As of 21:27 BST

Weather in Trefechan

+18°Weather now

Trefechan, Saturday, 8 August, 21:27

Overcast. Feels like 17°C. High 22°C, low 12°C.

Pressure1016 mb
Wind2 mph NE
Humidity75%
Visibility6.2 mi
Dew point13°C
Sun, 09+14 ° /21 °0Overcast
+21 °Overcast

Trefechan, Sunday, 9 August

Overcast. High 21°C, low 14°C.

Pressure1015 mb
Wind8 mph W
Humidity66%
Visibility6.2 mi
Dew point12°C
Mon, 10+14 ° /18 °0Overcast
+18 °Overcast

Trefechan, Monday, 10 August

Overcast. High 18°C, low 14°C.

Pressure1022 mb
Wind12 mph NW
Humidity65%
Visibility6.2 mi
Dew point10°C
Tue, 11+13 ° /25 °0Partly cloudy
+25 °Partly cloudy

Trefechan, Tuesday, 11 August

Partly cloudy. High 25°C, low 13°C.

Pressure1023 mb
Wind7 mph S
Humidity44%
Visibility6.2 mi
Dew point10°C
Wed, 12+17 ° /25 °0Mainly clear
+25 °Mainly clear

Trefechan, Wednesday, 12 August

Mainly clear. High 25°C, low 17°C.

Pressure1021 mb
Wind5 mph NW
Humidity37%
Visibility6.2 mi
Dew point8°C
Thu, 13+17 ° /25 °0Overcast
+25 °Overcast

Trefechan, Thursday, 13 August

Overcast. High 25°C, low 17°C.

Pressure1019 mb
Wind9 mph NW
Humidity51%
Visibility—
Dew point12°C
Fri, 14+16 ° /21 °0Partly cloudy
+21 °Partly cloudy

Trefechan, Friday, 14 August

Partly cloudy. High 21°C, low 16°C.

Pressure1018 mb
Wind10 mph W
Humidity78%
Visibility—
Dew point16°C
Sat, 15+16 ° /19 °0Overcast
+19 °Overcast

Trefechan, Saturday, 15 August

Overcast. High 19°C, low 16°C.

Pressure1018 mb
Wind15 mph NW
Humidity72%
Visibility—
Dew point13°C
Sun, 16+15 ° /18 °0Overcast
+18 °Overcast

Trefechan, Sunday, 16 August

Overcast. High 18°C, low 15°C.

Pressure1019 mb
Wind11 mph NW
Humidity76%
Visibility—
Dew point14°C
Mon, 17+14 ° /18 °5.9Light rain
+18 °Light rain

Trefechan, Monday, 17 August

Light rain. High 18°C, low 14°C.

Pressure1011 mb
Wind17 mph W
Humidity98%
Visibility—
Dew point17°C
Tue, 18+14 ° /17 °0.6Light rain
+17 °Light rain

Trefechan, Tuesday, 18 August

Light rain. High 17°C, low 14°C.

Pressure1015 mb
Wind15 mph W
Humidity74%
Visibility—
Dew point11°C
Wed, 19+14 ° /17 °1.2Light rain
+17 °Light rain

Trefechan, Wednesday, 19 August

Light rain. High 17°C, low 14°C.

Pressure1015 mb
Wind16 mph W
Humidity62%
Visibility—
Dew point10°C
Thu, 20+13 ° /16 °1.7Light rain
+16 °Light rain

Trefechan, Thursday, 20 August

Light rain. High 16°C, low 13°C.

Pressure1015 mb
Wind11 mph NW
Humidity73%
Visibility—
Dew point11°C
Fri, 21+13 ° /17 °0.5Light rain
+17 °Light rain

Trefechan, Friday, 21 August

Light rain. High 17°C, low 13°C.

Pressure1016 mb
Wind18 mph NW
Humidity66%
Visibility—
Dew point10°C
Sat, 22+11 ° /20 °0.6Light rain
+20 °Light rain

Trefechan, Saturday, 22 August

Light rain. High 20°C, low 11°C.

Pressure1020 mb
Wind16 mph NW
Humidity57%
Visibility—
Dew point10°C
Sun, 23+13 ° /21 °0.8Light rain
+21 °Light rain

Trefechan, Sunday, 23 August

Light rain. High 21°C, low 13°C.

Pressure1019 mb
Wind14 mph W
Humidity54%
Visibility—
Dew point11°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 Trefechan 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 Trefechan 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.