Climate and monthly weather forecastLlandeilo, United Kingdom
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Llandeilo, United Kingdom, with an average temperature ranging between min 1.6°C (34.9°F) and max 5.8°C (42.4°F). January, having an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of 1.6°C (34.9°F), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Llandeilo, is a frosty month, with temperature in the range of an average high of 6.3°C (43.3°F) and an average low of 1.5°C (34.7°F). With February's advent, Llandeilo, United Kingdom, sees an average high-temperature of a frosty 6.3°C (43.3°F), subtly shifted from January's 5.8°C (42.4°F). Weather in February »Weather in March
The first month of the spring, March, is also a frosty month in Llandeilo, United Kingdom, with an average temperature ranging between min 2.1°C (35.8°F) and max 8.6°C (47.5°F). Llandeilo's shift into March sets the average high-temperature at a still chilly 8.6°C (47.5°F), a figure that deviates only slightly from February's 6.3°C (43.3°F). Weather in March »Weather in April
April in Llandeilo, United Kingdom, is a cool spring month, with an average temperature fluctuating between 11.6°C (52.9°F) and 3.7°C (38.7°F). The commencement of April sees a minor shift in the average high-temperature, moving from a chilly 8.6°C (47.5°F) in March to a fresh 11.6°C (52.9°F). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Llandeilo, United Kingdom, with an average temperature ranging between min 6.2°C (43.2°F) and max 14°C (57.2°F). May's commencement is accompanied by an average high-temperature of a mild 14°C (57.2°F), diverging marginally from April's 11.6°C (52.9°F). Weather in May »Weather in June
The first month of the summer, June, is a comfortable month in Llandeilo, United Kingdom, with an average temperature ranging between max 16.4°C (61.5°F) and min 8.8°C (47.8°F). As May transitions into June, the average high-temperature rests at a comfortable 16.4°C (61.5°F), maintaining a close resemblance to the previous month. Weather in June »Weather in July
July, like June, in Llandeilo, United Kingdom, is another enjoyable summer month, with an average temperature fluctuating between 10.5°C (50.9°F) and 17.8°C (64°F). In Llandeilo, the peak average temperatures are observed in July, with a high of 17.8°C (64°F) and a low of 10.5°C (50.9°F). Weather in July »Weather in August
August, the last month of the summer in Llandeilo, is also an enjoyable month, with an average temperature ranging between min 10.8°C (51.4°F) and max 17.1°C (62.8°F). August's onset brings an average high-temperature of a still comfortable 17.1°C (62.8°F), showing a minute difference from July's 17.8°C (64°F). Weather in August »Weather in September
September, the first month of the autumn in Llandeilo, is still a mild month, with temperature in the range of an average low of 8.8°C (47.8°F) and an average high of 15.5°C (59.9°F). Llandeilo, United Kingdom, experiences a transition to a still refreshing 15.5°C (59.9°F) in average high-temperatures with the arrival of September, not greatly differing from August's 17.1°C (62.8°F). Weather in September »Weather in October
October, the same as September, is a cool autumn month in Llandeilo, United Kingdom, with an average temperature ranging between min 7.2°C (45°F) and max 12.4°C (54.3°F). Transition into October subtly marks a drop in the average high-temperature, moderately moving from a refreshing 15.5°C (59.9°F) in September to a fresh 12.4°C (54.3°F). Weather in October »Weather in November
November, the last month of the autumn in Llandeilo, is also a frosty month, with an average temperature varying between 8.6°C (47.5°F) and 4.4°C (39.9°F). A subtle shift in Llandeilo's weather is observed as October turns into November, with the average high temperature reducing from a cool 12.4°C (54.3°F) to a frosty 8.6°C (47.5°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Llandeilo, United Kingdom, with temperature in the range of an average high of 6.7°C (44.1°F) and an average low of 2.8°C (37°F). Llandeilo's entry into December measures an average high-temperature of a still chilly 6.7°C (44.1°F), closely parallel to the preceding month. 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
With an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of 1.6°C (34.9°F), January is the coldest month in Llandeilo.
