Cobh weather by month

Check out Cobh weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Cobh (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	8	8	10	12	14	17	19	19	17	14	11	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
Sea temperature	9	9	9	9	11	14	15	16	15	14	12	10

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Cobh

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	2	2	4	5	6	6	5	5	4	3	2	2
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 Cobh

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	21	18	18	15	17	15	14	17	17	19	19	20
Average monthly rainfall (mm)	115	93	88	61	73	62	65	87	97	105	99	119

More about Cobh

Cobh by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

The climate guide for Ireland (Cobh) 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 Cobh?

Cobh has a temperate climate with warm summers and some rainfall in all months.

Cobh weather in January

Expect daytime maximum temperatures of 8°C in Cobh, 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 115 mm of rainfall in the month.

8
8°C max day temperature
2
2 hours of sunshine per day
21
21 days with some rainfall
3
3°C min night temperature
8
8 hours of daylight per day
0
No heat & humidity
115
115 mm of monthly rainfall
1
1 (Low) UV index
9
9°C sea temperature

Back to months

Cobh weather in February

Expect daytime maximum temperatures of 8°C in Cobh, Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 93 mm of rainfall in the month.

8
8°C max day temperature
2
2 hours of sunshine per day
18
18 days with some rainfall
3
3°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
1
1 (Low) UV index
9
9°C sea temperature

Back to months

Cobh weather in March

Expect daytime maximum temperatures of 10°C in Cobh, Ireland in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 18 days with some rainfall and typically 88 mm of rainfall in the month.

10
10°C max day temperature
4
4 hours of sunshine per day
18
18 days with some rainfall
4
4°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
88
88 mm of monthly rainfall
2
2 (Low) UV index
9
9°C sea temperature

Back to months

Cobh weather in April

Expect daytime maximum temperatures of 12°C in Cobh, Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 61 mm of rainfall in the month.

12
12°C max day temperature
5
5 hours of sunshine per day
15
15 days with some rainfall
5
5°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
61
61 mm of monthly rainfall
4
4 (Moderate) UV index
9
9°C sea temperature

Back to months

Cobh weather in May

Expect daytime maximum temperatures of 14°C in Cobh, Ireland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 73 mm of rainfall in the month.

14
14°C max day temperature
6
6 hours of sunshine per day
17
17 days with some rainfall
7
7°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
73
73 mm of monthly rainfall
5
5 (Moderate) UV index
11
11°C sea temperature

Back to months

Cobh weather in June

Expect daytime maximum temperatures of 17°C in Cobh, Ireland in June based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 62 mm of rainfall in the month.

17
17°C max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
10
10°C min night temperature
17
17 hours of daylight per day
0
No heat & humidity
62
62 mm of monthly rainfall
6
6 (High) UV index
14
14°C sea temperature

Back to months

Cobh weather in July

Expect daytime maximum temperatures of 19°C in Cobh, Ireland in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 65 mm of rainfall in the month.

19
19°C max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
11
11°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
65
65 mm of monthly rainfall
6
6 (High) UV index
15
15°C sea temperature

Back to months

Cobh weather in August

Expect daytime maximum temperatures of 19°C in Cobh, Ireland in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 87 mm of rainfall in the month.

19
19°C max day temperature
5
5 hours of sunshine per day
17
17 days with some rainfall
11
11°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
87
87 mm of monthly rainfall
5
5 (Moderate) UV index
16
16°C sea temperature

Back to months

Cobh weather in September

Expect daytime maximum temperatures of 17°C in Cobh, Ireland in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 17 days with some rainfall and typically 97 mm of rainfall in the month.

17
17°C max day temperature
4
4 hours of sunshine per day
17
17 days with some rainfall
10
10°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
4
4 (Moderate) UV index
15
15°C sea temperature

Back to months

Cobh weather in October

Expect daytime maximum temperatures of 14°C in Cobh, Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 19 days with some rainfall and typically 105 mm of rainfall in the month.

14
14°C max day temperature
3
3 hours of sunshine per day
19
19 days with some rainfall
8
8°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
105
105 mm of monthly rainfall
2
2 (Low) UV index
14
14°C sea temperature

Back to months

Cobh weather in November

Expect daytime maximum temperatures of 11°C in Cobh, 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 99 mm of rainfall in the month.

11
11°C max day temperature
2
2 hours of sunshine per day
19
19 days with some rainfall
5
5°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
99
99 mm of monthly rainfall
1
1 (Low) UV index
12
12°C sea temperature

Back to months

Cobh weather in December

Expect daytime maximum temperatures of 9°C in Cobh, Ireland in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 119 mm of rainfall in the month.