Weather in Illinois, United States in July

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Visiting Illinois, United States in July

July is one of the best months to visit Illinois for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

July has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. 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. July has total rainfall of 9.2cm (3.6inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a cold 17°C (63°F). July is too cold for swimming in Illinois for any length of time, unless you have a wetsuit.

Also consider visiting Illinois in one of the other best months of June, August, September, for the best beach weather.

Also consider one of our other suggestions for July.

Can you sunbathe in Illinois in July?

Yes, July is a good time for sunbathing in Illinois.

July has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. 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. July has total rainfall of 9.2cm (3.6inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days.

More about July temperature and sunshine.

Can you swim in Illinois in July?

No, July is too cold for swimming in Illinois for any length of time, with the sea water at 17°C (63°F), unless you have a wetsuit.

More about July sea temperatures.

Is July a good time to holiday in Illinois?

Yes, July is a good time for a holiday in Illinois.

July has average maximum temperatures of 29°C (85°F) which is very warm and perfect for sunbathing on clear days. 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. July has total rainfall of 9.2cm (3.6inches) making it mostly dry with only intermittent light showers. There are only 12.1 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a cold 17°C (63°F). July is too cold for swimming in Illinois for any length of time, unless you have a wetsuit.

More about the July temperatures and sunshine.

Is Illinois warm in July?

Yes, Illinois is very warm and perfect for sunbathing on clear days in July.

The average maximum temperature in Illinois in July is 29°C (85°F). The average maximum temperature is 27°C (80°) in the previous month and 28°C (82°F) in the next month.

The average temperature in Illinois in July is 24°C (76°F). The average temperature is 22°C (71°F) in the previous month and 23°C (74°F) in the next month.

More info about the July temperatures and sunshine.

How sunny is Illinois in July?

The average day light hours per day in Illinois in July are 14.9. 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.

More about July sunshine.

Temperature in Illinois in July

The average maximum temperature in Illinois in July is 29°C (85°F). The average maximum temperature is 27°C (80°F) in the previous month and 28°C (82°F) in the next month.

The average temperature in Illinois in July is 24°C (76°F). The average temperature is 22°C (71°F) in the previous month and 23°C (74°F) in the next month.

The average minimum temperature in Illinois in July is 20°C (68°F). The minimum temperature is 17°C (63°F) in the previous month and 19°C (67°F) in the next month.

Sunshine in Illinois in July

During July the average day light hours are 14.9 per day in Illinois. 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.

The ultraviolet index in Illinois in July is typically 9.7 during July. 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.

Sea Temperature in Illinois in July

The average sea water temperature in Illinois in July is 17°C (62.6°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in Illinois in July

The average total rainfall in Illinois in July is 9.2cm (3.6inches) and on average there are 12.1 rainy days in July making it a pretty wet time to visit the beach.

Humidity in Illinois in July

The maximum dew point (an indicator of humidity) in Illinois in July is 19°C (66°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 17°C (62°F) in the previous month and 19°C (19°F) in the next month.

The average maximum relative humidity in Illinois in July is typically 82.3%. The maximum relative humidity is 82.3% in the previous month and 84% in the next month.

The average relative humidity in Illinois in July is typically 62.2%. The average relative humidity is 62.3% in the previous month and 65.2% in the next month.

Wind Speed in Illinois in July

The average maximum wind speed in Illinois in July is typically 28KM/H (17MPH). The average maximum wind speed is 30KM/H (18MPH) in the previous month and 26KM/H (16MPH) in the next month.

The average wind speed in Illinois in July is typically 13KM/H (8MPH). The average wind speed is 14KM/H (8MPH) in the previous month and 12KM/H (7MPH) in the next month.

The average wind direction in Illinois in July is from the South West.

Monthly Averages

Suggested Beaches in July

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