Climate and monthly weather forecastLlanllyfni, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Llanllyfni, United Kingdom, with temperature in the range of an average high of 7.1°C (44.8°F) and an average low of 4.5°C (40.1°F). In January, Llanllyfni notes an average high-temperature of a still chilly 7.1°C (44.8°F), hardly different from the preceding month. Weather in January »Weather in February
February, the last month of the winter in Llanllyfni, is another chilly month, with temperature in the range of an average high of 7°C (44.6°F) and an average low of 4.3°C (39.7°F). In Llanllyfni, February is the month with the lowest recorded average temperatures, measuring a high of 7°C (44.6°F) and a low of 4.3°C (39.7°F). Weather in February »Weather in March
March, the first month of the spring in Llanllyfni, is still a chilly month, with temperature in the range of an average low of 4.7°C (40.5°F) and an average high of 8.3°C (46.9°F). March registers an average high-temperature of a still frosty 8.3°C (46.9°F), slightly varied from February's 7°C (44.6°F). Weather in March »Weather in April
April in Llanllyfni, United Kingdom, is a fresh spring month, with an average temperature varying between 10.6°C (51.1°F) and 6.3°C (43.3°F). The weather during April records an average high-temperature of a cool 10.6°C (51.1°F), closely mirroring the preceding month. Weather in April »Weather in May
The last month of the spring, May, is another cool month in Llanllyfni, United Kingdom, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 12.9°C (55.2°F). May is marked by an average high-temperature of a still fresh 12.9°C (55.2°F), almost identical to the preceding month. Weather in May »Weather in June
June, the first month of the summer in Llanllyfni, is a mild month, with an average temperature fluctuating between 10.6°C (51.1°F) and 15.2°C (59.4°F). Llanllyfni's June reports an average high-temperature of a refreshing 15.2°C (59.4°F), exhibiting a minor difference from May. Weather in June »Weather in July
July in Llanllyfni, United Kingdom, is a refreshing summer month, with an average temperature fluctuating between 12.6°C (54.7°F) and 16.7°C (62.1°F). Llanllyfni notes the warmest temperatures in July, with a high average of 16.7°C (62.1°F) and a low of 12.6°C (54.7°F). Weather in July »Weather in August
August, the last month of the summer in Llanllyfni, is another comfortable month, with an average temperature ranging between max 16.6°C (61.9°F) and min 13.2°C (55.8°F). The commencement of August introduces an average high-temperature of a still comfortable 16.6°C (61.9°F), closely mirroring the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Llanllyfni, is still a refreshing month, with an average temperature fluctuating between 11.7°C (53.1°F) and 15.1°C (59.2°F). The arrival of September denotes a barely perceptible change in the average high-temperatures to a mild 15.1°C (59.2°F) from August's 16.6°C (61.9°F). Weather in September »Weather in October
October, the same as September, in Llanllyfni, United Kingdom, is another refreshing autumn month, with an average temperature ranging between min 10°C (50°F) and max 13.3°C (55.9°F). October brings an average high-temperature of a still refreshing 13.3°C (55.9°F), showing a slight difference from September's 15.1°C (59.2°F). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Llanllyfni, United Kingdom, with an average temperature ranging between min 7.3°C (45.1°F) and max 9.9°C (49.8°F). The arrival of November suggests a slight decrease in the average high-temperature, moving from a mild 13.3°C (55.9°F) in October to a chilly 9.9°C (49.8°F). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Llanllyfni, United Kingdom, with an average temperature fluctuating between 8.5°C (47.3°F) and 5.8°C (42.4°F). Entering December, the average high-temperature is recorded at a still frosty 8.5°C (47.3°F), exhibiting a minimal shift from November's 9.9°C (49.8°F). Weather in December »Updated: Feb 8, 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
Throughout the year, in Llanllyfni, there are 236.8 rainfall days, and 754mm (29.69") of precipitation is accumulated.
Months with snowfall in Llanllyfni, United Kingdom, are January through April, November and December.
Throughout the year, in Llanllyfni, there are 8.8 snowfall days, and 58mm (2.28") of snow is accumulated.
The months with the lowest UV index in Llanllyfni, United Kingdom, are January through March, November and December, with an average maximum UV index of 2.
February is the coldest month of the year, registering average temperatures as high as 7°C (44.6°F) and as low as 4.3°C (39.7°F).
