Temperatures in May
It's cool to moderate in May in Llanelli with an average temperature of 16°C. Temperatures this month range from a low of 13°C to a high of 18°C. At night, you can expect temperatures between 8°C and 13°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Llanelli in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Llanelli with cool temperatures, averaging around 15°C during the day and nights close to 10°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 16°C, with nights close to 10°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of May
By the end of May, the average daytime temperature in Llanelli will be around 18°C, with nights close to 12°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Precipitation in May
In May, there is an average of 51 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the South.
The average precipitation chance is 32% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Llanelli. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Llanelli in May |
London | ||
|---|---|---|---|
 Average Temperature |
16°C | 18°C | |
 High Temp |
18°C | 21°C | |
| Low Temp |
13°C | 15°C | |
 Total Precipitation |
51 mm | 46 mm | |
| Rainy Days |
10 days | 8 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Llanelli?
Looking for sun and warm weather? Then May isn’t the best time to be in Llanelli. The temperature is too low this month for a warm stay.
Temperature records for Llanelli in May
With 25°C, Llanelli hit the highest temperature in the last 10 years in May 2017. The lowest daytime temperature in this month was 10°C in 2016. The extreme night temperatures ranged from a low of 3°C to a high of 17°C.
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Daily Temperature in May in Llanelli
This chart shows the average daily temperatures, both day and night, for each day in May in Llanelli, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Llanelli
The chart below shows the average daily precipitation in May for Llanelli, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 10 days of rain in Llanelli.
Daily UV Index in May in Llanelli
This chart shows the average daily UV index in May in Llanelli, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Llanelli Over the Years
This chart shows the average temperature in May in Llanelli, measured in degrees Celsius, over the past years.
Total Precipitation in May in Llanelli Over the Years
This chart shows the average precipitation in May in Llanelli, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Llanelli
Click on a specific day in May for detailed info on the typical weather on that day in Llanelli. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Llanelli
Have you been to Llanelli in May?
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Average Weather in Llanelli by Month
Click on a month below to see detailed weather info for Llanelli. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
