Cornwall weather

Below are the temperatures expected today at popular destinations in Cornwall. Select a destination to compare today's forecast with average weather conditions.

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Recommended for Cornwall

The weather guide for Cornwall (Newquay) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

When is the best time to go to Cornwall?

The best time to go to Cornwall (Newquay) is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 9°C maximum daytime temperature in January in Cornwall (Newquay)9
  • 8°C maximum daytime temperature in February in Cornwall (Newquay)8
  • 10°C maximum daytime temperature in March in Cornwall (Newquay)10
  • 12°C maximum daytime temperature in April in Cornwall (Newquay)12
  • 14°C maximum daytime temperature in May in Cornwall (Newquay)14
  • 17°C maximum daytime temperature in June in Cornwall (Newquay)17
  • 19°C maximum daytime temperature in July in Cornwall (Newquay)19
  • 19°C maximum daytime temperature in August in Cornwall (Newquay)19
  • 17°C maximum daytime temperature in September in Cornwall (Newquay)17
  • 15°C maximum daytime temperature in October in Cornwall (Newquay)15
  • 11°C maximum daytime temperature in November in Cornwall (Newquay)11
  • 10°C maximum daytime temperature in December in Cornwall (Newquay)10

Hours of Sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Best time to go for the weather

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the UK

Which is the hottest month in Cornwall?

The hottest time of year in Newquay, Cornwall is normally July. Expect maximum daytime temperatures to reach 19°C.

Which month has the most rain in Cornwall?

In terms of rainfall, December is usually the wettest month in Newquay, Cornwall with 123mm on average. There are normally 21 days in December with some rain.

When is it sunniest in Cornwall?

The sunniest time of year in Newquay, Cornwall is normally April with bright sunshine on average for 45% of daylight hours; that's 6 hours of sunshine per day.

When is the sea warmest in Cornwall?

The sea is usually at its warmest in Newquay, Cornwall in August when the water temperature reaches 16°C.

Compare Cornwall weather with the USA

Below the Cornwall weather chart shows average maximum daytime temperature for Cornwall, England (Newquay) and the USA (Washington).

Maximum daytime temperature (°C)

Cornwall, England (Newquay)
USA (Washington)

Metric (°C / mm)  |  Imperial (°F / inches)

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