As of 23:51 BST

Weather in Gwalchmai Uchaf

+16°Weather now

Gwalchmai Uchaf, Saturday, 8 August, 23:51

Overcast. Feels like 15°C. High 25°C, low 11°C.

Pressure1015 mb
Wind8 mph S
Humidity80%
Visibility6.2 mi
Dew point12°C
Sun, 09+13 ° /23 °0Overcast
+23 °Overcast

Gwalchmai Uchaf, Sunday, 9 August

Overcast. High 23°C, low 13°C.

Pressure1014 mb
Wind8 mph SW
Humidity67%
Visibility6.2 mi
Dew point12°C
Mon, 10+11 ° /20 °0Overcast
+20 °Overcast

Gwalchmai Uchaf, Monday, 10 August

Overcast. High 20°C, low 11°C.

Pressure1022 mb
Wind9 mph NW
Humidity54%
Visibility6.2 mi
Dew point8°C
Tue, 11+11 ° /23 °0Overcast
+23 °Overcast

Gwalchmai Uchaf, Tuesday, 11 August

Overcast. High 23°C, low 11°C.

Pressure1023 mb
Wind12 mph S
Humidity42%
Visibility6.2 mi
Dew point8°C
Wed, 12+16 ° /24 °0Overcast
+24 °Overcast

Gwalchmai Uchaf, Wednesday, 12 August

Overcast. High 24°C, low 16°C.

Pressure1021 mb
Wind10 mph SW
Humidity37%
Visibility6.2 mi
Dew point7°C
Thu, 13+17 ° /26 °0Overcast
+26 °Overcast

Gwalchmai Uchaf, Thursday, 13 August

Overcast. High 26°C, low 17°C.

Pressure1019 mb
Wind8 mph W
Humidity37%
Visibility—
Dew point9°C
Fri, 14+16 ° /22 °0Overcast
+22 °Overcast

Gwalchmai Uchaf, Friday, 14 August

Overcast. High 22°C, low 16°C.

Pressure1017 mb
Wind8 mph W
Humidity72%
Visibility—
Dew point16°C
Sat, 15+13 ° /20 °0.1Light rain
+20 °Light rain

Gwalchmai Uchaf, Saturday, 15 August

Light rain. High 20°C, low 13°C.

Pressure1018 mb
Wind13 mph N
Humidity60%
Visibility—
Dew point11°C
Sun, 16+13 ° /19 °0.1Light rain
+19 °Light rain

Gwalchmai Uchaf, Sunday, 16 August

Light rain. High 19°C, low 13°C.

Pressure1019 mb
Wind9 mph NW
Humidity71%
Visibility—
Dew point12°C
Mon, 17+13 ° /17 °7.5Rain
+17 °Rain

Gwalchmai Uchaf, Monday, 17 August

Rain. High 17°C, low 13°C.

Pressure1010 mb
Wind18 mph S
Humidity98%
Visibility—
Dew point16°C
Tue, 18+13 ° /17 °0.5Light rain
+17 °Light rain

Gwalchmai Uchaf, Tuesday, 18 August

Light rain. High 17°C, low 13°C.

Pressure1014 mb
Wind15 mph W
Humidity65%
Visibility—
Dew point9°C
Wed, 19+14 ° /18 °0.8Light rain
+18 °Light rain

Gwalchmai Uchaf, Wednesday, 19 August

Light rain. High 18°C, low 14°C.

Pressure1014 mb
Wind16 mph W
Humidity66%
Visibility—
Dew point10°C
Thu, 20+11 ° /16 °0.5Light rain
+16 °Light rain

Gwalchmai Uchaf, Thursday, 20 August

Light rain. High 16°C, low 11°C.

Pressure1015 mb
Wind11 mph W
Humidity68%
Visibility—
Dew point9°C
Fri, 21+11 ° /17 °0Partly cloudy
+17 °Partly cloudy

Gwalchmai Uchaf, Friday, 21 August

Partly cloudy. High 17°C, low 11°C.

Pressure1016 mb
Wind12 mph N
Humidity54%
Visibility—
Dew point7°C
Sat, 22+10 ° /19 °0Clear sky
+19 °Clear sky

Gwalchmai Uchaf, Saturday, 22 August

Clear sky. High 19°C, low 10°C.

Pressure1021 mb
Wind12 mph NE
Humidity56%
Visibility—
Dew point9°C
Sun, 23+12 ° /19 °0Overcast
+19 °Overcast

Gwalchmai Uchaf, Sunday, 23 August

Overcast. High 19°C, low 12°C.

Pressure1019 mb
Wind17 mph SW
Humidity62%
Visibility—
Dew point10°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 Gwalchmai Uchaf 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 Gwalchmai Uchaf 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.