Porth Mellin Weather Forecast, Cornwall TR12 7

Today 9 Oct South West England

A bright start in the east with any remnant mist and fog patches clearing readily from dawn. Becoming cloudy through the day, though some sunny spells remain possible, especially in the east of the region. Feeling pleasant in any sunshine. Maximum Temperature 17C.

Tonight 9 Oct South West England

Remaining dry and calm throughout Thursday evening and overnight. Varying amounts of cloud but some clear spells holding on, under which a few mist and fog patches may develop as temperatures drop slightly. Minimum Temperature 7C.

Fri 10 Oct South West England

Any early mist and fog clearing, then a largely cloudy but dry day with a few glimmers of sunshine throughout the afternoon, mainly to the north of the region. Maximum Temperature 18C.

Sat 11 Oct South West England

Staying largely settled with light winds as high pressure dominates. Sunny spells this weekend, perhaps more cloud into next week. Locally chilly overnight with fog patches.

Sun 12 Oct South West England

Staying largely settled with light winds as high pressure dominates. Sunny spells this weekend, perhaps more cloud into next week. Locally chilly overnight with fog patches.

Mon 13 Oct South West England

Staying largely settled with light winds as high pressure dominates. Sunny spells this weekend, perhaps more cloud into next week. Locally chilly overnight with fog patches.

Tue 14 Oct South West England

High pressure is expected to be the dominant weather type across the UK at the start of this period. Whilst some rain and drizzle is likely in parts of the south and east on Tuesday, the rest of the first week is expected to be predominantly dry. Cloud amounts will vary, but most areas will see some spells of sunshine and there could be a few isolated fog patches overnight. Temperatures are likely to be close to normal for the time of year. During the second half of this period, there are signs that the overall pattern will shift with low pressure systems probably moving in from the west in some fashion. However, details of any wetter and more unsettled weather are still very uncertain.

Wed 15 Oct South West England

High pressure is expected to be the dominant weather type across the UK at the start of this period. Whilst some rain and drizzle is likely in parts of the south and east on Tuesday, the rest of the first week is expected to be predominantly dry. Cloud amounts will vary, but most areas will see some spells of sunshine and there could be a few isolated fog patches overnight. Temperatures are likely to be close to normal for the time of year. During the second half of this period, there are signs that the overall pattern will shift with low pressure systems probably moving in from the west in some fashion. However, details of any wetter and more unsettled weather are still very uncertain.

Porth Mellin Weather Forecast

Today 9 Oct South West England

Tonight 9 Oct South West England

Fri 10 Oct South West England

Sat 11 Oct South West England

Sun 12 Oct South West England

Mon 13 Oct South West England

Tue 14 Oct South West England

Wed 15 Oct South West England

Temperature Forecast Met Office

Temperature Real-Time

Predannack (Cornwall) Radar

National Satellite

National Synoptic

Porth Mellin Temperature Statistics

October Temperature

Culdrose (7km)

Lowest 2 January, 2025

Average 2025

Highest 11 July, 2025

Lowest 23 September, 2025

Average September

Highest 6 September, 2025

Lowest 8 October, 2025

Average October

Highest 2 October, 2025

Climate (2020–Present)

Culdrose (7km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025