Onjohn Cove Weather Forecast, Cornwall

Today 12 Jul South West England

Another dry, fine day with widely blue skies and plenty of strong sunshine. A few fair weather clouds bubbling up. Feeling hot inland with generally light winds, though a touch cooler and breezier along the coasts. Maximum Temperature 32C.

Tonight 12 Jul South West England

Staying dry this evening with plenty of late sunshine. Clear skies and light winds overnight may allow some patchy mist and fog to form by dawn. Feeling warm and muggy. Minimum Temperature 15C.

Sun 13 Jul South West England

Temperatures a degree or two lower on Sunday, though still widely very warm with sunny spells and light winds. More cloud in the afternoon with a few showers possible later. Maximum Temperature 30C.

Mon 14 Jul South West England

Turning more changeable next week with showers at times, these sometimes heavy and thundery. Temperatures briefly dropping back closer to the seasonal average.

Tue 15 Jul South West England

Turning more changeable next week with showers at times, these sometimes heavy and thundery. Temperatures briefly dropping back closer to the seasonal average.

Wed 16 Jul South West England

Turning more changeable next week with showers at times, these sometimes heavy and thundery. Temperatures briefly dropping back closer to the seasonal average.

Thu 17 Jul South West England

Changeable weather conditions are expected across the UK during this forecast period. Periods of fine and dry weather are expected at times. These settled spells could persist for several days at a time and are likely to be accompanied by plenty of sunshine. Interspersed with this will be cloudier, more unsettled intervals which will bring some showers or longer spells of persistent rainfall. Some of the rainfall is likely to be heavy in places, with a risk thunderstorms at times as well. Temperatures are expected to be above normal for the majority of the UK throughout this period. Some hot conditions are likely to develop at times, particularly in southern and eastern areas of the UK.

Fri 18 Jul South West England

Changeable weather conditions are expected across the UK during this forecast period. Periods of fine and dry weather are expected at times. These settled spells could persist for several days at a time and are likely to be accompanied by plenty of sunshine. Interspersed with this will be cloudier, more unsettled intervals which will bring some showers or longer spells of persistent rainfall. Some of the rainfall is likely to be heavy in places, with a risk thunderstorms at times as well. Temperatures are expected to be above normal for the majority of the UK throughout this period. Some hot conditions are likely to develop at times, particularly in southern and eastern areas of the UK.

Onjohn Cove Weather Forecast

Today 12 Jul South West England

Tonight 12 Jul South West England

Sun 13 Jul South West England

Mon 14 Jul South West England

Tue 15 Jul South West England

Wed 16 Jul South West England

Thu 17 Jul South West England

Fri 18 Jul South West England

Temperature Forecast Met Office

Temperature Real-Time

Predannack (Cornwall) Radar

National Satellite

National Synoptic

Onjohn Cove Temperature Statistics

July Temperature

Cardinham (24km)

Lowest 9 January, 2025

Average 2025

Highest 20 June, 2025

Lowest 2 June, 2025

Average June

Highest 20 June, 2025

Lowest 3 July, 2025

Average July

Highest 10 July, 2025

Climate (2020–Present)

Cardinham (24km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025