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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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Tan
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Tan
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Tan
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Tan
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Sea
4°
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Sea
3°
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Sea
3°
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Sea
4°
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Sea
5°
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Sea
10°
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Sea
17°
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Sea
20°
Swim
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Sea
16°
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Sea
13°
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Sea
8°
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Sea
5°
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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 9.0°C (48.2°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 12.1 days of rain per month and 7.2 hours of sun per day.
The best months to visit Illinois 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 weather is perfect for sunbathing in the months from June to August when the maximum temperature reaches above 26°C (72°F)
The sea is best for swimming between June and October when the sea temperature is above the average 9°C (48°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
No, you can't sunbathe in Illinois 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.
The weather is best for sunbathing in the months from June to August when the maximum temperature reaches above 26°C (72°F)
More info about the annual temperatures and sunshine.
No, you can't swim in Illinois all year round.
The warmest sea water temperatures in Illinois are found in August when they peak at 20°C (68°F) and lowest in February when they dip to 3°C (37°F).
The sea temperature is above average for swimming between June and October when the sea temperature is above 9°C (48°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 hottest month in Illinois is July when the average maximum temperature is very warm and perfect for sunbathing on clear days 29°C (85°F), average temperature is 24°C (76°F) and average minimum temperature is 20°C (68°F).
More info about the annual temperatures and sunshine.
The coolest month in Illinois is January when the average maximum temperature is -0°C (32°F), average temperature is -4°C (25°F) and average minimum temperature is -7°C (19°F).
More info about the annual temperatures and sunshine
The driest month in Illinois is January with 3.8cm (1.5inches) of rain and February has the fewest days of rain with 10.2 days with some rain, a pretty wet time to visit the beach.
More info about the annual rainfall
The coldest sea water temperatures in Illinois are found in February when they dip to 3°C (37°F) which is extremely cold and not suitable for swimming. Taking a dip at this temperature would risk hypothermia.
More info about the annual sea temperatures.
The warmest sea water temperatures in Illinois are found in August when they peak at 20°C (68°F) which is comfortable for swimming though some may prefer warmer water.
More info about the annual sea temperatures.
The most humid month in Illinois is July with a dew point (an indicator of humidity) of 19°C (66°F) which is somewhat uncomfortable for most people in cities but fine on a beach.
More info about the annual humidity.
The least humid month in Illinois is January with a dew point of -5°C (24°F) which is a bit dry for some.
More info about the annual humidity.
The most windy month in Illinois is April when the average maximum windspeed is 33KM/H (20MPH) and the average wind speed is 18KM/H (11MPH).
More info about the annual wind conditions.
The hottest month in Illinois is July when the average maximum temperature is 29°C (85°F), average temperature is 24°C (76°F) and average minimum temperature is 20°C (68°F).
The coolest month in Illinois is January when the average maximum temperature is -0°C (-0°F), average temperature is -4°C (25°F) and average minimum temperature is -7°C (19°F).
The longest days in Illinois are in June, with an average of 15.2 hours of daylight per day. December has the shortest days with an average of 9.2 hours of daylight per day.
The sunniest days in Illinois are in July which has the most hours of sunshine per day. The sunshine percentage is 74% making it sunny and pleasant most of the time. The hours of sunshine per day are 11.0hrs making the days very long and bright.
December has the least sunshine. The sunshine percentage is 39% making it very cloudy and overcast with some periods of sunshine. There are 3.6 hours of sunshine per day.
The ultraviolet index is the highest in June when it reaches 9.7 and lowest in December when it reaches 1.5.
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 Illinois are found in August when they peak at 20°C (68°F) and lowest in February when they dip to 3°C (37°F).
The sea is best for swimming between June and October when the temperature is above 9°C (48°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.
The wettest month in Illinois is August with 11.5cm (4.5inches) of rain and June has the most days of rain with 13.8 days with some rain, a pretty wet time to visit the beach.
The driest month in Illinois is January with 3.8cm (1.5inches) of rain and February has the fewest days of rain with 10.2 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.
