As of 23:10 BST

Weather in Penllwyn

+18°Weather now

Penllwyn, Saturday, 8 August, 23:10

Overcast. Feels like 17°C. High 26°C, low 10°C.

Pressure1016 mb
Wind2 mph E
Humidity78%
Visibility6.2 mi
Dew point14°C
Sun, 09+13 ° /24 °0Overcast
+24 °Overcast

Penllwyn, Sunday, 9 August

Overcast. High 24°C, low 13°C.

Pressure1014 mb
Wind9 mph W
Humidity56%
Visibility6.2 mi
Dew point11°C
Mon, 10+11 ° /23 °0Overcast
+23 °Overcast

Penllwyn, Monday, 10 August

Overcast. High 23°C, low 11°C.

Pressure1022 mb
Wind11 mph NW
Humidity59%
Visibility6.2 mi
Dew point9°C
Tue, 11+12 ° /27 °0Partly cloudy
+27 °Partly cloudy

Penllwyn, Tuesday, 11 August

Partly cloudy. High 27°C, low 12°C.

Pressure1023 mb
Wind9 mph S
Humidity35%
Visibility6.2 mi
Dew point9°C
Wed, 12+16 ° /29 °0Mainly clear
+29 °Mainly clear

Penllwyn, Wednesday, 12 August

Mainly clear. High 29°C, low 16°C.

Pressure1021 mb
Wind4 mph W
Humidity28%
Visibility6.2 mi
Dew point7°C
Thu, 13+16 ° /28 °0Overcast
+28 °Overcast

Penllwyn, Thursday, 13 August

Overcast. High 28°C, low 16°C.

Pressure1018 mb
Wind9 mph NW
Humidity37%
Visibility—
Dew point11°C
Fri, 14+15 ° /23 °0Partly cloudy
+23 °Partly cloudy

Penllwyn, Friday, 14 August

Partly cloudy. High 23°C, low 15°C.

Pressure1018 mb
Wind10 mph W
Humidity66%
Visibility—
Dew point16°C
Sat, 15+16 ° /21 °0.1Light rain
+21 °Light rain

Penllwyn, Saturday, 15 August

Light rain. High 21°C, low 16°C.

Pressure1018 mb
Wind12 mph NW
Humidity64%
Visibility—
Dew point13°C
Sun, 16+13 ° /20 °0Overcast
+20 °Overcast

Penllwyn, Sunday, 16 August

Overcast. High 20°C, low 13°C.

Pressure1019 mb
Wind11 mph NW
Humidity66%
Visibility—
Dew point13°C
Mon, 17+12 ° /18 °4.9Light rain
+18 °Light rain

Penllwyn, Monday, 17 August

Light rain. High 18°C, low 12°C.

Pressure1011 mb
Wind16 mph W
Humidity99%
Visibility—
Dew point17°C
Tue, 18+12 ° /17 °0.5Light rain
+17 °Light rain

Penllwyn, Tuesday, 18 August

Light rain. High 17°C, low 12°C.

Pressure1015 mb
Wind15 mph W
Humidity72%
Visibility—
Dew point11°C
Wed, 19+12 ° /18 °1.1Light rain
+18 °Light rain

Penllwyn, Wednesday, 19 August

Light rain. High 18°C, low 12°C.

Pressure1015 mb
Wind15 mph W
Humidity56%
Visibility—
Dew point9°C
Thu, 20+11 ° /17 °1.4Light rain
+17 °Light rain

Penllwyn, Thursday, 20 August

Light rain. High 17°C, low 11°C.

Pressure1015 mb
Wind12 mph NW
Humidity71%
Visibility—
Dew point10°C
Fri, 21+10 ° /18 °0.7Light rain
+18 °Light rain

Penllwyn, Friday, 21 August

Light rain. High 18°C, low 10°C.

Pressure1016 mb
Wind14 mph NW
Humidity60%
Visibility—
Dew point9°C
Sat, 22+10 ° /22 °0.8Light rain
+22 °Light rain

Penllwyn, Saturday, 22 August

Light rain. High 22°C, low 10°C.

Pressure1020 mb
Wind12 mph NW
Humidity44%
Visibility—
Dew point8°C
Sun, 23+12 ° /23 °0.8Light rain
+23 °Light rain

Penllwyn, Sunday, 23 August

Light rain. High 23°C, low 12°C.

Pressure1019 mb
Wind13 mph SW
Humidity46%
Visibility—
Dew point9°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 Penllwyn 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 Penllwyn 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.