Climate and monthly weather forecastLettermore, Ireland
Climate and monthly weather forecast
Weather in January
January, the same as December, in Lettermore, Ireland, is a frosty winter month, with an average temperature varying between 3.9°C (39°F) and 7.9°C (46.2°F). In Lettermore, the lowest temperatures are generally noted in January, averaging a high of 7.9°C (46.2°F) and a low of 3.9°C (39°F). Weather in January »Weather in February
February, the last month of the winter in Lettermore, is another chilly month, with an average temperature varying between 8.2°C (46.8°F) and 3.3°C (37.9°F). February's weather records an average high-temperature of a still frosty 8.2°C (46.8°F), showing little deviation from January. Weather in February »Weather in March
March, the first month of the spring in Lettermore, is also a frosty month, with an average temperature fluctuating between 9.6°C (49.3°F) and 3.7°C (38.7°F). March brings an average high-temperature of a still frosty 9.6°C (49.3°F), nearly identical to the preceding month. Weather in March »Weather in April
April is a cool spring month in Lettermore, Ireland, with temperature in the range of an average high of 12°C (53.6°F) and an average low of 5°C (41°F). With the onset of April, Lettermore's average high-temperature clocks in at a fresh 12°C (53.6°F), showing a minor fluctuation from the previous month. Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Lettermore, Ireland, with temperature in the range of an average high of 13.9°C (57°F) and an average low of 7.4°C (45.3°F). The shift into May records an average high-temperature of a moderate 13.9°C (57°F), subtly varied from April's 12°C (53.6°F). Weather in May »Weather in June
June, the first month of the summer in Lettermore, is a refreshing month, with an average temperature varying between 9.8°C (49.6°F) and 16.4°C (61.5°F). The shift into June finds Lettermore, Ireland, at an average high-temperature of a still refreshing 16.4°C (61.5°F), closely comparable to May's conditions. Weather in June »Weather in July
July, the same as June, is another refreshing summer month in Lettermore, Ireland, with an average temperature varying between 17.3°C (63.1°F) and 11.3°C (52.3°F). The average temperatures reach their apex in July, averaging 17.3°C (63.1°F) at the high end and 11.3°C (52.3°F) at the low end. Weather in July »Weather in August
The last month of the summer, August, is another comfortable month in Lettermore, Ireland, with an average temperature varying between 16.9°C (62.4°F) and 11.4°C (52.5°F). The onset of August brings an average high-temperature of a still enjoyable 16.9°C (62.4°F), nearly matching the July temperature. Weather in August »Weather in September
September, the first month of the autumn in Lettermore, is also a moderate month, with an average temperature varying between 9.9°C (49.8°F) and 15.5°C (59.9°F). The beginning of September records an average high-temperature of a still refreshing 15.5°C (59.9°F), almost echoing the conditions of the previous month. Weather in September »Weather in October
October, the same as September, in Lettermore, Ireland, is a moderate autumn month, with an average temperature varying between 13.1°C (55.6°F) and 8.3°C (46.9°F). The advent of October reveals an average high-temperature of a still mild 13.1°C (55.6°F), showing minimal difference from the prior month. Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Lettermore, Ireland, with an average temperature varying between 5.5°C (41.9°F) and 9.8°C (49.6°F). The transition into November subtly indicates a reduction in the average high-temperature, down to a chilly 9.8°C (49.6°F) from October's mild 13.1°C (55.6°F). Weather in November »Weather in December
December, the first month of the winter in Lettermore, is also a frosty month, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 8.1°C (46.6°F). The shift into December reveals an average high-temperature of a still frosty 8.1°C (46.6°F), closely mirroring November's climate. Weather in December »Updated: Jan 29, 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
In Lettermore, January registers the lowest temperatures, averaging 7.9°C (46.2°F) at the peak and 3.9°C (39°F) at the lowest.
January, July through December, with an average relative humidity of 87%, are most humid months.
Throughout the year, there are 235.1 rainfall days, and 619mm (24.37") of precipitation is accumulated.
January through March and December are months with snowfall in Lettermore, Ireland.
January is the month with the most snowfall. Snow falls for 0.8 days and accumulates 7mm (0.28") of snow.
Throughout the year, in Lettermore, Ireland, there are 3.1 snowfall days, and 20mm (0.79") of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lettermore.
The months with the lowest humidity are March and April, with an average relative humidity of 83%.
