July weather forecast and climate
Westport, CT

The colorful houses on the shores of Westport, Connecticut
The colorful houses on the shores of Westport, Connecticut

Weather in July

July, the same as June, is another warm summer month in Westport, Connecticut, with average temperature varying between 68.2°F (20.1°C) and 81.1°F (27.3°C).

Temperature

The warmest month is July, with an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 68.2°F (20.1°C).

Heat index

The average heat index in July is estimated at 85.6°F (29.8°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, pregnancy, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In July, the average relative humidity is 74%.

Rainfall

The month with the most rainfall is July when the rain falls for 18.1 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

May through October are months without snowfall in Westport.

Daylight

In July, the average length of the day in Westport is 14.8h.

Sunshine

The month with the most sunshine is July, with an average of 10.5h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Westport. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in Westport?

With an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 68.2°F (20.1°C), July is the warmest month in Westport, Connecticut.

What is the temperature in July in Westport?

The average high-temperature, in July, in Westport, is 81.1°F (27.3°C), while the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in July is estimated at 85.6°F (29.8°C).

What is the average humidity in July in Westport?

In Westport, the average relative humidity in July is 74%.

What is the rainiest month in Westport?

The month with the most rainfall in Westport is July when the rain falls for 18.1 days and typically aggregates up to 4.13" (105mm) of precipitation.

How many days does it rain in July in Westport?

In Westport, Connecticut, in July, during 18.1 rainfall days, 4.13" (105mm) of precipitation is typically accumulated.

When it does not snow in Westport?

May through October are months without snowfall in Westport.

What is the average length of the day in July in Westport?

The average length of the day in July is 14.8h.

What month has the most sunshine in Westport?

With an average of 10.5h of sunshine, July has the most sunshine of the year in Westport.

How many hours of sunshine does Westport have in July?

In July, the average sunshine in Westport is 10.5h.

When is the highest UV index in Westport?

Months with the highest UV index in Westport, Connecticut, are June through August, with an average maximum UV index of 6.

How high is the UV index in July in Westport?

The average daily maximum UV index in July in Westport, Connecticut, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in July
Westport, CT

Average temperature in July - Westport, CT
  • Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in July: 68.2°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in July
Westport, CT

Average pressure in July - Westport, CT
  • Average pressure in July: 29.96"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in July
Westport, CT

Average wind speed in July - Westport, CT
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in July
Westport, CT

Average humidity in July - Westport, CT
  • Average humidity in July: 74%

Months with the highest relative humidity are February, May and June (76%).
Months with the lowest relative humidity are April and November (72%).

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Average rainfall in July
Westport, CT

Average rainfall in July - Westport, CT
  • Average rainfall in July: 4.13"

The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.36").

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Average rainfall days in July
Westport, CT

Average rainfall days in July - Westport, CT
  • Average rainfall days in July: 18.1 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in July
Westport, CT

Average snowfall in July - Westport, CT
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.83").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Westport, CT

Average snowfall days in July - Westport, CT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (7.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Westport, CT

Average daylight in July / Average sunshine in July - Westport, CT
  • Average daylight in July: 14.8h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in July: 10.5h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in July
Westport, CT

Average sunshine days in July - Westport, CT
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (10 days).

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Average UV index in July
Westport, CT

Average UV index in July - Westport, CT
  • Average UV index in July: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in July
Westport, CT

Average cloud cover in July - Westport, CT
  • Average cloud cover in July: 31

Months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in July
Westport, CT

Average visibility in July - Westport, CT
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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