Ten-day forecast for Nefyn: +13° to +22°, with rain expected on 1 day. The table below breaks each day down by time of day — morning, afternoon, evening and night.
+22°
Best day: 8 August, Saturday
+17° · 9 mm
Worst day: 17 August, Monday
Tap any day below to see the weather morning, afternoon, evening and night.
Sun, 09+14 ° /21 °0
Morning+17°feels +17°
Afternoon+19°feels +19°
Evening+18°feels +18°
Night+16°feels +15°
+21 °
Nefyn, Sunday, 9 August
Overcast. High 21°C, low 14°C.
Pressure1014 mb
Wind7 mph SW
Humidity78%
Visibility6.2 mi
Dew point13°C
Mon, 10+14 ° /17 °0
Morning+15°feels +14°
Afternoon+15°feels +15°
Evening+17°feels +16°
Night+15°feels +14°
+17 °
Nefyn, Monday, 10 August
Overcast. High 17°C, low 14°C.
Pressure1023 mb
Wind9 mph NW
Humidity72%
Visibility6.2 mi
Dew point10°C
Tue, 11+15 ° /20 °0
Morning+16°feels +16°
Afternoon+20°feels +20°
Evening+18°feels +18°
Night+15°feels +15°
+20 °
Nefyn, Tuesday, 11 August
Overcast. High 20°C, low 15°C.
Pressure1023 mb
Wind10 mph S
Humidity58%
Visibility6.2 mi
Dew point11°C
Wed, 12+17 ° /20 °0
Morning+18°feels +17°
Afternoon+20°feels +20°
Evening+19°feels +19°
Night+18°feels +17°
+20 °
Nefyn, Wednesday, 12 August
Partly cloudy. High 20°C, low 17°C.
Pressure1022 mb
Wind6 mph S
Humidity55%
Visibility6.2 mi
Dew point11°C
Thu, 13+18 ° /20 °0
Morning+19°feels +18°
Afternoon+20°feels +20°
Evening+19°feels +19°
Night+18°feels +18°
+20 °
Nefyn, Thursday, 13 August
Overcast. High 20°C, low 18°C.
Pressure1019 mb
Wind8 mph NW
Humidity64%
Visibility—
Dew point13°C
Fri, 14+17 ° /19 °0
Morning+18°feels +18°
Afternoon+19°feels +19°
Evening+19°feels +19°
Night+18°feels +18°
+19 °
Nefyn, Friday, 14 August
Overcast. High 19°C, low 17°C.
Pressure1017 mb
Wind10 mph SE
Humidity88%
Visibility—
Dew point17°C
Sat, 15+15 ° /18 °0.5
Morning+16°feels +16°
Afternoon+16°feels +16°
Evening+16°feels +16°
Night+16°feels +16°
+18 °
Nefyn, Saturday, 15 August
Light rain. High 18°C, low 15°C.
Pressure1019 mb
Wind18 mph NW
Humidity81%
Visibility—
Dew point13°C
Sun, 16+15 ° /16 °0
Morning+15°feels +15°
Afternoon+15°feels +15°
Evening+16°feels +15°
Night+16°feels +15°
+16 °
Nefyn, Sunday, 16 August
Overcast. High 16°C, low 15°C.
Pressure1020 mb
Wind12 mph N
Humidity85%
Visibility—
Dew point13°C
Mon, 17+15 ° /17 °9
Morning+16°feels +16°
Afternoon+17°feels +17°
Evening+17°feels +18°
Night+17°feels +17°
+17 °
Nefyn, Monday, 17 August
Rain. High 17°C, low 15°C.
Pressure1010 mb
Wind20 mph S
Humidity95%
Visibility—
Dew point16°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 Nefyn 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.