July is the hottest month in Cornwall with an average temperature of 16°C (61°F) and the coldest is February at 5.5°C (42°F) with the most daily sunshine hours at 7 in August. The wettest month is December with an average of 120mm of rain.
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On average, Cornwall enjoys 1,541 hours of sunshine per year with July being the warmest month however, it's unlikely the weather will ever get extremely hot.
In the months of July and August (the hottest part of the year) daily maxima range from about 19 °C (66 °F) on the coast of Cornwall to 22 °C (72 °F) across inland areas of the north-east (Somerset and North Somerset) and also Exeter due to being situated in the Eastern Lee of Dartmoor .
Cornwall can expect well over 1500 hours of sunshine annually and, whilst May is usually the sunniest month, May to July average around 7 hours of sunshine a day.
The Roseland Peninsula, on which The Nare resides, has an even milder climate compared to the rest of Cornwall. A part of the south coast of Cornwall, the Roseland has its own micro-climate that allows palm trees, agave plants and other subtropical flowers to flourish in the hotel gardens.
Cornwall benefits from the mildest and sunniest climate in the UK, due to its southerly latitude and the effect of the Gulf Stream. The sea surrounding our coasts and the southwesterly position means that the weather here can be relatively changeable.
St Ives is one of the sunniest places in the United Kingdom, with over 1500 hours of sunshine each year. As Cornwall benefits from the Gulf Stream and the sub-tropical nature, there are a number of botanical gardens in the area, such as Trebah and the Lost Gardens of Heligan.
The Isles of ScillyAmong the warmest places in the UK to live, the Scilly Isles stand out. The southernmost point of Britain, it is part of Cornwall's ceremonial county. Scilly, however, is quite different. There are over 140 islands in this remote region.
Cornwall has the mildest and sunniest climate in the United Kingdom, as a result of its oceanic setting and the influence of the Gulf Stream. The average annual temperature in Cornwall ranges from 11.6 °C (53 °F) on the Isles of Scilly to 9.8 °C (50 °F) in the central uplands.