July weather forecast
New Haven, CT

The greeny New Haven Green in Connecticut, with the rest of the city and a far away dramatic landscape
The greeny New Haven Green in Connecticut, with the rest of the city and a far away dramatic landscape

Weather in July

July, the same as June, is a moderately hot summer month in New Haven, Connecticut, with an average temperature ranging between max 80.4°F (26.9°C) and min 67.6°F (19.8°C).

Temperature

July is the warmest month, with an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 67.6°F (19.8°C).

Humidity

The average relative humidity in July is 75%.

Rainfall

In New Haven, it is raining for 18 days, with typically 3.43" (87mm) of accumulated precipitation. In New Haven, during the entire year, the rain falls for 167.2 days and collects up to 35.71" (907mm) of precipitation.

Snowfall

In New Haven, snow does not fall in May through October.

Ocean temperature

In New Haven, the average water temperature is 71.1°F (21.7°C).
Note: For swimming, a surface water temperature of 71.1°F (21.7°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In July, the average length of the day in New Haven is 14h and 49min.
On the first day of July, sunrise is at 5:22 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:10 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the warmest month in New Haven?

The warmest month in New Haven, Connecticut, is July, with an average high-temperature of 80.4°F (26.9°C) and an average low-temperature of 67.6°F (19.8°C).

What is the temperature in July in New Haven?

In July, in New Haven, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 67.6°F (19.8°C).

What is the average humidity in July in New Haven?

In New Haven, Connecticut, the average relative humidity in July is 75%.

How much does it rain in New Haven in July?

In New Haven, Connecticut, during July, the rain falls for 18 days and regularly aggregates up to 3.43" (87mm) of precipitation.

When it does not snow in New Haven?

In New Haven, Connecticut, snow does not fall in May through October.

How cold is the water in July in New Haven?

In New Haven, the average seawater temperature in July is 71.1°F (21.7°C). For swimming, a surface water temperature of 71.1°F (21.7°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

How many hours of daylight does New Haven have in July?

In July, the average day length in New Haven is 14h and 49min.

What time are sunrise and sunset in July in New Haven?

In July, on the first day of the month, sunrise is at 5:22 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:10 pm EDT.

What month has the most sunshine in New Haven?

With an average of 10.6h of sunshine, July has the most sunshine of the year in New Haven, Connecticut.

How long on average sun shines in July in New Haven?

The average sunshine duration in July in New Haven, Connecticut, is 10.6h.

When is the highest UV index in New Haven?

June through August, with an average maximum UV index of 6, are months with the highest UV index in New Haven, Connecticut.

How high is the UV index in July in New Haven?

In New Haven, Connecticut, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
New Haven, CT

Average temperature in July - New Haven, CT
  • Average high temperature in July: 80.4°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in July
New Haven, CT

Average pressure in July - New Haven, CT
  • Average pressure in July: 29.95"Hg

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

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Average wind speed in July
New Haven, CT

Average wind speed in July - New Haven, CT
  • Average wind speed in July: 6.8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in July
New Haven, CT

Average humidity in July - New Haven, CT
  • Average humidity in July: 75%

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

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Average rainfall in July
New Haven, CT

Average rainfall in July - New Haven, CT
  • Average rainfall in July: 3.43"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in July
New Haven, CT

Average rainfall days in July - New Haven, CT
  • Average rainfall days in July: 18 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall in July
New Haven, CT

Average snowfall in July - New Haven, CT
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
New Haven, CT

Average snowfall days in July - New Haven, CT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in July
New Haven, CT

Average sea temperature in July - New Haven, CT
  • Average sea temperature in July: 71°F

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (38.5°F).

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Average daylight in July /
Average sunshine in July
New Haven, CT

Average daylight in July / Average sunshine in July - New Haven, CT
  • Average daylight in July: 14h and 49min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

  • Average sunshine in July: 10h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in July
New Haven, CT

Average sunshine days in July - New Haven, CT
  • Average sunshine days in July: 11.6 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is August (11.3 days).

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Average UV index in July
New Haven, CT

Average UV index in July - New Haven, CT
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The 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
New Haven, CT

Average cloud cover in July - New Haven, CT
  • Average cloud cover in July: 31

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in July
New Haven, CT

Average visibility in July - New Haven, CT
  • Average visibility in July: 6mi

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

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