As of 20:50 BST

Weather in Trefriw

+18°Weather now

Trefriw, Saturday, 8 August, 20:50

Overcast. Feels like 18°C. High 24°C, low 9°C.

Pressure1016 mb
Wind7 mph S
Humidity70%
Visibility6.2 mi
Dew point12°C
Sun, 09+11 ° /22 °0.1Light rain
+22 °Light rain

Trefriw, Sunday, 9 August

Light rain. High 22°C, low 11°C.

Pressure1013 mb
Wind9 mph SW
Humidity60%
Visibility6.2 mi
Dew point11°C
Mon, 10+9 ° /19 °0.4Light rain
+19 °Light rain

Trefriw, Monday, 10 August

Light rain. High 19°C, low 9°C.

Pressure1022 mb
Wind6 mph N
Humidity61%
Visibility6.2 mi
Dew point8°C
Tue, 11+9 ° /24 °0Partly cloudy
+24 °Partly cloudy

Trefriw, Tuesday, 11 August

Partly cloudy. High 24°C, low 9°C.

Pressure1023 mb
Wind3 mph SW
Humidity38%
Visibility6.2 mi
Dew point8°C
Wed, 12+15 ° /25 °0Overcast
+25 °Overcast

Trefriw, Wednesday, 12 August

Overcast. High 25°C, low 15°C.

Pressure1022 mb
Wind3 mph SW
Humidity37%
Visibility6.2 mi
Dew point8°C
Thu, 13+17 ° /25 °0Overcast
+25 °Overcast

Trefriw, Thursday, 13 August

Overcast. High 25°C, low 17°C.

Pressure1019 mb
Wind5 mph SW
Humidity41%
Visibility—
Dew point10°C
Fri, 14+16 ° /22 °0.3Light rain
+22 °Light rain

Trefriw, Friday, 14 August

Light rain. High 22°C, low 16°C.

Pressure1017 mb
Wind7 mph S
Humidity72%
Visibility—
Dew point16°C
Sat, 15+11 ° /18 °0Overcast
+18 °Overcast

Trefriw, Saturday, 15 August

Overcast. High 18°C, low 11°C.

Pressure1018 mb
Wind7 mph NW
Humidity68%
Visibility—
Dew point11°C
Sun, 16+12 ° /17 °1Light rain
+17 °Light rain

Trefriw, Sunday, 16 August

Light rain. High 17°C, low 12°C.

Pressure1019 mb
Wind6 mph NW
Humidity77%
Visibility—
Dew point12°C
Mon, 17+11 ° /16 °4.5Light rain
+16 °Light rain

Trefriw, Monday, 17 August

Light rain. High 16°C, low 11°C.

Pressure1010 mb
Wind11 mph W
Humidity97%
Visibility—
Dew point14°C
Tue, 18+11 ° /15 °0.9Light rain
+15 °Light rain

Trefriw, Tuesday, 18 August

Light rain. High 15°C, low 11°C.

Pressure1014 mb
Wind16 mph W
Humidity70%
Visibility—
Dew point9°C
Wed, 19+10 ° /16 °0.9Light rain
+16 °Light rain

Trefriw, Wednesday, 19 August

Light rain. High 16°C, low 10°C.

Pressure1014 mb
Wind16 mph W
Humidity57%
Visibility—
Dew point7°C
Thu, 20+9 ° /15 °0.3Light rain
+15 °Light rain

Trefriw, Thursday, 20 August

Light rain. High 15°C, low 9°C.

Pressure1015 mb
Wind8 mph W
Humidity75%
Visibility—
Dew point8°C
Fri, 21+9 ° /14 °0.7Light rain
+14 °Light rain

Trefriw, Friday, 21 August

Light rain. High 14°C, low 9°C.

Pressure1016 mb
Wind9 mph N
Humidity68%
Visibility—
Dew point7°C
Sat, 22+9 ° /17 °3.1Light rain
+17 °Light rain

Trefriw, Saturday, 22 August

Light rain. High 17°C, low 9°C.

Pressure1021 mb
Wind8 mph NE
Humidity67%
Visibility—
Dew point9°C
Sun, 23+10 ° /19 °0.1Light rain
+19 °Light rain

Trefriw, Sunday, 23 August

Light rain. High 19°C, low 10°C.

Pressure1019 mb
Wind12 mph SW
Humidity52%
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 Trefriw 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 Trefriw 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.