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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Grenagh, Ireland, with temperature in the range of an average low of 4.4°C (39.9°F) and an average high of 8.3°C (46.9°F). January, with average temperatures reaching a high of 8.3°C (46.9°F) and a low of 4.4°C (39.9°F), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Grenagh, is also a frosty month, with an average temperature varying between 8.5°C (47.3°F) and 3.9°C (39°F). In the transition from January to February, Grenagh reports an average high-temperature of a still chilly 8.5°C (47.3°F), indicating a close resemblance to the prior month. Weather in February »
Weather in March
March, the first month of the spring in Grenagh, is also a frosty month, with an average temperature varying between 4°C (39.2°F) and 9.5°C (49.1°F). The arrival of March records an average high-temperature of a still chilly 9.5°C (49.1°F), closely related to the 8.5°C (47.3°F) observed in February. Weather in March »
Weather in April
April in Grenagh, Ireland, is a cool spring month, with temperature in the range of an average high of 11.3°C (52.3°F) and an average low of 5.6°C (42.1°F). The average high-temperature during April is a cool 11.3°C (52.3°F), almost matching the conditions of the preceding month. Weather in April »
Weather in May
May, the last month of the spring in Grenagh, is a refreshing month, with an average temperature varying between 7.5°C (45.5°F) and 13.6°C (56.5°F). May's arrival brings an average high-temperature of a mild 13.6°C (56.5°F), slightly deviating from April's 11.3°C (52.3°F). Weather in May »
Weather in June
The first month of the summer, June, is a comfortable month in Grenagh, Ireland, with an average temperature fluctuating between 16.2°C (61.2°F) and 10.3°C (50.5°F). The advent of June signifies a minor shift to an average high-temperature of a comfortable 16.2°C (61.2°F), aligning closely with May. Weather in June »
Weather in July
July, the same as June, is another comfortable summer month in Grenagh, Ireland, with an average temperature ranging between max 17.8°C (64°F) and min 12.1°C (53.8°F). July, having an average high-temperature of 17.8°C (64°F) and an average low-temperature of 12.1°C (53.8°F), is the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is another comfortable month in Grenagh, Ireland, with an average temperature ranging between max 17.6°C (63.7°F) and min 11.9°C (53.4°F). Grenagh starts August with an average high-temperature of a still enjoyable 17.6°C (63.7°F), hinting at a minimal fluctuation from July. Weather in August »
Weather in September
September, the first month of the autumn in Grenagh, is still a refreshing month, with an average temperature ranging between max 15.9°C (60.6°F) and min 10.5°C (50.9°F). In September, Grenagh experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 17.6°C (63.7°F) in August to a mild 15.9°C (60.6°F). Weather in September »
Weather in October
October, the same as September, in Grenagh, Ireland, is another refreshing autumn month, with temperature in the range of an average high of 13.6°C (56.5°F) and an average low of 8.9°C (48°F). The transition into October shows a subtle variation to a still refreshing 13.6°C (56.5°F) from September's 15.9°C (60.6°F) in the average high-temperature. Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Grenagh, Ireland, with an average temperature varying between 10.2°C (50.4°F) and 6.3°C (43.3°F). A modest decline in the average high-temperature is seen during November, decreasing from a mild 13.6°C (56.5°F) in October to a fresh 10.2°C (50.4°F). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Grenagh, Ireland, with an average temperature ranging between min 5°C (41°F) and max 8.8°C (47.8°F). December's arrival shows an average high-temperature of a frosty 8.8°C (47.8°F), hardly different from the previous month. Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Grenagh?
With average temperatures fluctuating between a high of 8.3°C (46.9°F) and a low of 4.4°C (39.9°F), January stands out as the coldest month.
How much does it rain in Grenagh?
Throughout the year, in Grenagh, there are 198 rainfall days, and 586mm (23.07") of precipitation is accumulated.
When does it snow in Grenagh?
January through March, November and December are months with snowfall.
How much does it snow in Grenagh?
Throughout the year, in Grenagh, there are 3.8 snowfall days, and 20mm (0.79") of snow is accumulated.
What is the month with the least sunshine in Grenagh?
January has the least sunshine of the year, with an average of 4.1h of sunshine.
What are the months with the lowest UV index in Grenagh?
The months with the lowest UV index in Grenagh are January, February, November and December, with an average maximum UV index of 2.
What are the least humid months in Grenagh?
The months with the lowest humidity are February through April, with an average relative humidity of 84%.
