Average temperature in Saint Merryn
The mean minimum and maximum temperatures over the year in Saint Merryn (Cornwall), the United Kingdom.
- On average, the warmest month is August with 20°C.
- On average, the coolest month is February with 10°C.
- The average annual maximum temperature is 15°C.
- The average annual minimum temperature is 9°C.
Forecast for Saint Merryn
broken clouds and rain
overcast and heavy rain
broken clouds and rain