April is the month with the least rainfall in Lettermore, Ireland. Rain falls for 17.3 days and accumulates 36mm (1.42") of precipitation.
In Lettermore, snow does not fall in April through November.
The months with the highest UV index in Lettermore, Ireland, are May through July, with an average maximum UV index of 4.
The month with the longest days in Lettermore is June, with an average of 16h and 54min of daylight.
With an average of 7.4h of sunshine, June has the most sunshine of the year in Lettermore.
July is the month that records the highest temperatures, with averages ranging from a high of 17.3°C (63.1°F) to a low of 11.3°C (52.3°F).
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time starts in Lettermore, Ireland, 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.
November is the month with the most rainfall in Lettermore, Ireland. Rain falls for 18.9 days and accumulates 69mm (2.72") of precipitation.
December has the shortest days of the year in Lettermore, Ireland, with an average of 7h and 36min of daylight.
December has the least sunshine of the year in Lettermore, with an average of 3.7h of sunshine.
Average temperature
Lettermore, Ireland
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (7.9°C).
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure
Lettermore, Ireland
- Average pressure in January:
1010.6mbar - Average pressure in February:
1010.3mbar - Average pressure in March:
1013.7mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1015.7mbar - Average pressure in June:
1015.2mbar
- Average pressure in July:
1013.8mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1014.8mbar - Average pressure in October:
1011.7mbar - Average pressure in November:
1007.7mbar - Average pressure in December:
1010.2mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed
Lettermore, Ireland
- Average wind speed in January:
22.1km/h - Average wind speed in February:
22.2km/h - Average wind speed in March:
20km/h - Average wind speed in April:
16.8km/h - Average wind speed in May:
17km/h - Average wind speed in June:
15.2km/h
- Average wind speed in July:
14.8km/h - Average wind speed in August:
16.4km/h - Average wind speed in September:
16.4km/h - Average wind speed in October:
18km/h - Average wind speed in November:
19.8km/h - Average wind speed in December:
22.2km/h
The windiest months (with the highest average wind speed) are February and December (22.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity
Lettermore, Ireland
The months with the highest relative humidity are January, July, August, September, October, November and December (87%).
The months with the lowest relative humidity are March and April (83%).
Average rainfall
Lettermore, Ireland
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days
Lettermore, Ireland
- Average rainfall days in January:
20.8 days - Average rainfall days in February:
17.6 days - Average rainfall days in March:
17.4 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
20.4 days - Average rainfall days in June:
19.6 days
- Average rainfall days in July:
22.4 days - Average rainfall days in August:
23.2 days - Average rainfall days in September:
17.4 days - Average rainfall days in October:
19.3 days - Average rainfall days in November:
18.9 days - Average rainfall days in December:
20.8 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is April (17.3 days).
Average snowfall
Lettermore, Ireland
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Lettermore, Ireland
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
0.7 days - Average snowfall days in March:
0.9 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:
0.1 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is March (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lettermore, Ireland
- Average daylight in January:
8h and 12min - Average daylight in February:
9h and 54min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 0min - Average daylight in May:
15h and 54min - Average daylight in June:
16h and 54min
- Average daylight in July:
16h and 24min - Average daylight in August:
14h and 42min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 42min - Average daylight in December:
7h and 36min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
3h and 54min - Average sunshine in March:
4h and 42min - Average sunshine in April:
6h and 24min - Average sunshine in May:
6h and 12min - Average sunshine in June:
7h and 24min
- Average sunshine in July:
6h and 0min - Average sunshine in August:
5h and 36min - Average sunshine in September:
5h and 24min - Average sunshine in October:
4h and 6min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 42min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days
Lettermore, Ireland
- Average sunshine days in January:
6.6 days - Average sunshine days in February:
7.8 days - Average sunshine days in March:
9.4 days - Average sunshine days in April:
9 days - Average sunshine days in May:
6.6 days - Average sunshine days in June:
7 days
- Average sunshine days in July:
6 days - Average sunshine days in August:
4.1 days - Average sunshine days in September:
7.2 days - Average sunshine days in October:
8.8 days - Average sunshine days in November:
7.7 days - Average sunshine days in December:
7.1 days
The month with the most sunshine days is March (9.4 days).
The month with the least sunshine days is August (4.1 days).
Average UV index
Lettermore, Ireland
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Lettermore, Ireland
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility
Lettermore, Ireland
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
