Average temperature in Portland
The mean minimum and maximum temperatures over the year in Portland (Dorset), 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 14°C.
- The average annual minimum temperature is 10°C.
Forecast for Portland
broken clouds and chance of rain
overcast and heavy rain
overcast and no rain