Cornwall Weather by Month – United Kingdom Climate

Cornwall in January

In January the weather in Cornwall ranges from less favorable in St Austell to mixed in Newquay. January is a winter month. The average maximum daytime temperatures are low and range from 9°C (48°F) in Gunnislake to 11°C (52°F) in Sennen.

Find more detailed climate information for Cornwall in January here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in January: blue is cold, red is hot.

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

Cornwall in February

In February the weather in Cornwall ranges from less favorable in Newquay to mixed in Penzance. February is a winter month. In Newquay you can expect cold maximum average daytime temperatures around 10°C (50°F) and nighttime temperatures around 5°C (41°F). On average, this month is the coldest month of the year in Cornwall.

Find more detailed climate information for Cornwall in February here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in February: blue is cold, red is hot.

Marker color shows total monthly precipitation in February: pale blue is dry, deep blue is wet.

Cornwall in March

In March the weather in Cornwall is generally mixed. In Newquay you can expect cold maximum average daytime temperatures around 12°C (54°F) and nighttime temperatures around 6°C (43°F).

Find more detailed climate information for Cornwall in March here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in March: blue is cold, red is hot.

Marker color shows total monthly precipitation in March: pale blue is dry, deep blue is wet.

Cornwall in April

In April the weather in Cornwall is generally mixed. In Newquay you can expect mild maximum average daytime temperatures around 13°C (55°F) and nighttime temperatures around 7°C (45°F).

Find more detailed climate information for Cornwall in April here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in April: blue is cold, red is hot.

Marker color shows total monthly precipitation in April: pale blue is dry, deep blue is wet.

Cornwall in May

In May the weather in Cornwall is generally good. The average maximum daytime temperatures are moderate and range from 14°C (57°F) in Sennen to 17°C (63°F) in Truro.

Find more detailed climate information for Cornwall in May here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in May: blue is cold, red is hot.

Marker color shows total monthly precipitation in May: pale blue is dry, deep blue is wet.

Cornwall in June

In June the weather in Cornwall ranges from good in Penzance to very good in Newquay. The temperatures range from moderate in Sennen with 16°C (61°F) to pleasant in Truro with 19°C (66°F).

Find more detailed climate information for Cornwall in June here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in June: blue is cold, red is hot.

Marker color shows total monthly precipitation in June: pale blue is dry, deep blue is wet.

Cornwall in July

In July the weather in Cornwall ranges from very good in Penzance to excellent in Newquay. July is a summer month. The average maximum daytime temperatures are pleasant and range from 18°C (64°F) in Sennen to 21°C (70°F) in Truro.

Find more detailed climate information for Cornwall in July here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in July: blue is cold, red is hot.

Marker color shows total monthly precipitation in July: pale blue is dry, deep blue is wet.

Cornwall in August

In August the weather in Cornwall ranges from very good in Penzance to excellent in Newquay. August is a summer month. The average maximum daytime temperatures are pleasant and range from 19°C (66°F) in St Just to 21°C (70°F) in Truro. On average, this month is the warmest month of the year in Cornwall.

Find more detailed climate information for Cornwall in August here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

Marker color shows total monthly precipitation in August: pale blue is dry, deep blue is wet.

Cornwall in September

In September the weather in Cornwall is generally very good. September is a summer month. In Newquay you can expect pleasant maximum average daytime temperatures around 19°C (66°F) and nighttime temperatures around 13°C (55°F).

Find more detailed climate information for Cornwall in September here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.

Cornwall in October

In October the weather in Cornwall ranges from mixed in Penzance to good in Newquay. In Newquay you can expect mild maximum average daytime temperatures around 16°C (61°F) and nighttime temperatures around 11°C (52°F).

Find more detailed climate information for Cornwall in October here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in October: blue is cold, red is hot.

Marker color shows total monthly precipitation in October: pale blue is dry, deep blue is wet.

Cornwall in November

In November the weather in Cornwall ranges from less favorable in Newquay to mixed in Falmouth. In Newquay you can expect mild maximum average daytime temperatures around 13°C (55°F) and nighttime temperatures around 8°C (46°F).

Find more detailed climate information for Cornwall in November here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in November: blue is cold, red is hot.

Marker color shows total monthly precipitation in November: pale blue is dry, deep blue is wet.

Cornwall in December

In December the weather in Cornwall ranges from less favorable in Newquay to mixed in Falmouth. December is a winter month. The temperatures range from low in Gunnislake with 10°C (50°F) to moderate in St Just with 12°C (54°F).

Find more detailed climate information for Cornwall in December here.

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

Marker color shows total monthly precipitation in December: pale blue is dry, deep blue is wet.

Cornwall Weather by Month: Temperature & Rainfall Guide

Cornwall in January

Cornwall in February

Cornwall in March

Cornwall in April

Cornwall in May

Cornwall in June

Cornwall in July

Cornwall in August

Cornwall in September

Cornwall in October

Cornwall in November

Cornwall in December

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