Spring (March–May): Average 7.2–12.6°C, cool climate, low rainfall, sunny. Common activities: Hiking, cycling, exploring Conwy Castle. Recommended clothing: Light jacket, long-sleeved shirt, comfortable trousers.
Summer (June–August): Average 13.1–15.9°C, mild climate, very low rainfall, suitable for outdoor activities. Common activities: Beach leisure, water sports, visiting attractions around Conwy. Recommended clothing: Short-sleeved shirts, light trousers, sun protection clothing.
Autumn (September–November): Average 8.5–13.3°C, cooler climate, higher rainfall in November. Common activities: Enjoying autumn scenery, visiting museums, tasting local food. Recommended clothing: Light jacket, long-sleeved shirts, warm clothing.
Winter (December–February): Average 5.7–8.0°C, cold climate, low rainfall. Common activities: Indoor activities, visiting museums, enjoying cosy café time. Recommended clothing: Warm coat, sweater, scarf, hat.
Conwy climatological average
Annual average temperature: approx. 10.6°C / Annual rainfall: approx. 49 mm / Summer humidity: 60%–70% / Rainiest month: November
Conwy monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.7°C
4.3
February
7.3°C
5.1
March
7.2°C
5.1
April
8.8°C
4.8
May
12.6°C
3
June
13.1°C
2.5
July
14.8°C
3.5
August
15.9°C
2.3
September
13.3°C
5.3
October
11.5°C
3
November
8.5°C
5.8
December
8°C
4.4
Conwy weather for the next seven days
12/17
Wednesday
Moderate rain
10.4°C/4.6°C
12/18
Thursday
Moderate rain
9.8°C/6.7°C
12/19
Friday
Patchy rain nearby
8.5°C/7.5°C
12/20
Saturday
Patchy rain nearby
8.6°C/7.4°C
12/21
Sunday
Patchy rain nearby
8.4°C/5.1°C
12/22
Monday
Patchy rain nearby
9.3°C/5.6°C
12/23
Tuesday
Patchy rain nearby
7.4°C/6.3°C
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