As of 22:17 BST

Weather in Mynydd Marian

+17°

Mynydd Marian, Saturday, 8 August, 22:17

Overcast. Feels like 16°C. High 26°C, low 11°C.

Pressure1015 mb

Wind6 mph S

Humidity75%

Visibility6.2 mi

Dew point12°C

Detailed hourly forecast

Sun, 09+13 ° /23 °

0.2

+23 °

Mynydd Marian, Sunday, 9 August

Light rain. High 23°C, low 13°C.

Pressure1013 mb

Wind7 mph NW

Humidity56%

Visibility6.2 mi

Dew point12°C

Mon, 10+10 ° /19 °

0.4

+19 °

Mynydd Marian, Monday, 10 August

Light rain. High 19°C, low 10°C.

Pressure1022 mb

Wind7 mph NW

Humidity57%

Visibility6.2 mi

Dew point8°C

Tue, 11+10 ° /27 °

+27 °

Mynydd Marian, Tuesday, 11 August

Partly cloudy. High 27°C, low 10°C.

Pressure1023 mb

Wind2 mph SW

Humidity32%

Visibility6.2 mi

Dew point7°C

Wed, 12+16 ° /29 °

+29 °

Mynydd Marian, Wednesday, 12 August

Overcast. High 29°C, low 16°C.

Pressure1021 mb

Wind1 mph NW

Humidity29%

Visibility6.2 mi

Dew point8°C

Thu, 13+18 ° /27 °

+27 °

Mynydd Marian, Thursday, 13 August

Overcast. High 27°C, low 18°C.

Pressure1019 mb

Wind6 mph N

Humidity41%

Visibility—

Dew point11°C

Fri, 14+17 ° /24 °

0.2

+24 °

Mynydd Marian, Friday, 14 August

Light rain. High 24°C, low 17°C.

Pressure1017 mb

Wind7 mph NW

Humidity69%

Visibility—

Dew point17°C

Sat, 15+14 ° /19 °

+19 °

Mynydd Marian, Saturday, 15 August

Overcast. High 19°C, low 14°C.

Pressure1018 mb

Wind8 mph NW

Humidity70%

Visibility—

Dew point12°C

Sun, 16+13 ° /19 °

0.5

+19 °

Mynydd Marian, Sunday, 16 August

Light rain. High 19°C, low 13°C.

Pressure1019 mb

Wind7 mph NW

Humidity72%

Visibility—

Dew point14°C

Mon, 17+13 ° /17 °

3.9

+17 °

Mynydd Marian, Monday, 17 August

Light rain. High 17°C, low 13°C.

Pressure1009 mb

Wind14 mph W

Humidity96%

Visibility—

Dew point15°C

Tue, 18+13 ° /17 °

0.9

+17 °

Mynydd Marian, Tuesday, 18 August

Light rain. High 17°C, low 13°C.

Pressure1014 mb

Wind14 mph W

Humidity69%

Visibility—

Dew point10°C

Wed, 19+13 ° /18 °

1.4

+18 °

Mynydd Marian, Wednesday, 19 August

Light rain. High 18°C, low 13°C.

Pressure1014 mb

Wind14 mph W

Humidity56%

Visibility—

Dew point8°C

Thu, 20+11 ° /16 °

0.7

+16 °

Mynydd Marian, Thursday, 20 August

Light rain. High 16°C, low 11°C.

Pressure1014 mb

Wind10 mph W

Humidity73%

Visibility—

Dew point10°C

Fri, 21+10 ° /17 °

0.8

+17 °

Mynydd Marian, Friday, 21 August

Light rain. High 17°C, low 10°C.

Pressure1016 mb

Wind9 mph NW

Humidity61%

Visibility—

Dew point9°C

Sat, 22+10 ° /20 °

0.5

+20 °

Mynydd Marian, Saturday, 22 August

Light rain. High 20°C, low 10°C.

Pressure1021 mb

Wind8 mph NE

Humidity55%

Visibility—

Dew point9°C

Sun, 23+11 ° /22 °

+22 °

Mynydd Marian, Sunday, 23 August

Overcast. High 22°C, low 11°C.

Pressure1019 mb

Wind11 mph SW

Humidity45%

Visibility—

Dew point8°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 Mynydd Marian 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 Mynydd Marian 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.