Today Hourly Tomorrow 3 days 5 days 7 days 10 days 15 days 20 days 30 days

15 Day Weather - Merthyr Tydfil

20/08/2026

16^oC

12^oC

Light rain

81%

15.627 km/h

20%

Chance of Rain

11^oC

Dew Point

81%

Humidity

93

Ozone

5.91 mm

Precipitation

100600 hPa

Pressure

North

Wind Direction

72%

Cloud Cover

06:08

Sunrise

20:08

Sunset

21/08/2026

15^oC

11^oC

Light rain

79%

12.923 km/h

26%

Chance of Rain

9^oC

Dew Point

79%

Humidity

91

Ozone

5.31 mm

Precipitation

101400 hPa

Pressure

North

Wind Direction

57%

Cloud Cover

06:08

Sunrise

20:08

Sunset

22/08/2026

14^oC

11^oC

Light rain

83%

18.25 km/h

49%

Chance of Rain

9^oC

Dew Point

83%

Humidity

101

Ozone

7.25 mm

Precipitation

102000 hPa

Pressure

North

Wind Direction

68%

Cloud Cover

06:08

Sunrise

20:08

Sunset

23/08/2026

16^oC

10^oC

Light rain

58%

17.461 km/h

6%

Chance of Rain

4^oC

Dew Point

58%

Humidity

106

Ozone

0.29 mm

Precipitation

102300 hPa

Pressure

North

Wind Direction

16%

Cloud Cover

06:08

Sunrise

20:08

Sunset

24/08/2026

17^oC

9^oC

Light rain

59%

17.284 km/h

19%

Chance of Rain

5^oC

Dew Point

59%

Humidity

103

Ozone

0.78 mm

Precipitation

101700 hPa

Pressure

North

Wind Direction

12%

Cloud Cover

06:08

Sunrise

20:08

Sunset

25/08/2026

15^oC

12^oC

Light rain

94%

22.756 km/h

96%

Chance of Rain

13^oC

Dew Point

94%

Humidity

94

Ozone

12.81 mm

Precipitation

100500 hPa

Pressure

North North East

Wind Direction

95%

Cloud Cover

06:08

Sunrise

20:08

Sunset

26/08/2026

15^oC

11^oC

Light rain

76%

15.08 km/h

33%

Chance of Rain

8^oC

Dew Point

76%

Humidity

109

Ozone

3.52 mm

Precipitation

100800 hPa

Pressure

North

Wind Direction

42%

Cloud Cover

06:08

Sunrise

20:08

Sunset

27/08/2026

15^oC

10^oC

Light rain

70%

18.861 km/h

7%

Chance of Rain

7^oC

Dew Point

70%

Humidity

95

Ozone

1.96 mm

Precipitation

100900 hPa

Pressure

North

Wind Direction

36%

Cloud Cover

06:08

Sunrise

20:08

Sunset

28/08/2026

15^oC

10^oC

Light rain

61%

18.861 km/h

29%

Chance of Rain

6^oC

Dew Point

61%

Humidity

108

Ozone

4.32 mm

Precipitation

101200 hPa

Pressure

North

Wind Direction

47%

Cloud Cover

06:08

Sunrise

20:08

Sunset

29/08/2026

15^oC

13^oC

Light rain

84%

25.411 km/h

45%

Chance of Rain

11^oC

Dew Point

84%

Humidity

97

Ozone

8.61 mm

Precipitation

100200 hPa

Pressure

North North East

Wind Direction

91%

Cloud Cover

06:08

Sunrise

20:08

Sunset

30/08/2026

14^oC

11^oC

Light rain

85%

24.156 km/h

34%

Chance of Rain

10^oC

Dew Point

85%

Humidity

105

Ozone

3.4 mm

Precipitation

100300 hPa

Pressure

North North East

Wind Direction

86%

Cloud Cover

06:08

Sunrise

20:08

Sunset

31/08/2026

13^oC

10^oC

Light rain

80%

20.954 km/h

18%

Chance of Rain

8^oC

Dew Point

80%

Humidity

90

Ozone

2.86 mm

Precipitation

100900 hPa

Pressure

North North East

Wind Direction

46%

Cloud Cover

06:08

Sunrise

20:08

Sunset

01/09/2026

16^oC

10^oC

Light rain

61%

16.238 km/h

19%

Chance of Rain

6^oC

Dew Point

61%

Humidity

105

Ozone

0.32 mm

Precipitation

101000 hPa

Pressure

North

Wind Direction

29%

Cloud Cover

06:09

Sunrise

20:09

Sunset

02/09/2026

11^oC

9^oC

Moderate rain

91%

30.996 km/h

89%

Chance of Rain

8^oC

Dew Point

91%

Humidity

110

Ozone

17.95 mm

Precipitation

99600 hPa

Pressure

North North East

Wind Direction

98%

Cloud Cover

06:09

Sunrise

19:09

Sunset

Tomorrow 3 days 5 days 7 days 10 days 20 days 30 days

Temperature & Rainfall Outlook for Merthyr Tydfil

Wed - 19

Thu - 20

Fri - 21

Sat - 22

Sun - 23

Mon - 24

Tue - 25

Wed - 26

Thu - 27

Fri - 28

Max Temperature

Min Temperature

weather365

2.34 mm

weather365

5.91 mm

weather365

5.31 mm

weather365

7.25 mm

weather365

0.29 mm

weather365

0.78 mm

weather365

12.81 mm

weather365

3.52 mm

weather365

1.96 mm

weather365

4.32 mm

Precipitation

Chance of Rain

Radar

weather365.com

Top Stories

Weather Elements Explained: The Essential Components of Our Climate

Weather model

Weather Elements Explained: The Essential Components of Our Climate

4014

0

4.8

18/08/2026

Learn about the main weather elements, including temperature, humidity, air pressure, wind, precipitation, UV index, and how they influence weather conditions.

What Is Graupel? Differences Between Graupel, Hail, and Sleet

Winter

What Is Graupel? Differences Between Graupel, Hail, and Sleet

2072

0

4.6

24/07/2026

Learn what is graupel and how to tell it apart from hail , snow, and sleet. Explore the science behind this winter weather phenomenon. Read the post now!

What Is A Nor'easter? Definitions, Weather Effects And Safety Tips

Winter

What Is A Nor'easter? Definitions, Weather Effects And Safety Tips

1981

0

5.0

01/04/2026

Discover what is a Nor'easter, its characteristics, typical formation areas, and how it affects weather across the Northeast and Mid-Atlantic. Learn safety tips.

Show more stories