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Best
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Best
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Best
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Best
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Tan
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Sea
12°
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Sea
11°
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Sea
11°
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Sea
11°
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Sea
12°
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Sea
16°
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Sea
18°
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Sea
18°
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Sea
17°
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Sea
16°
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Sea
15°
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Sea
12°
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The annual average maximum daily temperature is 15.3°C (59.6°F) which is a little too chilly for sunbathing. The annual average water temperature is typically 14.0°C (57.2°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea. Annually there are on average 15.0 days of rain per month and 5.6 hours of sun per day.
The best months to visit Glenan Islands 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 14°C (57°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
No, you can't sunbathe in Glenan Islands 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.
More info about the annual temperatures and sunshine.
No, you can't swim in Glenan Islands all year round.
The warmest sea water temperatures in Glenan Islands are found in August when they peak at 18°C (64°F) and lowest in February when they dip to 11°C (51°F).
The sea temperature is above average for swimming between June and November when the sea temperature is above 14°C (57°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
More info about the annual sea temperatures
The hottest month in Glenan Islands is July when the average maximum temperature is nice and warm and makes sunbathing pleasant on clear days 21°C (70°F), average temperature is 17°C (63°F) and average minimum temperature is 14°C (57°F).
More info about the annual temperatures and sunshine.
The coolest month in Glenan Islands is February when the average maximum temperature is 10°C (49°F), average temperature is 7°C (44°F) and average minimum temperature is 4°C (39°F).
More info about the annual temperatures and sunshine
The driest month in Glenan Islands is September with 0cm (0inches) of rain and the least days of rain with 10.6 days with some rain, a pretty wet time to visit the beach.
More info about the annual rainfall
The coldest sea water temperatures in Glenan Islands are found in February when they dip to 11°C (51°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.
The warmest sea water temperatures in Glenan Islands are found in August when they peak at 18°C (64°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
More info about the annual sea temperatures.
The most humid month in Glenan Islands is August with a dew point (an indicator of humidity) of 16°C (60°F) which is comfortable for everyone.
More info about the annual humidity.
The least humid month in Glenan Islands is February with a dew point of 6°C (43°F) which is a bit dry for some.
More info about the annual humidity.
The most windy month in Glenan Islands is January when the average maximum windspeed is 27KM/H (17MPH) and the average wind speed is 15KM/H (10MPH).
More info about the annual wind conditions.
The hottest month in Glenan Islands is July when the average maximum temperature is 21°C (70°F), average temperature is 17°C (63°F) and average minimum temperature is 14°C (57°F).
The coolest month in Glenan Islands is February when the average maximum temperature is 10°C (10°F), average temperature is 7°C (44°F) and average minimum temperature is 4°C (39°F).
The longest days in Glenan Islands are in June, with an average of 16 hours of daylight per day. December has the shortest days with an average of 8.4 hours of daylight per day.
The sunniest days in Glenan Islands are in June which has the most hours of sunshine per day. The sunshine percentage is 56% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 8.5 hours of sunshine per day.
December has the least sunshine. The sunshine percentage is 24% making it extremely gloomy and overcast with little sunshine. There are 2.0 hours of sunshine per day.
The ultraviolet index is the highest in July when it reaches 8.3 and lowest in December when it reaches 0.8.
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.
The warmest sea water temperatures in Glenan Islands are found in August when they peak at 18°C (64°F) and lowest in February when they dip to 11°C (51°F).
The sea is best for swimming between June and November when the temperature is above 14°C (57°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
The wettest month in Glenan Islands is February with 1.7cm (0.7inches) of rain and January has the most days of rain with 19.9 days with some rain, a wet time to visit the beach.
The driest month in Glenan Islands is September with 0cm (0inches) of rain and the least days of rain with 10.6 days with some rain, a pretty wet time to visit the beach.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
