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Redcastle weather by month
Check out Redcastle weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Redcastle (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 7 |
7 |
9 |
11 |
14 |
16 |
17 |
17 |
15 |
13 |
9 |
8 |
| Min temperature (night-time) | 1 |
1 |
2 |
4 |
6 |
9 |
10 |
10 |
9 |
7 |
3 |
2 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Sea temperature | 8 |
8 |
8 |
8 |
10 |
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 Redcastle
| 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 |
8 |
7 |
| UV Index (Maximum) | 0 |
1 |
2 |
3 |
5 |
5 |
6 |
5 |
3 |
2 |
1 |
0 |
Rainfall in Redcastle
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 23 |
18 |
21 |
17 |
18 |
17 |
19 |
20 |
21 |
23 |
23 |
23 |
| Average monthly rainfall (mm) | 122 |
88 |
93 |
68 |
73 |
73 |
77 |
93 |
103 |
121 |
113 |
115 |
More about Redcastle
Redcastle by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Ireland
The climate guide for Ireland (Redcastle) 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 Redcastle?
Redcastle has a temperate climate with warm summers and some rainfall in all months.
Redcastle weather in January
Expect daytime maximum temperatures of 7°C in Redcastle, Ireland in January based on long-term weather averages. There is 1 hour of sunshine per day on average with 23 days with some rainfall and typically 122 mm of rainfall in the month.
- 7°C max day temperature
7 - 1 hour of sunshine per day
- 23 days with some rainfall
23 - 1°C min night temperature
1 - 8 hours of daylight per day
8 - No heat & humidity
0 - 122 mm of monthly rainfall
122 - No UV (Maximum) Index UV index
0 - 8°C sea temperature
8
Redcastle weather in February
Expect daytime maximum temperatures of 7°C in Redcastle, 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 88 mm of rainfall in the month.
- 7°C max day temperature
7 - 2 hours of sunshine per day
- 18 days with some rainfall
18 - 1°C min night temperature
1 - 10 hours of daylight per day
10 - No heat & humidity
0 - 88 mm of monthly rainfall
88 - 1 (Low) UV index
1 - 8°C sea temperature
8
Redcastle weather in March
Expect daytime maximum temperatures of 9°C in Redcastle, Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 21 days with some rainfall and typically 93 mm of rainfall in the month.
- 9°C max day temperature
9 - 3 hours of sunshine per day
- 21 days with some rainfall
21 - 2°C min night temperature
2 - 12 hours of daylight per day
12 - No heat & humidity
0 - 93 mm of monthly rainfall
93 - 2 (Low) UV index
2 - 8°C sea temperature
8
Redcastle weather in April
Expect daytime maximum temperatures of 11°C in Redcastle, Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 68 mm of rainfall in the month.
- 11°C max day temperature
11 - 5 hours of sunshine per day
- 17 days with some rainfall
17 - 4°C min night temperature
4 - 14 hours of daylight per day
14 - No heat & humidity
0 - 68 mm of monthly rainfall
68 - 3 (Moderate) UV index
3 - 8°C sea temperature
8
Redcastle weather in May
Expect daytime maximum temperatures of 14°C in Redcastle, 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 73 mm of rainfall in the month.
- 14°C max day temperature
14 - 6 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 - 73 mm of monthly rainfall
73 - 5 (Moderate) UV index
5 - 10°C sea temperature
10
Redcastle weather in June
Expect daytime maximum temperatures of 16°C in Redcastle, 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 73 mm of rainfall in the month.
- 16°C max day temperature
16 - 5 hours of sunshine per day
- 17 days with some rainfall
17 - 9°C min night temperature
9 - 17 hours of daylight per day
17 - No heat & humidity
0 - 73 mm of monthly rainfall
73 - 5 (Moderate) UV index
5 - 12°C sea temperature
12
Redcastle weather in July
Expect daytime maximum temperatures of 17°C in Redcastle, Ireland in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 19 days with some rainfall and typically 77 mm of rainfall in the month.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 19 days with some rainfall
19 - 10°C min night temperature
10 - 17 hours of daylight per day
17 - No heat & humidity
0 - 77 mm of monthly rainfall
77 - 6 (High) UV index
6 - 14°C sea temperature
14
Redcastle weather in August
Expect daytime maximum temperatures of 17°C in Redcastle, Ireland in August based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 93 mm of rainfall in the month.
- 17°C max day temperature
17 - 4 hours of sunshine per day
- 20 days with some rainfall
20 - 10°C min night temperature
10 - 15 hours of daylight per day
15 - No heat & humidity
0 - 93 mm of monthly rainfall
93 - 5 (Moderate) UV index
5 - 15°C sea temperature
15
Redcastle weather in September
Expect daytime maximum temperatures of 15°C in Redcastle, 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 103 mm of rainfall in the month.
- 15°C max day temperature
15 - 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 - 103 mm of monthly rainfall
103 - 3 (Moderate) UV index
3 - 14°C sea temperature
14
Redcastle weather in October
Expect daytime maximum temperatures of 13°C in Redcastle, Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 23 days with some rainfall and typically 121 mm of rainfall in the month.
- 13°C max day temperature
13 - 3 hours of sunshine per day
- 23 days with some rainfall
23 - 7°C min night temperature
7 - 10 hours of daylight per day
10 - No heat & humidity
0 - 121 mm of monthly rainfall
121 - 2 (Low) UV index
2 - 13°C sea temperature
13
Redcastle weather in November
Expect daytime maximum temperatures of 9°C in Redcastle, Ireland in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 23 days with some rainfall and typically 113 mm of rainfall in the month.
- 9°C max day temperature
9 - 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 - 113 mm of monthly rainfall
113 - 1 (Low) UV index
1 - 11°C sea temperature
11
Redcastle weather in December
Expect daytime maximum temperatures of 8°C in Redcastle, 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 115 mm of rainfall in the month.
- 8°C max day temperature
8 - 1 hour of sunshine per day
- 23 days with some rainfall
23 - 2°C min night temperature
2 - 7 hours of daylight per day
7 - No heat & humidity
0 - 115 mm of monthly rainfall
115 - No UV (Maximum) Index UV index
0 - 10°C sea temperature
10
More about Redcastle
Redcastle 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 (Redcastle) 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 Redcastle weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Redcastle, County Donegal, Ireland and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Ireland
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