Weather forecast for 10 days
Merthyr Mawr, United Kingdom

Weather forecast for the weekend

Saturday, 17. May

Partly Cloudy
5:17 am

9:04 pm
BST
Partly Cloudy
20°C / 10°C
  • Wind: 14km/h ESE
  • Humidity: 59%
  • Precip. probability: 5%
  • Precipitation: 0mm
  • UV index: 6
On Saturday, 17th of May, sunlight and clouds will take turns dominating the sky.
The temperature scale will run from a maximum of a delightful 20°C to a minimum of a crisp 10°C.
On Saturday, temperatures will feel warmer as the forecast mirrors June's average high rather than May's.
Sunrise will be at 5:17 am and sunset at 9:04 pm; the daylight will last for 15h and 47min.

Sunday, 18. May

Sunny
5:15 am

9:06 pm
BST
Sunny
21°C / 10°C
  • Wind: 9km/h SSW
  • Humidity: 56%
  • Precip. probability: 4%
  • Precipitation: 0mm
  • UV index: 6
On Sunday, 18th of May, sunshine is forecasted under mostly clear skies.
The temperature will vary between a maximum of an agreeable 21°C and a minimum of a crisp 10°C.
Forecast models suggest warmer conditions, with a peak that mirrors June's climate average rather than May's.
Sunrise will be at 5:15 am and sunset at 9:06 pm; the daylight will last for 15h and 50min.

Frequently asked questions

What is the weather forecast for Merthyr Mawr for Saturday?
On Saturday, clouds will come and go, but expect bright periods in between.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 20°C, while the minimum temperature will be 10°C.
What is the weather forecast for Merthyr Mawr for Sunday?
On Sunday, sunshine and minimal clouds are in the outlook.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 21°C, while the lowest temperature will be 10°C.
What is the weather forecast for Merthyr Mawr for the next ten days?
In Merthyr Mawr, a combination of sunny, overcast and showery weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is expected on next Friday and Saturday in Merthyr Mawr. Next Saturday, with light precipitation of 4mm, will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 17°C and 21°C, while the minimum temperature will be between 8°C and 11°C.
What will be the warmest and the coldest days?
With a maximum temperature of 21°C, Sunday and Wednesday will be the warmest days. The coldest day will be next Saturday, with a maximum of 17°C.

Long-term weather forecast

Thu15.May
  • 19°C
  • 8°C
Mostly Sunny
Mostly Sunny
  • Wind: 9km/h SE
  • Humidity: 61%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0mm
  • 5:19 am 9:01 pm BST
Fri16.May
  • 20°C
  • 8°C
Sunny
Sunny
  • Wind: 13km/h ESE
  • Humidity: 55%
  • UV index: 6
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:18 am 9:03 pm BST
Sat17.May
  • 20°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Wind: 14km/h ESE
  • Humidity: 59%
  • UV index: 6
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:17 am 9:04 pm BST
Sun18.May
  • 21°C
  • 10°C
Sunny
Sunny
  • Wind: 9km/h SSW
  • Humidity: 56%
  • UV index: 6
  • Precip. probability: 4%
  • Precipitation: 0mm
  • 5:15 am 9:06 pm BST
Mon19.May
  • 20°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Wind: 16km/h E
  • Humidity: 57%
  • UV index: 6
  • Precip. probability: 16%
  • Precipitation: 0mm
  • 5:14 am 9:07 pm BST
Tue20.May
  • 20°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Wind: 13km/h NNE
  • Humidity: 59%
  • UV index: 6
  • Precip. probability: 16%
  • Precipitation: 0mm
  • 5:13 am 9:08 pm BST
Wed21.May
  • 21°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Wind: 15km/h N
  • Humidity: 54%
  • UV index: 6
  • Precip. probability: 7%
  • Precipitation: 0mm
  • 5:11 am 9:10 pm BST
Thu22.May
  • 20°C
  • 11°C
Partly Cloudy
Partly Cloudy
  • Wind: 15km/h S
  • Humidity: 58%
  • UV index: 6
  • Precip. probability: 7%
  • Precipitation: 2mm
  • 5:10 am 9:11 pm BST
Fri23.May
  • 18°C
  • 11°C
Showers
Showers
  • Wind: 17km/h WSW
  • Humidity: 64%
  • UV index: 4
  • Precip. probability: 40%
  • Precipitation: 2mm
  • 5:09 am 9:13 pm BST
Sat24.May
  • 17°C
  • 11°C
Showers
Showers
  • Wind: 19km/h W
  • Humidity: 70%
  • UV index: 4
  • Precip. probability: 38%
  • Precipitation: 4mm
  • 5:08 am 9:14 pm BST
For the next ten days, a combination of dry and sunny, dull and wet weather is anticipated.
Rainfall is predicted for next Friday and Saturday.
In the upcoming days, the highest temperature will range between 17°C and 21°C, while the overnight low will be nearly unchanged, as the lowest temperatures will remain in the range of 8°C to 11°C.
The warmest days will be Sunday and Wednesday, with a maximum of 21°C; expect the coldest day on next Saturday with a high of 17°C.
Updated: May 15, 2025 @ 03:06:36 UTC
Published by: Weather Atlas | About Us
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