As of 18:05 BST

Weather in Merthyr Cynog

+23°

Merthyr Cynog, Saturday, 8 August, 18:05

Overcast. Feels like 23°C. High 24°C, low 8°C.

Pressure1016 mb

Wind9 mph SW

Humidity42%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

Sun, 09+11 ° /25 °

+25 °

Merthyr Cynog, Sunday, 9 August

Overcast. High 25°C, low 11°C.

Pressure1014 mb

Wind9 mph W

Humidity33%

Visibility6.2 mi

Dew point6°C

Mon, 10+11 ° /25 °

+25 °

Merthyr Cynog, Monday, 10 August

Overcast. High 25°C, low 11°C.

Pressure1021 mb

Wind8 mph NW

Humidity32%

Visibility6.2 mi

Dew point4°C

Tue, 11+8 ° /28 °

+28 °

Merthyr Cynog, Tuesday, 11 August

Clear sky. High 28°C, low 8°C.

Pressure1024 mb

Wind10 mph SE

Humidity33%

Visibility6.2 mi

Dew point7°C

Wed, 12+11 ° /31 °

+31 °

Merthyr Cynog, Wednesday, 12 August

Overcast. High 31°C, low 11°C.

Pressure1022 mb

Wind10 mph S

Humidity22%

Visibility6.2 mi

Dew point4°C

Thu, 13+15 ° /32 °

+32 °

Merthyr Cynog, Thursday, 13 August

Clear sky. High 32°C, low 15°C.

Pressure1017 mb

Wind15 mph W

Humidity15%

Visibility—

Dew point1°C

Fri, 14+14 ° /26 °

0.2

+26 °

Merthyr Cynog, Friday, 14 August

Light rain. High 26°C, low 14°C.

Pressure1016 mb

Wind15 mph W

Humidity46%

Visibility—

Dew point12°C

Sat, 15+13 ° /21 °

0.6

+21 °

Merthyr Cynog, Saturday, 15 August

Light rain. High 21°C, low 13°C.

Pressure1017 mb

Wind8 mph NW

Humidity59%

Visibility—

Dew point12°C

Sun, 16+12 ° /23 °

0.2

+23 °

Merthyr Cynog, Sunday, 16 August

Light rain. High 23°C, low 12°C.

Pressure1014 mb

Wind14 mph W

Humidity41%

Visibility—

Dew point7°C

Mon, 17+10 ° /18 °

0.8

+18 °

Merthyr Cynog, Monday, 17 August

Light rain. High 18°C, low 10°C.

Pressure1013 mb

Wind17 mph NW

Humidity68%

Visibility—

Dew point11°C

Tue, 18+9 ° /17 °

0.3

+17 °

Merthyr Cynog, Tuesday, 18 August

Light rain. High 17°C, low 9°C.

Pressure1011 mb

Wind16 mph NW

Humidity63%

Visibility—

Dew point8°C

Wed, 19+9 ° /21 °

+21 °

Merthyr Cynog, Wednesday, 19 August

Overcast. High 21°C, low 9°C.

Pressure1013 mb

Wind14 mph W

Humidity43%

Visibility—

Dew point6°C

Thu, 20+10 ° /17 °

1.1

+17 °

Merthyr Cynog, Thursday, 20 August

Light rain. High 17°C, low 10°C.

Pressure1007 mb

Wind18 mph NW

Humidity84%

Visibility—

Dew point13°C

Fri, 21+8 ° /17 °

0.3

+17 °

Merthyr Cynog, Friday, 21 August

Light rain. High 17°C, low 8°C.

Pressure1014 mb

Wind18 mph NW

Humidity50%

Visibility—

Dew point6°C

Sat, 22+11 ° /18 °

0.7

+18 °

Merthyr Cynog, Saturday, 22 August

Light rain. High 18°C, low 11°C.

Pressure1014 mb

Wind26 mph W

Humidity48%

Visibility—

Dew point6°C

Sun, 23+10 ° /15 °

0.1

+15 °

Merthyr Cynog, Sunday, 23 August

Light rain. High 15°C, low 10°C.

Pressure1023 mb

Wind18 mph NW

Humidity55%

Visibility—

Dew point5°C

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Merthyr Cynog are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Merthyr Cynog since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.