Climate and monthly weather forecastTrefonen, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Trefonen, United Kingdom, with an average temperature fluctuating between 1°C (33.8°F) and 6.1°C (43°F). In Trefonen, January is the coldest month, with temperatures averaging a high of 6.1°C (43°F) and a low of 1°C (33.8°F). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Trefonen, United Kingdom, with an average temperature fluctuating between 6.8°C (44.2°F) and 1.2°C (34.2°F). February's arrival shows an average high-temperature of a still frosty 6.8°C (44.2°F), hardly different from the previous month. Weather in February »Weather in March
March, the first month of the spring in Trefonen, is also a frosty month, with an average temperature varying between 9.3°C (48.7°F) and 1.5°C (34.7°F). The onset of March brings with it an average high-temperature of a still chilly 9.3°C (48.7°F), showing a negligible variation from the month before. Weather in March »Weather in April
April in Trefonen, United Kingdom, is a cool spring month, with an average temperature ranging between max 12.3°C (54.1°F) and min 3.2°C (37.8°F). The start of April signals a slight increase in the average high-temperature, moving from a frosty 9.3°C (48.7°F) in March to a cool 12.3°C (54.1°F). Weather in April »Weather in May
May, the last month of the spring in Trefonen, is a refreshing month, with an average temperature fluctuating between 5.7°C (42.3°F) and 14.8°C (58.6°F). Upon the beginning of May, Trefonen's high-temperatures register at a refreshing 14.8°C (58.6°F), closely mirroring the preceding month. Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Trefonen, United Kingdom, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 17.3°C (63.1°F). Trefonen marks the start of June with an average high-temperature of a comfortable 17.3°C (63.1°F), hinting at a slight fluctuation from May's 14.8°C (58.6°F). Weather in June »Weather in July
July, the same as June, is another enjoyable summer month in Trefonen, United Kingdom, with an average temperature fluctuating between 19°C (66.2°F) and 10.3°C (50.5°F). July is the month when Trefonen, United Kingdom, experiences its warmest temperatures, averaging a high of 19°C (66.2°F) and a low of 10.3°C (50.5°F). Weather in July »Weather in August
August, the last month of the summer in Trefonen, is another comfortable month, with an average temperature ranging between max 18.5°C (65.3°F) and min 10.8°C (51.4°F). In August, Trefonen experiences a minor shift in meteorological conditions with average high-temperatures marked at a still enjoyable 18.5°C (65.3°F), closely mirroring the climate in July. Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Trefonen, United Kingdom, with an average temperature fluctuating between 16.4°C (61.5°F) and 8.5°C (47.3°F). The average high-temperature during September registers at a still comfortable 16.4°C (61.5°F), closely corresponding to the preceding month. Weather in September »Weather in October
October, like September, is a moderate autumn month in Trefonen, United Kingdom, with an average temperature varying between 13.2°C (55.8°F) and 6.7°C (44.1°F). As September shifts into October, a minor alteration in temperatures is observed, with average highs reducing from a comfortable 16.4°C (61.5°F) to a still refreshing 13.2°C (55.8°F). Weather in October »Weather in November
November, the last month of the autumn in Trefonen, is another chilly month, with an average temperature ranging between min 4.1°C (39.4°F) and max 8.8°C (47.8°F). The start of November comes with a small reduction in the average high-temperature, subtly receding from a moderate 13.2°C (55.8°F) in October to a chilly 8.8°C (47.8°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Trefonen, United Kingdom, with an average temperature ranging between min 2.4°C (36.3°F) and max 6.9°C (44.4°F). Trefonen experiences a minor change to a still frosty 6.9°C (44.4°F) in average high-temperature during December, closely reflecting November. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Trefonen, United Kingdom
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (6.1°C).
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure
Trefonen, United Kingdom
- Average pressure in January:
1012.8mbar - Average pressure in February:
1012.4mbar - Average pressure in March:
1014.7mbar - Average pressure in April:
1015.2mbar - Average pressure in May:
1016.3mbar - Average pressure in June:
1015.5mbar
- Average pressure in July:
1014.4mbar - Average pressure in August:
1013.7mbar - Average pressure in September:
1015.9mbar - Average pressure in October:
1014mbar - Average pressure in November:
1009.3mbar - Average pressure in December:
1012.5mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed
Trefonen, United Kingdom
- Average wind speed in January:
15.7km/h - Average wind speed in February:
16.5km/h - Average wind speed in March:
14.7km/h - Average wind speed in April:
12.5km/h - Average wind speed in May:
12.4km/h - Average wind speed in June:
11.3km/h
- Average wind speed in July:
11.4km/h - Average wind speed in August:
12.3km/h - Average wind speed in September:
12.2km/h - Average wind speed in October:
13.4km/h - Average wind speed in November:
14.6km/h - Average wind speed in December:
15.8km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is June (11.3km/h).
Average humidity
Trefonen, United Kingdom
The months with the highest relative humidity are November and December (91%).
The months with the lowest relative humidity are April and May (83%).
Average rainfall
Trefonen, United Kingdom
The wettest month (with the highest rainfall) is June (54mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days
Trefonen, United Kingdom
- Average rainfall days in January:
14.6 days - Average rainfall days in February:
13.6 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
19.8 days - Average rainfall days in August:
18.8 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
14.8 days - Average rainfall days in November:
17.2 days - Average rainfall days in December:
15.5 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (13.6 days).
Average snowfall
Trefonen, United Kingdom
The month with the highest snowfall is January (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Trefonen, United Kingdom
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
3 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.5 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:
0.5 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Trefonen, United Kingdom
- Average daylight in January:
8h and 18min - 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 48min - Average daylight in June:
16h and 48min
- Average daylight in July:
16h and 18min - 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 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 30min - Average sunshine in April:
6h and 42min - Average sunshine in May:
6h and 48min - Average sunshine in June:
6h and 36min
- Average sunshine in July:
7h and 0min - Average sunshine in August:
6h and 36min - Average sunshine in September:
6h and 18min - Average sunshine in October:
4h and 6min - Average sunshine in November:
3h and 42min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 7h and 0min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days
Trefonen, United Kingdom
- Average sunshine days in January:
10.7 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
12.6 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
8.9 days
- Average sunshine days in July:
7.2 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
10.9 days - Average sunshine days in October:
11 days - Average sunshine days in November:
8.4 days - Average sunshine days in December:
11 days
The month with the most sunshine days is March (12.6 days).
The month with the least sunshine days is July (7.2 days).
Average UV index
Trefonen, United Kingdom
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, March, November and December (UV index 2).
Average cloud cover
Trefonen, United Kingdom
The month with the most cloud cover is November (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility
Trefonen, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July and December (8km).
The months with the lowest visibility are August, September, October and November (7km).





