--- title: "10 Day Weather Forecast for Llanelli, Carmarthenshire - Sir Gaerfyrddin, GB" description: "Get the latest 10 day weather forecast for Llanelli, Carmarthenshire - Sir Gaerfyrddin, GB. Stay prepared with accurate and up-to-date weather information to plan your week ahead." location: "Llanelli, Carmarthenshire - Sir Gaerfyrddin, GB" canonical: "https://www.weatherbug.com/weather-forecast/10-day-weather/llanelli-carmarthenshire-sir-gaerfyrddin-uk" coordinates: ["51.69,-4.15"] temperature_units: "°F" last_updated: "2026-05-28T18:06:00.0000000Z" source: "WeatherBug" --- # 10 Day Weather Forecast for Llanelli, Carmarthenshire - Sir Gaerfyrddin, GB Get the latest 10-day weather forecast for Llanelli, Carmarthenshire - Sir Gaerfyrddin, GB, including day and night conditions, high and low temperatures, wind speed and direction and precipitation chances. Forecast issued on 2026-05-28T18:06:00+00:00. ## 10 Day Weather Forecast | Date | Day Forecast | Night Forecast | High °F | Low °F | | ---------- | ------------------------------------------------ |------------------------------------------------| -------: | -------: | | Thu, May 28 | | Partly cloudy. Low temperature around 54F. Dew point will be around 54F with an average humidity of 94%. Winds will be 7 mph from the SW. | | 54°F | | Fri, May 29 | Partly cloudy. High temperature around 68F. Dew point will be around 53F with an average humidity of 80%. Winds will be 9 mph from the W. | Mostly clear. Low temperature around 49F. Dew point will be around 50F with an average humidity of 91%. Winds will be 4 mph from the W. | 68°F | 49°F | | Sat, May 30 | Mostly cloudy. High temperature around 68F. Dew point will be around 50F with an average humidity of 63%. Winds will be 6 mph from the W. | Mostly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 56F. Dew point will be around 54F with an average humidity of 89%. Winds will be 8 mph from the W. | 68°F | 56°F | | Sun, May 31 | Mostly cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 62F. Dew point will be around 53F with an average humidity of 76%. Winds will be 13 mph from the W. | Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 56F. Dew point will be around 54F with an average humidity of 90%. Winds will be 10 mph from the SW. | 62°F | 56°F | | Mon, Jun 1 | Cloudy with likely rain. Chance of precipitation 85%. High temperature around 63F. Dew point will be around 56F with an average humidity of 84%. Winds will be 13 mph from the SW. | Mostly cloudy with likely rain. Chance of precipitation 85%. Low temperature around 56F. Dew point will be around 55F with an average humidity of 91%. Winds will be 11 mph from the SW. | 63°F | 56°F | | Tue, Jun 2 | Mostly cloudy with likely rain. Chance of precipitation 85%. High temperature around 64F. Dew point will be around 52F with an average humidity of 71%. Winds will be 16 mph from the W. | Mostly cloudy with probable rain. Chance of precipitation 80%. Low temperature around 55F. Dew point will be around 52F with an average humidity of 84%. Winds will be 10 mph from the W. | 64°F | 55°F | | Wed, Jun 3 | Partly cloudy with probable rain. Chance of precipitation 80%. High temperature around 63F. Dew point will be around 49F with an average humidity of 66%. Winds will be 12 mph from the W. | Mostly cloudy with likely rain. Chance of precipitation 85%. Low temperature around 53F. Dew point will be around 50F with an average humidity of 83%. Winds will be 10 mph from the W. | 63°F | 53°F | | Thu, Jun 4 | Mostly cloudy with a 90% chance for rain and thunderstorms. High temperature around 59F. Dew point will be around 49F with an average humidity of 75%. Winds will be 15 mph from the W. | Partly cloudy with probable rain. Chance of precipitation 70%. Low temperature around 52F. Dew point will be around 49F with an average humidity of 86%. Winds will be 11 mph from the W. | 59°F | 52°F | | Fri, Jun 5 | Mostly cloudy with probable rain. Chance of precipitation 80%. High temperature around 58F. Dew point will be around 48F with an average humidity of 74%. Winds will be 12 mph from the W. | Mostly cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 52F. Dew point will be around 49F with an average humidity of 84%. Winds will be 8 mph from the SW. | 58°F | 52°F | | Sat, Jun 6 | Cloudy with probable rain. Chance of precipitation 65%. High temperature around 61F. Dew point will be around 50F with an average humidity of 74%. Winds will be 10 mph from the SW. | Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 53F. Dew point will be around 50F with an average humidity of 84%. Winds will be 9 mph from the SW. | 61°F | 53°F | ## Source Information - Source: "https://www.weatherbug.com/weather-forecast/10-day-weather/llanelli-carmarthenshire-sir-gaerfyrddin-uk" - Last Updated: "2026-05-28T18:06:00+00:00"