cavan, Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 16 days with some rainfall and typically 75 mm of rainfall in the month.
- 7°C max day temperature
7 - 2 hours of sunshine per day
- 16 days with some rainfall
16 - 1°C min night temperature
1 - 10 hours of daylight per day
10 - No heat & humidity
0 - 75 mm of monthly rainfall
75 - 1 (Low) UV index
1
Cavan weather in March
Expect daytime maximum temperatures of 9°C in Cavan, Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 19 days with some rainfall and typically 83 mm of rainfall in the month.
- 9°C max day temperature
9 - 3 hours of sunshine per day
- 19 days with some rainfall
19 - 2°C min night temperature
2 - 12 hours of daylight per day
12 - No heat & humidity
0 - 83 mm of monthly rainfall
83 - 2 (Low) UV index
2
Cavan weather in April
Expect daytime maximum temperatures of 12°C in Cavan, 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 64 mm of rainfall in the month.
- 12°C max day temperature
12 - 5 hours of sunshine per day
- 16 days with some rainfall
16 - 3°C min night temperature
3 - 14 hours of daylight per day
14 - No heat & humidity
0 - 64 mm of monthly rainfall
64 - 4 (Moderate) UV index
4
Cavan weather in May
Expect daytime maximum temperatures of 15°C in Cavan, Ireland in May based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 76 mm of rainfall in the month.
- 15°C max day temperature
15 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - 6°C min night temperature
6 - 16 hours of daylight per day
16 - No heat & humidity
0 - 76 mm of monthly rainfall
76 - 5 (Moderate) UV index
5
Cavan weather in June
Expect daytime maximum temperatures of 18°C in Cavan, Ireland in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 72 mm of rainfall in the month.
- 18°C max day temperature
18 - 5 hours of sunshine per day
- 16 days with some rainfall
16 - 9°C min night temperature
9 - 17 hours of daylight per day
17 - No heat & humidity
0 - 72 mm of monthly rainfall
72 - 6 (High) UV index
6
Cavan weather in July
Expect daytime maximum temperatures of 19°C in Cavan, Ireland in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 65 mm of rainfall in the month.
- 19°C max day temperature
19 - 4 hours of sunshine per day
- 16 days with some rainfall
16 - 10°C min night temperature
10 - 16 hours of daylight per day
16 - No heat & humidity
0 - 65 mm of monthly rainfall
65 - 6 (High) UV index
6
Cavan weather in August
Expect daytime maximum temperatures of 19°C in Cavan, Ireland in August based on long-term weather averages. There are 4 hours of sunshine per day on average with 18 days with some rainfall and typically 85 mm of rainfall in the month.
- 19°C max day temperature
19 - 4 hours of sunshine per day
- 18 days with some rainfall
18 - 10°C min night temperature
10 - 15 hours of daylight per day
15 - No heat & humidity
0 - 85 mm of monthly rainfall
85 - 5 (Moderate) UV index
5
Cavan weather in September
Expect daytime maximum temperatures of 16°C in Cavan, Ireland in September based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 98 mm of rainfall in the month.
- 16°C max day temperature
16 - 3 hours of sunshine per day
- 18 days with some rainfall
18 - 8°C min night temperature
8 - 13 hours of daylight per day
13 - No heat & humidity
0 - 98 mm of monthly rainfall
98 - 4 (Moderate) UV index
4
Cavan weather in October
Expect daytime maximum temperatures of 13°C in Cavan, Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 20 days with some rainfall and typically 105 mm of rainfall in the month.
- 13°C max day temperature
13 - 3 hours of sunshine per day
- 20 days with some rainfall
20 - 6°C min night temperature
6 - 10 hours of daylight per day
10 - No heat & humidity
0 - 105 mm of monthly rainfall
105 - 2 (Low) UV index
2
Cavan weather in November
Expect daytime maximum temperatures of 9°C in Cavan, Ireland in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 19 days with some rainfall and typically 101 mm of rainfall in the month.
- 9°C max day temperature
9 - 2 hours of sunshine per day
- 19 days with some rainfall
19 - 3°C min night temperature
3 - 9 hours of daylight per day
9 - No heat & humidity
0 - 101 mm of monthly rainfall
101 - 1 (Low) UV index
1
Cavan weather in December
Expect daytime maximum temperatures of 8°C in Cavan, Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 19 days with some rainfall and typically 106 mm of rainfall in the month.
- 8°C max day temperature
8 - 1 hour of sunshine per day
- 19 days with some rainfall
19 - 2°C min night temperature
2 - 7 hours of daylight per day
7 - No heat & humidity
0 - 106 mm of monthly rainfall
106 - No UV (Maximum) Index UV index
0
More about Cavan
Cavan 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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The climate guide for Ireland (Cavan) 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 Cavan weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Cavan, County Cavan, Ireland and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
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