February is the month with the most snowfall in Llanllyfni. Snow falls for 2.9 days and accumulates 19mm (0.75") of snow.
With an average relative humidity of 81%, April is the least humid month in Llanllyfni.
May is the month with the least rainfall in Llanllyfni. Rain falls for 16.8 days and accumulates 37mm (1.46") of precipitation.
In Llanllyfni, snow does not fall in May through October.
The month with the most sunshine is May, with an average of 7.9h of sunshine.
May through September, with an average maximum UV index of 4, are months with the highest UV index in Llanllyfni, United Kingdom.
With an average of 16h and 54min of daylight, June has the longest days of the year in Llanllyfni, United Kingdom.
The temperatures in Llanllyfni reach their highest averages in July, with highs of 16.7°C (62.1°F) and lows of 12.6°C (54.7°F).
August is the most humid month in Llanllyfni, with an average relative humidity of 86%.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Llanllyfni, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
November is the month with the most rainfall in Llanllyfni. Rain falls for 22.5 days and accumulates 87mm (3.43") of precipitation.
With an average of 7h and 42min of daylight, December has the shortest days of the year.
With an average of 3.4h of sunshine, December has the least sunshine of the year in Llanllyfni, United Kingdom.
Average temperature
Llanllyfni, United Kingdom
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is February (7°C).
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure
Llanllyfni, United Kingdom
- Average pressure in January:
1012.3mbar - Average pressure in February:
1011.9mbar - Average pressure in March:
1014.5mbar - Average pressure in April:
1015mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1015.4mbar
- Average pressure in July:
1014.2mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1015.7mbar - Average pressure in October:
1013.5mbar - Average pressure in November:
1008.9mbar - Average pressure in December:
1011.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed
Llanllyfni, United Kingdom
- Average wind speed in January:
23.8km/h - Average wind speed in February:
23.2km/h - Average wind speed in March:
19.9km/h - Average wind speed in April:
16.6km/h - Average wind speed in May:
16.8km/h - Average wind speed in June:
15.1km/h
- Average wind speed in July:
15.5km/h - Average wind speed in August:
17.7km/h - Average wind speed in September:
18.7km/h - Average wind speed in October:
20.5km/h - Average wind speed in November:
22.9km/h - Average wind speed in December:
25.3km/h
The windiest month (with the highest average wind speed) is December (25.3km/h).
The calmest month (with the lowest average wind speed) is June (15.1km/h).
Average humidity
Llanllyfni, United Kingdom
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall
Llanllyfni, United Kingdom
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days
Llanllyfni, United Kingdom
- Average rainfall days in January:
21.4 days - Average rainfall days in February:
18.1 days - Average rainfall days in March:
17.5 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
20.8 days - Average rainfall days in August:
23.6 days - Average rainfall days in September:
19 days - Average rainfall days in October:
20.6 days - Average rainfall days in November:
22.5 days - Average rainfall days in December:
23.3 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is April (16.3 days).
Average snowfall
Llanllyfni, United Kingdom
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Llanllyfni, United Kingdom
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
2.9 days - Average snowfall days in March:
1.3 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:
0.4 days - Average snowfall days in December:
1.7 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Llanllyfni, United Kingdom
- 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 42min
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 42min).
- Average sunshine in January:
3h and 36min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 36min - Average sunshine in May:
7h and 54min - Average sunshine in June:
7h and 48min
- Average sunshine in July:
7h and 18min - Average sunshine in August:
7h and 6min - Average sunshine in September:
6h and 12min - Average sunshine in October:
4h and 6min - Average sunshine in November:
3h and 42min - Average sunshine in December:
3h and 24min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days
Llanllyfni, United Kingdom
- Average sunshine days in January:
6.1 days - Average sunshine days in February:
6.6 days - Average sunshine days in March:
10.5 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
7.7 days - Average sunshine days in August:
4.9 days - Average sunshine days in September:
7.7 days - Average sunshine days in October:
6.7 days - Average sunshine days in November:
5 days - Average sunshine days in December:
4.2 days
The month with the most sunshine days is April (11.4 days).
The month with the least sunshine days is December (4.2 days).
Average UV index
Llanllyfni, United Kingdom
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Llanllyfni, United Kingdom
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility
Llanllyfni, United Kingdom
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (9km).
