- 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
Westport weather by month
Check out Westport weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Westport (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 7 |
7 |
9 |
11 |
14 |
16 |
17 |
17 |
16 |
13 |
9 |
8 |
| Min temperature (night-time) | 2 |
2 |
3 |
4 |
6 |
9 |
10 |
10 |
9 |
7 |
4 |
3 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Sea temperature | 9 |
8 |
8 |
9 |
11 |
13 |
14 |
15 |
14 |
13 |
11 |
10 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Westport
| 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) | 0 |
1 |
2 |
4 |
5 |
6 |
6 |
5 |
4 |
2 |
1 |
0 |
Rainfall in Westport
| 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 |
21 |
24 |
24 |
24 |
| Average monthly rainfall (mm) | 141 |
90 |
103 |
71 |
82 |
74 |
74 |
99 |
119 |
139 |
144 |
137 |
More about Westport
Westport by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
The climate guide for Ireland (Westport) 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 Westport?
Westport has a temperate climate with warm summers and some rainfall in all months.
Westport weather in January
Expect daytime maximum temperatures of 7°C in Westport, 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 141 mm of rainfall in the month.
- 7°C max day temperature
7 - 2 hours of sunshine per day
- 24 days with some rainfall
24 - 2°C min night temperature
2 - 8 hours of daylight per day
8 - No heat & humidity
0 - 141 mm of monthly rainfall
141 - No UV (Maximum) Index UV index
0 - 9°C sea temperature
9
Westport weather in February
Expect daytime maximum temperatures of 7°C in Westport, 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.
- 7°C max day temperature
7 - 2 hours of sunshine per day
- 20 days with some rainfall
20 - 2°C min night temperature
2 - 10 hours of daylight per day
10 - No heat & humidity
0 - 90 mm of monthly rainfall
90 - 1 (Low) UV index
1 - 8°C sea temperature
8
Westport weather in March
Expect daytime maximum temperatures of 9°C in Westport, 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 103 mm of rainfall in the month.
- 9°C max day temperature
9 - 3 hours of sunshine per day
- 23 days with some rainfall
23 - 3°C min night temperature
3 - 12 hours of daylight per day
12 - No heat & humidity
0 - 103 mm of monthly rainfall
103 - 2 (Low) UV index
2 - 8°C sea temperature
8
Westport weather in April
Expect daytime maximum temperatures of 11°C in Westport, 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 71 mm of rainfall in the month.
- 11°C max day temperature
11 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - 4°C min night temperature
4 - 14 hours of daylight per day
14 - No heat & humidity
0 - 71 mm of monthly rainfall
71 - 4 (Moderate) UV index
4 - 9°C sea temperature
9
Westport weather in May
Expect daytime maximum temperatures of 14°C in Westport, 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 82 mm of rainfall in the month.
- 14°C max day temperature
14 - 6 hours of sunshine per day
- 19 days with some rainfall
19 - 6°C min night temperature
6 - 16 hours of daylight per day
16 - No heat & humidity
0 - 82 mm of monthly rainfall
82 - 5 (Moderate) UV index
5 - 11°C sea temperature
11
Westport weather in June
Expect daytime maximum temperatures of 16°C in Westport, 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 74 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 - 74 mm of monthly rainfall
74 - 6 (High) UV index
6 - 13°C sea temperature
13
Westport weather in July
Expect daytime maximum temperatures of 17°C in Westport, 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 74 mm of rainfall in the month.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 18 days with some rainfall
18 - 10°C min night temperature
10 - 16 hours of daylight per day
16 - No heat & humidity
0 - 74 mm of monthly rainfall
74 - 6 (High) UV index
6 - 14°C sea temperature
14
Westport weather in August
Expect daytime maximum temperatures of 17°C in Westport, Ireland in August based on long-term weather averages. There are 4 hours of sunshine per day on average with 21 days with some rainfall and typically 99 mm of rainfall in the month.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 21 days with some rainfall
21 - 10°C min night temperature
10 - 15 hours of daylight per day
15 - No heat & humidity
0 - 99 mm of monthly rainfall
99 - 5 (Moderate) UV index
5 - 15°C sea temperature
15
Westport weather in September
Expect daytime maximum temperatures of 16°C in Westport, Ireland in September based on long-term weather averages. There are 3 hours of sunshine per day on average with 21 days with some rainfall and typically 119 mm of rainfall in the month.
- 16°C max day temperature
16 - 3 hours of sunshine per day
- 21 days with some rainfall
21 - 9°C min night temperature
9 - 13 hours of daylight per day
13 - No heat & humidity
0 - 119 mm of monthly rainfall
119 - 4 (Moderate) UV index
4 - 14°C sea temperature
14
Westport weather in October
Expect daytime maximum temperatures of 13°C in Westport, 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 139 mm of rainfall in the month.
- 13°C max day temperature
13 - 3 hours of sunshine per day
- 24 days with some rainfall
24 - 7°C min night temperature
7 - 11 hours of daylight per day
11 - No heat & humidity
0 - 139 mm of monthly rainfall
139 - 2 (Low) UV index
2 - 13°C sea temperature
13
Westport weather in November
Expect daytime maximum temperatures of 9°C in Westport, 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 144 mm of rainfall in the month.
- 9°C max day temperature
9 - 2 hours of sunshine per day
- 24 days with some rainfall
24 - 4°C min night temperature
4 - 9 hours of daylight per day
9 - No heat & humidity
0 - 144 mm of monthly rainfall
144 - 1 (Low) UV index
1 - 11°C sea temperature
11
Westport weather in December
Expect daytime maximum temperatures of 8°C in Westport, 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 137 mm of rainfall in the month.
- 8°C max day temperature
8 - 1 hour 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 - 137 mm of monthly rainfall
137 - No UV (Maximum) Index UV index
0 - 10°C sea temperature
10
More about Westport
Westport 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 (Westport) 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 Westport weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Westport, County Mayo, Ireland and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holiday destinations
- Beach holidays
- City breaks
- Family holidays
- Half term holidays
- Spring holidays
- Summer holidays
- Autumn holidays
- Winter sun holidays
- Honeymoons
- Coolcations
- Compare places
- Ski resorts
Save with latest deals & discounts
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- TUI
- Jet2holidays
- Neilson
- Marella Cruises
- Holiday Extras
- Pierre & Vacances
- Caledonian Travel
- Club Med
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport











Cruise deal finder