Ten-day forecast for Trefechan: +8° to +30°, with rain expected on 2 days. The table below breaks each day down by time of day — morning, afternoon, evening and night.
+30°
Best day: 12 August, Wednesday
+17° · 1.6 mm
Worst day: 17 August, Monday
Tap any day below to see the weather morning, afternoon, evening and night.
Sun, 09+9 ° /22 °0
Morning+14°feels +13°
Afternoon+22°feels +21°
Evening+18°feels +18°
Night+11°feels +10°
+22 °
Trefechan, Sunday, 9 August
Overcast. High 22°C, low 9°C.
Pressure1014 mb
Wind5 mph NW
Humidity39%
Visibility6.2 mi
Dew point8°C
Mon, 10+8 ° /19 °0
Morning+12°feels +11°
Afternoon+18°feels +17°
Evening+13°feels +12°
Night+12°feels +12°
+19 °
Trefechan, Monday, 10 August
Overcast. High 19°C, low 8°C.
Pressure1022 mb
Wind9 mph NW
Humidity45%
Visibility6.2 mi
Dew point6°C
Tue, 11+8 ° /27 °0
Morning+12°feels +11°
Afternoon+26°feels +25°
Evening+20°feels +19°
Night+8°feels +8°
+27 °
Trefechan, Tuesday, 11 August
Clear sky. High 27°C, low 8°C.
Pressure1024 mb
Wind10 mph S
Humidity35%
Visibility6.2 mi
Dew point8°C
Wed, 12+12 ° /30 °0
Morning+15°feels +14°
Afternoon+29°feels +27°
Evening+26°feels +25°
Night+13°feels +12°
+30 °
Trefechan, Wednesday, 12 August
Overcast. High 30°C, low 12°C.
Pressure1022 mb
Wind11 mph S
Humidity25%
Visibility6.2 mi
Dew point5°C
Thu, 13+16 ° /30 °0
Morning+20°feels +19°
Afternoon+29°feels +27°
Evening+20°feels +20°
Night+16°feels +15°
+30 °
Trefechan, Thursday, 13 August
Clear sky. High 30°C, low 16°C.
Pressure1017 mb
Wind16 mph N
Humidity17%
Visibility—
Dew point1°C
Fri, 14+14 ° /25 °1.5
Morning+18°feels +18°
Afternoon+23°feels +23°
Evening+19°feels +19°
Night+14°feels +14°
+25 °
Trefechan, Friday, 14 August
Light rain. High 25°C, low 14°C.
Pressure1016 mb
Wind13 mph NW
Humidity57%
Visibility—
Dew point14°C
Sat, 15+11 ° /21 °0
Morning+14°feels +14°
Afternoon+21°feels +20°
Evening+18°feels +17°
Night+12°feels +12°
+21 °
Trefechan, Saturday, 15 August
Overcast. High 21°C, low 11°C.
Pressure1018 mb
Wind8 mph N
Humidity50%
Visibility—
Dew point9°C
Sun, 16+12 ° /22 °0.3
Morning+16°feels +15°
Afternoon+22°feels +21°
Evening+18°feels +17°
Night+13°feels +13°
+22 °
Trefechan, Sunday, 16 August
Light rain. High 22°C, low 12°C.
Pressure1013 mb
Wind11 mph N
Humidity48%
Visibility—
Dew point9°C
Mon, 17+10 ° /17 °1.6
Morning+14°feels +14°
Afternoon+15°feels +15°
Evening+14°feels +13°
Night+11°feels +10°
+17 °
Trefechan, Monday, 17 August
Light rain. High 17°C, low 10°C.
Pressure1013 mb
Wind14 mph NW
Humidity84%
Visibility—
Dew point12°C
Forecast questions
How accurate is a 10-day forecast?
The first 3–5 days are the most dependable — usually within 1–2 degrees. From day 6 to 10 the models show the trend: the direction of change is right more often than the exact figures.
What does the time-of-day table show?
Temperature in Trefechan at around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime temperature against expected rainfall: a warm, dry day scores highest.