Annual average weather for Harlyn Bay, Cornwall, United Kingdom

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Annual Average Weather for Harlyn Bay, Cornwall, United Kingdom

The annual average maximum daily temperature is 13.4°C (56.0°F) which is too cold for sunbathing. The annual average water temperature is typically 12.8°C (55.0°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 17.7 days of rain per month and 4.7 hours of sun per day.

When is the best time to visit Harlyn Bay?

The best months to visit Harlyn Bay are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The sea is best for swimming between June and November when the sea temperature is above the average 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Can you sunbathe in Harlyn Bay year round?

No, you can't sunbathe in Harlyn Bay all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

Even during the warmest month, sunbathing may not be ideal as temperatures don't reach 20°C (72°F). The warmest month in Harlyn Bay is July when the average maximum temperature is 19°C (65°F), average temperature is 16°C (60°F) and average minimum temperature is 13°C (56°F).

More info about the annual temperatures and sunshine.

Can you swim in Harlyn Bay year round?

No, you can't swim in Harlyn Bay all year round.

The warmest sea water temperatures in Harlyn Bay are found in August when they peak at 17°C (62°F) and lowest in February when they dip to 9°C (49°F).

The sea temperature is above average for swimming between June and November when the sea temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

More info about the annual sea temperatures

When is the hottest month in Harlyn Bay?

The hottest month in Harlyn Bay is July when the average maximum temperature is not that warm but sunbathing may be possible on some clear days 19°C (65°F), average temperature is 16°C (60°F) and average minimum temperature is 13°C (56°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Harlyn Bay?

The coolest month in Harlyn Bay is February when the average maximum temperature is 9°C (47°F), average temperature is 6°C (43°F) and average minimum temperature is 4°C (39°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Harlyn Bay?

The sunniest days in Harlyn Bay are in June which has the most hours of sunshine per day. In June the sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.6 hours of sunshine per day.

More info about the annual sunshine.

When is the least sunny month in Harlyn Bay?

December has the least sunshine. In December the sunshine percentage is 22% making it extremely gloomy and overcast with little sunshine. There are 1.8 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in Harlyn Bay?

The driest month in Harlyn Bay is September with 0.4cm (0.2inches) of rain and June has the fewest days of rain with 14.6 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall

When is the wettest month in Harlyn Bay?

The wettest month in Harlyn Bay is November with 2cm (0.8inches) of rain and the most days of rain with 21.3 days with some rain, a very wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Harlyn Bay?

The coldest sea water temperatures in Harlyn Bay are found in February when they dip to 9°C (49°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

More info about the annual sea temperatures.

When is the sea the warmest in Harlyn Bay?

The warmest sea water temperatures in Harlyn Bay are found in August when they peak at 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.

More info about the annual sea temperatures.

When is the most humid month in Harlyn Bay?

The most humid month in Harlyn Bay is August with a dew point (an indicator of humidity) of 15°C (59°F) which is comfortable for everyone.

More info about the annual humidity.

When is the least humid month in Harlyn Bay?

The least humid month in Harlyn Bay is February with a dew point of 6°C (43°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in Harlyn Bay?

The most windy month in Harlyn Bay is January when the average maximum windspeed is 35KM/H (22MPH) and the average wind speed is 23KM/H (14MPH).

More info about the annual wind conditions.

Annual Temperature for Harlyn Bay

The hottest month in Harlyn Bay is July when the average maximum temperature is 19°C (65°F), average temperature is 16°C (60°F) and average minimum temperature is 13°C (56°F).

The coolest month in Harlyn Bay is February when the average maximum temperature is 9°C (9°F), average temperature is 6°C (43°F) and average minimum temperature is 4°C (39°F).

Annual Sunshine for Harlyn Bay

The longest days in Harlyn Bay are in June, with an average of 16.4 hours of daylight per day. December has the shortest days with an average of 8 hours of daylight per day.

The sunniest days in Harlyn Bay are in June which has the most hours of sunshine per day. The sunshine percentage is 46% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.6 hours of sunshine per day.

December has the least sunshine. The sunshine percentage is 22% making it extremely gloomy and overcast with little sunshine. There are 1.8 hours of sunshine per day.

The ultraviolet index is the highest in June when it reaches 7.7 and lowest in December when it reaches 0.6.

An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Harlyn Bay

The warmest sea water temperatures in Harlyn Bay are found in August when they peak at 17°C (62°F) and lowest in February when they dip to 9°C (49°F).

The sea is best for swimming between June and November when the temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Annual Rainfall for Harlyn Bay

The wettest month in Harlyn Bay is November with 2cm (0.8inches) of rain and the most days of rain with 21.3 days with some rain, a very wet time to visit the beach.

The driest month in Harlyn Bay is September with 0.4cm (0.2inches) of rain and June has the fewest days of rain with 14.6 days with some rain, a pretty wet time to visit the beach.

Annual Humidity for Harlyn Bay

The most humid month in Harlyn Bay is August with a dew point (an indicator of humidity) of 15°C (59°F) which is comfortable for everyone.

The least humid month in Harlyn Bay is February with a dew point of 6°C (43°F) which is a bit dry for some.

Annual Wind Speed for Harlyn Bay

The most windy month in Harlyn Bay is January when the average maximum windspeed is 35KM/H (22MPH) and the average wind speed is 23KM/H (14MPH).

The least windy month in Harlyn Bay is August when the average maximum windspeed is 26KM/H (16MPH) and the average wind speed is 16KM/H (10MPH).

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