5 Day Forecast For Llanstephan & Tywi Estuary Beach
Our 5 day weather forecast for Carmarthen updated throughout the day, making it ideal for planning leisure activities, travel and events. Read more about our weather forecasts.
On Friday, August 22, 2025. It will be a mild day, with temperatures reaching around 22.19°C. Today is expected to be a dry day, with a very low chance of rain. Light winds are expected.
3am
scattered clouds
7.89°C (46.20°F)
Wind speed: 4.34 mph / 6.98 kph
Wind direction: (30.00°, NNE)
Humidity: 87.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
6am
scattered clouds
9.38°C (48.88°F)
Wind speed: 3.51 mph / 5.65 kph
Wind direction: (54.00°, NE)
Humidity: 85.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
9am
broken clouds
14.22°C (57.60°F)
Wind speed: 4.27 mph / 6.88 kph
Wind direction: (356.00°, N)
Humidity: 67.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.18 in / 1022.00 mb
Precipitation: 0.00 in / 0.00 mm
Noon
broken clouds
20.15°C (68.27°F)
Wind speed: 7.14 mph / 11.48 kph
Wind direction: (279.00°, W)
Humidity: 52.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.18 in / 1022.00 mb
Precipitation: 0.00 in / 0.00 mm
3pm
few clouds
22.19°C (71.94°F)
Wind speed: 7.65 mph / 12.31 kph
Wind direction: (287.00°, WNW)
Humidity: 52.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
6pm
few clouds
18.10°C (64.58°F)
Wind speed: 7.43 mph / 11.95 kph
Wind direction: (340.00°, NNW)
Humidity: 58.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.12 in / 1020.00 mb
Precipitation: 0.00 in / 0.00 mm
9pm
overcast clouds
12.45°C (54.41°F)
Wind speed: 4.23 mph / 6.80 kph
Wind direction: (3.00°, N)
Humidity: 85.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
On Saturday, August 23, 2025. It will be a mild day, with temperatures reaching around 20.65°C. Today is expected to be a dry day, with a very low chance of rain. Light winds are expected.
Midnight
overcast clouds
11.82°C (53.28°F)
Wind speed: 3.85 mph / 6.19 kph
Wind direction: (19.00°, NNE)
Humidity: 88.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
3am
overcast clouds
11.99°C (53.58°F)
Wind speed: 2.89 mph / 4.64 kph
Wind direction: (37.00°, NE)
Humidity: 88.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.15 in / 1021.00 mb
Precipitation: 0.00 in / 0.00 mm
6am
overcast clouds
13.75°C (56.75°F)
Wind speed: 3.33 mph / 5.36 kph
Wind direction: (78.00°, ENE)
Humidity: 82.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.12 in / 1020.00 mb
Precipitation: 0.00 in / 0.00 mm
9am
overcast clouds
17.85°C (64.13°F)
Wind speed: 2.28 mph / 3.67 kph
Wind direction: (174.00°, S)
Humidity: 65.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.12 in / 1020.00 mb
Precipitation: 0.00 in / 0.00 mm
Noon
overcast clouds
20.65°C (69.17°F)
Wind speed: 5.46 mph / 8.78 kph
Wind direction: (216.00°, SW)
Humidity: 57.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.12 in / 1020.00 mb
Precipitation: 0.00 in / 0.00 mm
3pm
overcast clouds
19.89°C (67.80°F)
Wind speed: 4.27 mph / 6.88 kph
Wind direction: (260.00°, W)
Humidity: 61.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.09 in / 1019.00 mb
Precipitation: 0.00 in / 0.00 mm
6pm
overcast clouds
19.84°C (67.71°F)
Wind speed: 5.17 mph / 8.32 kph
Wind direction: (1.00°, N)
Humidity: 64.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
9pm
scattered clouds
14.74°C (58.53°F)
Wind speed: 5.86 mph / 9.43 kph
Wind direction: (34.00°, NE)
Humidity: 85.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
On Sunday, August 24, 2025. It's going to be quite a warm day, with temperatures reaching 24.19°C. Today is expected to be a dry day, with a very low chance of rain. Light winds are expected.
Midnight
scattered clouds
13.90°C (57.02°F)
Wind speed: 5.08 mph / 8.17 kph
Wind direction: (71.00°, ENE)
Humidity: 85.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
3am
few clouds
13.38°C (56.08°F)
Wind speed: 5.10 mph / 8.21 kph
Wind direction: (117.00°, ESE)
Humidity: 88.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.03 in / 1017.00 mb
Precipitation: 0.00 in / 0.00 mm
6am
broken clouds
12.73°C (54.91°F)
Wind speed: 5.70 mph / 9.18 kph
Wind direction: (119.00°, ESE)
Humidity: 89.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
9am
overcast clouds
18.69°C (65.64°F)
Wind speed: 12.50 mph / 20.12 kph
Wind direction: (153.00°, SSE)
Humidity: 66.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
Noon
broken clouds
22.11°C (71.80°F)
Wind speed: 11.99 mph / 19.30 kph
Wind direction: (168.00°, SSE)
Humidity: 50.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
3pm
scattered clouds
24.19°C (75.54°F)
Wind speed: 10.51 mph / 16.92 kph
Wind direction: (177.00°, S)
Humidity: 40.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.03 in / 1017.00 mb
Precipitation: 0.00 in / 0.00 mm
6pm
few clouds
22.70°C (72.86°F)
Wind speed: 7.09 mph / 11.41 kph
Wind direction: (148.00°, SSE)
Humidity: 45.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.03 in / 1017.00 mb
Precipitation: 0.00 in / 0.00 mm
9pm
clear sky
15.60°C (60.08°F)
Wind speed: 6.82 mph / 10.98 kph
Wind direction: (138.00°, SE)
Humidity: 73.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
On Monday, August 25, 2025. It's going to be quite a warm day, with temperatures reaching 24.56°C. Today is expected to be a dry day, with a very low chance of rain. Light to moderate winds are expected.
