Climate and monthly weather forecastAlltwen, United Kingdom
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Alltwen, United Kingdom, with an average temperature ranging between max 7.3°C (45.1°F) and min 3.9°C (39°F). Alltwen's coldest period falls in January and February, when the average high-temperatures ascend to 7.3°C (45.1°F). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Alltwen, United Kingdom, with an average temperature varying between 7.3°C (45.1°F) and 3.8°C (38.8°F). The months of January and February see the lowest levels of Alltwen's temperatures, averaging a high of 7.3°C (45.1°F). Weather in February »Weather in March
March, the first month of the spring in Alltwen, is also a frosty month, with an average temperature varying between 9.4°C (48.9°F) and 4°C (39.2°F). Alltwen registers an average high-temperature of a still frosty 9.4°C (48.9°F) with the arrival of March, showing minor deviation from the preceding month. Weather in March »Weather in April
April in Alltwen, United Kingdom, is a cool spring month, with temperature in the range of an average low of 5.6°C (42.1°F) and an average high of 12°C (53.6°F). Alltwen's April reports an average high-temperature of a cool 12°C (53.6°F), exhibiting a minor difference from March. Weather in April »Weather in May
May, the last month of the spring in Alltwen, is a refreshing month, with an average temperature ranging between min 8°C (46.4°F) and max 14.2°C (57.6°F). As May takes its course, Alltwen's average high-temperature registers at a moderate 14.2°C (57.6°F), closely aligning with the preceding month. Weather in May »Weather in June
June, the first month of the summer in Alltwen, is an enjoyable month, with an average temperature ranging between min 10.7°C (51.3°F) and max 16.6°C (61.9°F). June registers an average high-temperature of a comfortable 16.6°C (61.9°F), slightly varied from May's 14.2°C (57.6°F). Weather in June »Weather in July
July, the same as June, is another comfortable summer month in Alltwen, United Kingdom, with temperature in the range of an average low of 12.7°C (54.9°F) and an average high of 18.2°C (64.8°F). Alltwen's temperatures peak on average in July, reaching 18.2°C (64.8°F) at their highest and 12.7°C (54.9°F) at their lowest. Weather in July »Weather in August
The last month of the summer, August, is another comfortable month in Alltwen, United Kingdom, with temperature in the range of an average low of 12.9°C (55.2°F) and an average high of 17.9°C (64.2°F). The shift into August uncovers an average high-temperature of a still enjoyable 17.9°C (64.2°F), subtly different from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Alltwen, is also an enjoyable month, with temperature in the range of an average low of 11.3°C (52.3°F) and an average high of 16.4°C (61.5°F). Alltwen, United Kingdom, experiences an average high-temperature of a still refreshing 16.4°C (61.5°F) in September, marking an insignificant shift from 17.9°C (64.2°F) in August. Weather in September »Weather in October
October, like September, is another mild autumn month in Alltwen, United Kingdom, with temperature in the range of an average low of 9.5°C (49.1°F) and an average high of 13.5°C (56.3°F). Alltwen experiences an average high-temperature of a still refreshing 13.5°C (56.3°F) in October, marking an insignificant shift from 16.4°C (61.5°F) in September. Weather in October »Weather in November
November, the last month of the autumn in Alltwen, is also a fresh month, with an average temperature varying between 6.7°C (44.1°F) and 10.3°C (50.5°F). Alltwen's weather in November involves a mild decrease in the average high-temperature, moving down slightly from October's mild 13.5°C (56.3°F) to a cool 10.3°C (50.5°F). Weather in November »Weather in December
December, the first month of the winter in Alltwen, is still a chilly month, with an average temperature fluctuating between 5.2°C (41.4°F) and 8.3°C (46.9°F). The transition into December is marked with an average high-temperature of a chilly 8.3°C (46.9°F), showing an insignificant shift from November's 10.3°C (50.5°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
The months of January and February are noted for their lowest temperatures, with an average high-temperature of 7.3°C (45.1°F).
The months with the highest humidity in Alltwen, United Kingdom, are January and December, with an average relative humidity of 87%.
Throughout the year, in Alltwen, United Kingdom, there are 181.3 rainfall days, and 568mm (22.36") of precipitation is accumulated.
January through March and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 2 days and accumulates 12mm (0.47") of snow.
In Alltwen, United Kingdom, during the entire year, snow falls for 5.4 days and aggregates up to 28mm (1.1") of snow.
The month with the least sunshine is January, with an average of 3.7h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
With an average relative humidity of 81%, April is the least humid month in Alltwen, United Kingdom.
In Alltwen, United Kingdom, snow does not fall in April through November.
The month with the least rainfall in Alltwen is May, when the rain falls for 14.1 days and typically collects 31mm (1.22") of precipitation.
The month with the most sunshine is May, with an average of 8.1h of sunshine.
The months with the highest UV index are May through September, with an average maximum UV index of 4.
June has the longest days of the year in Alltwen, United Kingdom, with an average of 16h and 36min of daylight.
Alltwen registers the average highest temperatures during July, with peaks of 18.2°C (64.8°F) and lows of 12.7°C (54.9°F).
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Alltwen, United Kingdom, 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.
The months with the most rainfall are November and December, with an average 66mm (2.6") of precipitation.
December has the shortest days of the year, with an average of 7h and 54min of daylight.
Average temperature
Alltwen, United Kingdom
The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).
Average pressure
Alltwen, United Kingdom
- Average pressure in January:
1013.7mbar - Average pressure in February:
1013.2mbar - Average pressure in March:
1015.2mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1015.9mbar
- Average pressure in July:
1015.1mbar - Average pressure in August:
1014.5mbar - Average pressure in September:
1016.7mbar - Average pressure in October:
1014.4mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1013.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed
Alltwen, United Kingdom
- Average wind speed in January:
21.9km/h - Average wind speed in February:
22.3km/h - Average wind speed in March:
19.6km/h - Average wind speed in April:
16.3km/h - Average wind speed in May:
15.8km/h - Average wind speed in June:
14.9km/h
- Average wind speed in July:
15.1km/h - Average wind speed in August:
16.2km/h - Average wind speed in September:
16.8km/h - Average wind speed in October:
18.9km/h - Average wind speed in November:
21.2km/h - Average wind speed in December:
22.4km/h
The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).
Average humidity
Alltwen, United Kingdom
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (81%).
Average rainfall
Alltwen, United Kingdom
The wettest months (with the highest rainfall) are November and December (66mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days
Alltwen, United Kingdom
- Average rainfall days in January:
16.1 days - Average rainfall days in February:
13.3 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
16 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
17 days - Average rainfall days in December:
16.9 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (12.6 days).
Average snowfall
Alltwen, United Kingdom
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Alltwen, United Kingdom
- Average snowfall days in January:
2 days - Average snowfall days in February:
1.7 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0.1 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:
1.1 days
The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Alltwen, United Kingdom
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 6min - Average sunshine in June:
7h and 42min
- Average sunshine in July:
7h and 48min - Average sunshine in August:
7h and 18min - Average sunshine in September:
6h and 48min - Average sunshine in October:
4h and 18min - Average sunshine in November:
3h and 54min - Average sunshine in December:
3h and 48min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Alltwen, United Kingdom
- Average sunshine days in January:
10.5 days - Average sunshine days in February:
11.7 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
14 days - Average sunshine days in June:
11 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
10.7 days - Average sunshine days in December:
11.1 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is July (10.3 days).
Average UV index
Alltwen, 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, November and December (UV index 2).
Average cloud cover
Alltwen, United Kingdom
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 47).
Average visibility
Alltwen, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
