Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
The shift into April finds Llanelli at an average high-temperature of a fresh 11.8°C (53.2°F), closely comparable to March's conditions. Llanelli anticipates an average minimum temperature of 6.3°C (43.3°F) in the month of April.Humidity
The least humid month is April, with an average relative humidity of 81%.Rainfall
In April, the rain falls for 15.1 days. Throughout April, 38mm (1.5") of precipitation is accumulated. Throughout the year, in Llanelli, United Kingdom, there are 219.6 rainfall days, and 745mm (29.33") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Llanelli.Sea temperature
In Llanelli, in April, the average water temperature is 9.7°C (49.5°F).Note: Swimming in 9.7°C (49.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in April in Llanelli is 13h and 55min.On the first day of April in Llanelli, sunrise is at 6:50 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:39 pm BST.
Sunshine
April and May, with an average of 8.2h of sunshine, are months with the most sunshine in Llanelli.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 3 during April, leads to the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Llanelli?
What is the least humid month in Llanelli?
What is the average humidity in April in Llanelli?
How many days does it rain in April in Llanelli?
When it does not snow in Llanelli?
Does it snow in Llanelli in April?
What is the water temperature in April in Llanelli?
What is the average length of the day in April in Llanelli?
When is the sunrise / sunset in April in Llanelli?
What are the months with the most sunshine in Llanelli?
How long on average sun shines in April in Llanelli?
How high is the UV index in April in Llanelli?
Average temperature in April
Llanelli, United Kingdom
- Average high temperature in April: 11.8°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in April: 6.3°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (4.5°C).
Average pressure in April
Llanelli, United Kingdom
- Average pressure in April: 1015.2mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in April
Llanelli, United Kingdom
- Average wind speed in April: 16.8km/h
The windiest month (with the highest average wind speed) is December (23.9km/h).
The calmest month (with the lowest average wind speed) is June (15.4km/h).
Average humidity in April
Llanelli, United Kingdom
- Average humidity in April: 81%
The months with the highest relative humidity are January, August, October, November and December (85%).
The month with the lowest relative humidity is April (81%).
Average rainfall in April
Llanelli, United Kingdom
- Average rainfall in April: 38mm
The wettest month (with the highest rainfall) is December (84mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in April
Llanelli, United Kingdom
- Average rainfall days in April: 15.1 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is April (15.1 days).
Average snowfall in April
Llanelli, United Kingdom
- Average snowfall in April: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Llanelli, United Kingdom
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Llanelli, United Kingdom
- Average sea temperature in April: 9.7°C
The best month for swimming (with the highest average sea temperature) is August (16.8°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in April /
Average sunshine in April
Llanelli, United Kingdom
- Average daylight in April: 13h and 5min
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 April: 8h and 1min
The months with the most sunshine are April and May (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Llanelli, United Kingdom
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is May (12.8 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in April
Llanelli, United Kingdom
- Average UV index in April: 3
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 in April
Llanelli, United Kingdom
- Average cloud cover in April: 46
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 46).
Average visibility in April
Llanelli, United Kingdom
- Average visibility in April: 9km
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).