Midnight
scattered clouds
14.79°C (58.62°F)
Wind speed: 5.37 mph / 8.64 kph
Wind direction: (145.00°, SE)
Humidity: 76.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.06 in / 1018.00 mb
Precipitation: 0.00 in / 0.00 mm
3am
overcast clouds
13.56°C (56.41°F)
Wind speed: 4.61 mph / 7.42 kph
Wind direction: (130.00°, SE)
Humidity: 74.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.03 in / 1017.00 mb
Precipitation: 0.00 in / 0.00 mm
6am
overcast clouds
14.78°C (58.60°F)
Wind speed: 5.06 mph / 8.14 kph
Wind direction: (122.00°, ESE)
Humidity: 66.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 30.00 in / 1016.00 mb
Precipitation: 0.00 in / 0.00 mm
9am
overcast clouds
20.61°C (69.10°F)
Wind speed: 12.24 mph / 19.69 kph
Wind direction: (145.00°, SE)
Humidity: 45.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.97 in / 1015.00 mb
Precipitation: 0.00 in / 0.00 mm
Noon
overcast clouds
24.56°C (76.21°F)
Wind speed: 15.10 mph / 24.30 kph
Wind direction: (157.00°, SSE)
Humidity: 37.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.91 in / 1013.00 mb
Precipitation: 0.00 in / 0.00 mm
3pm
broken clouds
23.62°C (74.52°F)
Wind speed: 12.75 mph / 20.52 kph
Wind direction: (210.00°, SSW)
Humidity: 45.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.85 in / 1011.00 mb
Precipitation: 0.00 in / 0.00 mm
6pm
broken clouds
19.38°C (66.88°F)
Wind speed: 9.98 mph / 16.06 kph
Wind direction: (221.00°, SW)
Humidity: 64.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.83 in / 1010.00 mb
Precipitation: 0.00 in / 0.00 mm
9pm
broken clouds
14.64°C (58.35°F)
Wind speed: 6.20 mph / 9.97 kph
Wind direction: (123.00°, ESE)
Humidity: 92.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.80 in / 1009.00 mb
Precipitation: 0.00 in / 0.00 mm
On Tuesday, August 26, 2025. It will be a mild day, with temperatures reaching around 19.54°C. A light shower is possible. Moderate winds are expected.
Midnight
broken clouds
16.45°C (61.61°F)
Wind speed: 9.51 mph / 15.30 kph
Wind direction: (167.00°, SSE)
Humidity: 84.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.77 in / 1008.00 mb
Precipitation: 0.00 in / 0.00 mm
3am
light rain
15.48°C (59.86°F)
Wind speed: 9.28 mph / 14.94 kph
Wind direction: (176.00°, S)
Humidity: 97.00%
Visibility: 3.21 miles / 5.17 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.03 in / 0.71 mm
6am
light rain
15.26°C (59.47°F)
Wind speed: 7.87 mph / 12.67 kph
Wind direction: (227.00°, SW)
Humidity: 95.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.04 in / 0.90 mm
9am
light rain
17.58°C (63.64°F)
Wind speed: 14.16 mph / 22.79 kph
Wind direction: (244.00°, WSW)
Humidity: 75.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.01 in / 0.21 mm
Noon
light rain
19.54°C (67.17°F)
Wind speed: 18.86 mph / 30.35 kph
Wind direction: (226.00°, SW)
Humidity: 60.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.01 in / 0.17 mm
3pm
light rain
19.18°C (66.52°F)
Wind speed: 19.17 mph / 30.85 kph
Wind direction: (226.00°, SW)
Humidity: 60.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.01 in / 0.23 mm
6pm
scattered clouds
17.00°C (62.60°F)
Wind speed: 14.47 mph / 23.29 kph
Wind direction: (232.00°, SW)
Humidity: 69.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.00 in / 0.00 mm
9pm
light rain
13.36°C (56.05°F)
Wind speed: 8.37 mph / 13.46 kph
Wind direction: (222.00°, SW)
Humidity: 91.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.71 in / 1006.00 mb
Precipitation: 0.01 in / 0.15 mm
On Wednesday, August 27, 2025. It will be a mild day, with temperatures reaching around 12.95°C. Today is expected to be a dry day, with a very low chance of rain. Light winds are expected.
Midnight
light rain
12.95°C (55.31°F)
Wind speed: 6.93 mph / 11.16 kph
Wind direction: (218.00°, SW)
Humidity: 92.00%
Visibility: 6.21 miles / 10.00 km
Pressure: 29.68 in / 1005.00 mb
Precipitation: 0.02 in / 0.48 mm