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Belmullet weather by month
Check out Belmullet weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Belmullet (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 8 |
8 |
9 |
12 |
14 |
16 |
17 |
17 |
16 |
13 |
10 |
9 |
| Min temperature (night-time) | 3 |
3 |
4 |
5 |
7 |
9 |
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 |
12 |
14 |
15 |
14 |
13 |
11 |
10 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Belmullet
| 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 |
17 |
15 |
13 |
10 |
9 |
7 |
| UV Index (Maximum) | 0 |
1 |
2 |
3 |
5 |
6 |
6 |
5 |
3 |
2 |
1 |
0 |
Rainfall in Belmullet
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 24 |
20 |
23 |
18 |
19 |
18 |
18 |
21 |
22 |
24 |
24 |
24 |
| Average monthly rainfall (mm) | 133 |
90 |
100 |
66 |
71 |
72 |
75 |
96 |
109 |
136 |
134 |
132 |
More about Belmullet
Belmullet by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
The climate guide for Ireland (Belmullet) 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 Belmullet?
Belmullet has a temperate climate with warm summers and some rainfall in all months.
Belmullet weather in January
Expect daytime maximum temperatures of 8°C in Belmullet, Ireland in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 24 days with some rainfall and typically 133 mm of rainfall in the month.
- 8°C max day temperature
8 - 2 hours of sunshine per day
- 24 days with some rainfall
24 - 3°C min night temperature
3 - 8 hours of daylight per day
8 - No heat & humidity
0 - 133 mm of monthly rainfall
133 - No UV (Maximum) Index UV index
0 - 9°C sea temperature
9
Belmullet weather in February
Expect daytime maximum temperatures of 8°C in Belmullet, Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 90 mm of rainfall in the month.
- 8°C max day temperature
8 - 2 hours of sunshine per day
- 20 days with some rainfall
20 - 3°C min night temperature
3 - 10 hours of daylight per day
10 - No heat & humidity
0 - 90 mm of monthly rainfall
90 - 1 (Low) UV index
1 - 9°C sea temperature
9
Belmullet weather in March
Expect daytime maximum temperatures of 9°C in Belmullet, Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 23 days with some rainfall and typically 100 mm of rainfall in the month.
- 9°C max day temperature
9 - 3 hours of sunshine per day
- 23 days with some rainfall
23 - 4°C min night temperature
4 - 12 hours of daylight per day
12 - No heat & humidity
0 - 100 mm of monthly rainfall
100 - 2 (Low) UV index
2 - 9°C sea temperature
9
Belmullet weather in April
Expect daytime maximum temperatures of 12°C in Belmullet, Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 66 mm of rainfall in the month.
- 12°C max day temperature
12 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - 5°C min night temperature
5 - 14 hours of daylight per day
14 - No heat & humidity
0 - 66 mm of monthly rainfall
66 - 3 (Moderate) UV index
3 - 9°C sea temperature
9
Belmullet weather in May
Expect daytime maximum temperatures of 14°C in Belmullet, Ireland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 19 days with some rainfall and typically 71 mm of rainfall in the month.
- 14°C max day temperature
14 - 6 hours of sunshine per day
- 19 days with some rainfall
19 - 7°C min night temperature
7 - 16 hours of daylight per day
16 - No heat & humidity
0 - 71 mm of monthly rainfall
71 - 5 (Moderate) UV index
5 - 11°C sea temperature
11
Belmullet weather in June
Expect daytime maximum temperatures of 16°C in Belmullet, Ireland in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 72 mm of rainfall in the month.
- 16°C max day temperature
16 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - 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 - 12°C sea temperature
12
Belmullet weather in July
Expect daytime maximum temperatures of 17°C in Belmullet, Ireland in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 18 days with some rainfall and typically 75 mm of rainfall in the month.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 18 days with some rainfall
18 - 11°C min night temperature
11 - 17 hours of daylight per day
17 - No heat & humidity
0 - 75 mm of monthly rainfall
75 - 6 (High) UV index
6 - 14°C sea temperature
14
Belmullet weather in August
Expect daytime maximum temperatures of 17°C in Belmullet, Ireland in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 96 mm of rainfall in the month.
- 17°C max day temperature
17 - 5 hours of sunshine per day
- 21 days with some rainfall
21 - 11°C min night temperature
11 - 15 hours of daylight per day
15 - No heat & humidity
0 - 96 mm of monthly rainfall
96 - 5 (Moderate) UV index
5 - 15°C sea temperature
15
Belmullet weather in September
Expect daytime maximum temperatures of 16°C in Belmullet, Ireland in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 22 days with some rainfall and typically 109 mm of rainfall in the month.
- 16°C max day temperature
16 - 4 hours of sunshine per day
- 22 days with some rainfall
22 - 10°C min night temperature
10 - 13 hours of daylight per day
13 - No heat & humidity
0 - 109 mm of monthly rainfall
109 - 3 (Moderate) UV index
3 - 14°C sea temperature
14
Belmullet weather in October
Expect daytime maximum temperatures of 13°C in Belmullet, Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 24 days with some rainfall and typically 136 mm of rainfall in the month.
- 13°C max day temperature
13 - 3 hours of sunshine per day
- 24 days with some rainfall
24 - 8°C min night temperature
8 - 10 hours of daylight per day
10 - No heat & humidity
0 - 136 mm of monthly rainfall
136 - 2 (Low) UV index
2 - 13°C sea temperature
13
Belmullet weather in November
Expect daytime maximum temperatures of 10°C in Belmullet, Ireland in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 24 days with some rainfall and typically 134 mm of rainfall in the month.
- 10°C max day temperature
10 - 2 hours of sunshine per day
- 24 days with some rainfall
24 - 5°C min night temperature
5 - 9 hours of daylight per day
9 - No heat & humidity
0 - 134 mm of monthly rainfall
134 - 1 (Low) UV index
1 - 11°C sea temperature
11
Belmullet weather in December
Expect daytime maximum temperatures of 9°C in Belmullet, Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 24 days with some rainfall and typically 132 mm of rainfall in the month.
- 9°C max day temperature
9 - 1 hour of sunshine per day
- 24 days with some rainfall
24 - 4°C min night temperature
4 - 7 hours of daylight per day
7 - No heat & humidity
0 - 132 mm of monthly rainfall
132 - No UV (Maximum) Index UV index
0 - 10°C sea temperature
10
More about Belmullet
Belmullet 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
- Find last minute deals or early bird discounts
- Filter offers by price, destination, ship & departure point
The climate guide for Ireland (Belmullet) 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 Belmullet weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Belmullet, County Mayo, Ireland and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
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