Climate and monthly weather forecastFahan, Ireland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Fahan, Ireland, is a frosty winter month, with temperature in the range of an average high of 6.8°C (44.2°F) and an average low of 3.4°C (38.1°F). Fahan experiences its lowest average temperatures in January, reaching a peak of 6.8°C (44.2°F) and a minimum of 3.4°C (38.1°F). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Fahan, Ireland, with an average temperature fluctuating between 3.3°C (37.9°F) and 7.3°C (45.1°F). The arrival of February brings an average high-temperature of a still chilly 7.3°C (45.1°F), nearly identical to January's 6.8°C (44.2°F). Weather in February »Weather in March
March, the first month of the spring in Fahan, is still a chilly month, with an average temperature varying between 3.6°C (38.5°F) and 8.8°C (47.8°F). The beginning of March records an average high-temperature of a still chilly 8.8°C (47.8°F), almost echoing the conditions of the previous month. Weather in March »Weather in April
April in Fahan, Ireland, is a fresh spring month, with temperature in the range of an average low of 5.2°C (41.4°F) and an average high of 11°C (51.8°F). Fahan's transition from March to April introduces an average high-temperature of a fresh 11°C (51.8°F), marking an insignificant variation from the 8.8°C (47.8°F). Weather in April »Weather in May
May, the last month of the spring in Fahan, is a moderate month, with an average temperature fluctuating between 13°C (55.4°F) and 6.9°C (44.4°F). Fahan's entry into May measures an average high-temperature of a refreshing 13°C (55.4°F), closely parallel to the preceding month. Weather in May »Weather in June
The first month of the summer, June, is still a refreshing month in Fahan, Ireland, with an average temperature varying between 15.2°C (59.4°F) and 9.3°C (48.7°F). At the start of June, Fahan's average high-temperature reaches a still moderate 15.2°C (59.4°F), subtly different from the preceding month. Weather in June »Weather in July
July is a refreshing summer month in Fahan, Ireland, with an average temperature fluctuating between 11.2°C (52.2°F) and 16.3°C (61.3°F). July is Fahan's warmest month, registering average high temperatures of 16.3°C (61.3°F) and lows of 11.2°C (52.2°F). Weather in July »Weather in August
August, the last month of the summer in Fahan, is another refreshing month, with an average temperature ranging between max 16°C (60.8°F) and min 11°C (51.8°F). August's advent notes a subtle adjustment in average high-temperature to a still comfortable 16°C (60.8°F) from July. Weather in August »Weather in September
September, the first month of the autumn in Fahan, is also a moderate month, with an average temperature ranging between max 14.9°C (58.8°F) and min 9.7°C (49.5°F). The transition into September notes an average high-temperature of a mild 14.9°C (58.8°F), revealing a mild distinction from the 16°C (60.8°F) in August. Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Fahan, Ireland, with temperature in the range of an average low of 8.2°C (46.8°F) and an average high of 12.4°C (54.3°F). The arrival of October sees a recorded average high-temperature of a cool 12.4°C (54.3°F), showing little divergence from the previous month's conditions. Weather in October »Weather in November
November, the last month of the autumn in Fahan, is also a frosty month, with an average temperature fluctuating between 9.2°C (48.6°F) and 5.5°C (41.9°F). Fahan's November weather features a light decline in high-temperatures, reducing from a cool 12.4°C (54.3°F) in October to a frosty 9.2°C (48.6°F). Weather in November »Weather in December
December, the first month of the winter in Fahan, is still a chilly month, with an average temperature ranging between min 4°C (39.2°F) and max 7.4°C (45.3°F). Fahan registers an average high-temperature of a still frosty 7.4°C (45.3°F) at the commencement of December, closely related to the preceding month. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Fahan, Ireland
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (6.8°C).
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure
Fahan, Ireland
- Average pressure in January:
1008.6mbar - Average pressure in February:
1008.7mbar - Average pressure in March:
1012.5mbar - Average pressure in April:
1014.2mbar - Average pressure in May:
1015.1mbar - Average pressure in June:
1014.7mbar
- Average pressure in July:
1012.8mbar - Average pressure in August:
1011.1mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1010.9mbar - Average pressure in November:
1006.5mbar - Average pressure in December:
1008mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.5mbar).
Average wind speed
Fahan, Ireland
- Average wind speed in January:
23.6km/h - Average wind speed in February:
22.4km/h - Average wind speed in March:
21.3km/h - Average wind speed in April:
17.7km/h - Average wind speed in May:
17.2km/h - Average wind speed in June:
14.8km/h
- Average wind speed in July:
14.7km/h - Average wind speed in August:
15.9km/h - Average wind speed in September:
18km/h - Average wind speed in October:
19.3km/h - Average wind speed in November:
20.5km/h - Average wind speed in December:
22.8km/h
The windiest month (with the highest average wind speed) is January (23.6km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity
Fahan, Ireland
The months with the highest relative humidity are July and August (87%).
The months with the lowest relative humidity are March and April (82%).
Average rainfall
Fahan, Ireland
The wettest month (with the highest rainfall) is August (83mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days
Fahan, Ireland
- Average rainfall days in January:
16.8 days - Average rainfall days in February:
13.4 days - Average rainfall days in March:
16.9 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
20.8 days
- Average rainfall days in July:
24.3 days - Average rainfall days in August:
25.4 days - Average rainfall days in September:
19.9 days - Average rainfall days in October:
18 days - Average rainfall days in November:
17.3 days - Average rainfall days in December:
18.3 days
The month with the highest number of rainy days is August (25.4 days).
The month with the least rainy days is February (13.4 days).
Average snowfall
Fahan, Ireland
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Fahan, Ireland
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.5 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Fahan, Ireland
- Average daylight in January:
7h and 54min - Average daylight in February:
9h and 42min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 12min - Average daylight in May:
16h and 12min - Average daylight in June:
17h and 18min
- Average daylight in July:
16h and 42min - Average daylight in August:
14h and 54min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 30min - Average daylight in November:
8h and 24min - Average daylight in December:
7h and 18min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 48min - Average sunshine in March:
4h and 42min - Average sunshine in April:
6h and 54min - Average sunshine in May:
6h and 36min - Average sunshine in June:
7h and 36min
- Average sunshine in July:
6h and 24min - Average sunshine in August:
6h and 0min - Average sunshine in September:
5h and 24min - Average sunshine in October:
3h and 48min - Average sunshine in November:
3h and 48min - Average sunshine in December:
3h and 54min
The month with the most sunshine is June (Average sunshine: 7h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Fahan, Ireland
- Average sunshine days in January:
11.6 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
10.7 days - Average sunshine days in June:
6.2 days
- Average sunshine days in July:
4.3 days - Average sunshine days in August:
3.3 days - Average sunshine days in September:
6.5 days - Average sunshine days in October:
9.4 days - Average sunshine days in November:
11 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is April (12.5 days).
The month with the least sunshine days is August (3.3 days).
Average UV index
Fahan, Ireland
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Fahan, Ireland
The months with the most cloud cover are January and July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility
Fahan, Ireland
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).