In Llandeilo, United Kingdom, during the entire year, the rain falls for 165.1 days and collects up to 406mm (15.98") of precipitation.
Months with snowfall are January through April, November and December.
In Llandeilo, United Kingdom, during the entire year, snow falls for 14.6 days and aggregates up to 137mm (5.39") of snow.
With an average of 3.1h of sunshine, January has the least sunshine of the year in Llandeilo.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
April and May, with an average relative humidity of 84%, are the least humid months in Llandeilo.
April and May, with an average of 6.6h of sunshine, are months with the most sunshine in Llandeilo.
In Llandeilo, snow does not fall in May through October.
May through August, with an average maximum UV index of 4, are months with the highest UV index in Llandeilo.
The months with the most rainfall are June and November, with an average 45mm (1.77") of precipitation.
June has the longest days of the year in Llandeilo, with an average of 16h and 36min of daylight.
In Llandeilo, July is known for its average highest temperatures, reaching a high of 17.8°C (64°F) and a low of 10.5°C (50.9°F).
September is the month with the least rainfall in Llandeilo. Rain falls for 10.7 days and accumulates 23mm (0.91") of precipitation.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Llandeilo, 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 month with the most snowfall is November, when snow falls for 1.1 days and typically aggregates up to 35mm (1.38") of snow.
With an average relative humidity of 92%, December is the most humid month in Llandeilo.
With an average of 7h and 54min of daylight, December has the shortest days of the year.
Average temperature
Llandeilo, United Kingdom
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (5.8°C).
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure
Llandeilo, United Kingdom
- Average pressure in January:
1013.5mbar - Average pressure in February:
1013mbar - Average pressure in March:
1015.1mbar - Average pressure in April:
1015.2mbar - Average pressure in May:
1016.6mbar - Average pressure in June:
1015.8mbar
- Average pressure in July:
1014.9mbar - Average pressure in August:
1014.3mbar - Average pressure in September:
1016.5mbar - Average pressure in October:
1014.3mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1013.4mbar
The month with the highest atmospheric pressure is May (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed
Llandeilo, United Kingdom
- Average wind speed in January:
18.1km/h - Average wind speed in February:
19km/h - Average wind speed in March:
17.3km/h - Average wind speed in April:
14.5km/h - Average wind speed in May:
14.2km/h - Average wind speed in June:
13km/h
- Average wind speed in July:
13km/h - Average wind speed in August:
13.7km/h - Average wind speed in September:
13.7km/h - Average wind speed in October:
15.5km/h - Average wind speed in November:
17km/h - Average wind speed in December:
18.5km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest months (with the lowest average wind speed) are June and July (13km/h).
Average humidity
Llandeilo, United Kingdom
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall
Llandeilo, United Kingdom
The wettest months (with the highest rainfall) are June and November (45mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days
Llandeilo, United Kingdom
- Average rainfall days in January:
13.2 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
15 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (10.4 days).
Average snowfall
Llandeilo, United Kingdom
The month with the highest snowfall is November (35mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Llandeilo, United Kingdom
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0.1 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:
1.1 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Llandeilo, 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 12min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 48min - 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 6min - Average sunshine in February:
3h and 12min - Average sunshine in March:
5h and 0min - Average sunshine in April:
6h and 36min - Average sunshine in May:
6h and 36min - Average sunshine in June:
6h and 18min
- Average sunshine in July:
6h and 18min - Average sunshine in August:
5h and 48min - Average sunshine in September:
5h and 36min - Average sunshine in October:
3h and 42min - Average sunshine in November:
3h and 12min - Average sunshine in December:
3h and 12min
The months with the most sunshine are April and May (Average sunshine: 6h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Llandeilo, United Kingdom
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
16 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
11.6 days - Average sunshine days in December:
12.4 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index
Llandeilo, 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
Llandeilo, United Kingdom
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility
Llandeilo, United Kingdom
The months with the highest visibility are February and March (9km).
The month with the lowest visibility is August (7km).