What is the driest month in Grenagh?
March is the month with the least rainfall. Rain falls for 13.8 days and accumulates 33mm (1.3") of precipitation.
What is the snowiest month in Grenagh?
The month with the most snowfall in Grenagh, Ireland, is March, when snow falls for 0.9 days and typically aggregates up to 6mm (0.24") of snow.
When it does not snow in Grenagh?
April through October are months without snowfall in Grenagh, Ireland.
When are the longest days in Grenagh?
The month with the longest days in Grenagh, Ireland, is June, with an average of 16h and 42min of daylight.
What month has the most sunshine in Grenagh?
The month with the most sunshine in Grenagh is June, with an average of 7.4h of sunshine.
What are the months with the highest UV index in Grenagh?
June through August, with an average maximum UV index of 4, are months with the highest UV index.
What is the hottest time of year in Grenagh?
July is the month that records the highest temperatures in Grenagh, Ireland, with averages ranging from a high of 17.8°C (64°F) to a low of 12.1°C (53.8°F).
What are the most humid months in Grenagh?
The months with the highest humidity in Grenagh are October and December, with an average relative humidity of 87%.
When is Daylight Saving Time (DST) in Grenagh?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from IST to GMT. Daylight Saving Time ends on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to IST.
What is the rainiest month in Grenagh?
The month with the most rainfall is December, when the rain falls for 16.3 days and typically aggregates up to 66mm (2.6") of precipitation.
What is the month with the shortest days in Grenagh?
With an average of 7h and 48min of daylight, December has the shortest days of the year.
Average temperature
Grenagh, Ireland
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (8.3°C).
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure
Grenagh, Ireland
- Average pressure in January:
1012.6mbar - Average pressure in February:
1012.1mbar - Average pressure in March:
1014.8mbar - Average pressure in April:
1014.7mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1015.8mbar
- Average pressure in July:
1014.9mbar - Average pressure in August:
1013.8mbar - Average pressure in September:
1016.2mbar - Average pressure in October:
1012.9mbar - Average pressure in November:
1009mbar - Average pressure in December:
1012.3mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed
Grenagh, Ireland
- Average wind speed in January:
22.5km/h - Average wind speed in February:
23km/h - Average wind speed in March:
20km/h - Average wind speed in April:
17.8km/h - Average wind speed in May:
17.5km/h - Average wind speed in June:
16.1km/h
- Average wind speed in July:
16.1km/h - Average wind speed in August:
17.1km/h - Average wind speed in September:
17.5km/h - Average wind speed in October:
18.7km/h - Average wind speed in November:
21.4km/h - Average wind speed in December:
23.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest months (with the lowest average wind speed) are June and July (16.1km/h).
Average humidity
Grenagh, Ireland
The months with the highest relative humidity are October and December (87%).
The months with the lowest relative humidity are February, March and April (84%).
Average rainfall
Grenagh, Ireland
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is March (33mm).
Average rainfall days
Grenagh, Ireland
- Average rainfall days in January:
15.7 days - Average rainfall days in February:
13.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.6 days
- Average rainfall days in July:
21.3 days - Average rainfall days in August:
21.1 days - Average rainfall days in September:
15.3 days - Average rainfall days in October:
16.6 days - Average rainfall days in November:
14.9 days - Average rainfall days in December:
16.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (13.5 days).
Average snowfall
Grenagh, Ireland
The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Grenagh, Ireland
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.2 days - Average snowfall days in March:
0.9 days - Average snowfall days in April:
0.2 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:
0.5 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grenagh, Ireland
- Average daylight in January:
8h and 2min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 4min - Average daylight in June:
16h and 4min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 4min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
7h and 5min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 1min - Average sunshine in May:
7h and 1min - Average sunshine in June:
7h and 2min
- Average sunshine in July:
6h and 5min - Average sunshine in August:
7h and 1min - Average sunshine in September:
6h and 2min - Average sunshine in October:
4h and 3min - Average sunshine in November:
4h and 2min - Average sunshine in December:
4h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Grenagh, Ireland
- Average sunshine days in January:
13 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
9.2 days
- Average sunshine days in July:
6.8 days - Average sunshine days in August:
5.8 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
10.2 days - Average sunshine days in November:
12.9 days - Average sunshine days in December:
12.8 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (5.8 days).
Average UV index
Grenagh, Ireland
The months with the highest UV index are 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
Grenagh, Ireland
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility
Grenagh, Ireland
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).
