July weather forecast
New London, CT

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A part of the city of New London, Connecticut, with intricate buildings overlooking the calm water
A part of the city of New London, Connecticut, with intricate buildings overlooking the calm water

July

Weather in July

July, in New London, Connecticut, presents itself as the peak of summer. This month features some of the warmest weather and longest hours of daylight. With an average temperature range of 66.7°F (19.3°C) to 78.6°F (25.9°C), no snowfall is recorded in July. Clear skies pleasantly partner with bonfires and firework displays, thus marking a cultural and atmospheric zenith in the city. As balmy days give way to mild nights, the summer season is enjoyed to its fullest.

Temperature

New London's warmest temperatures are experienced in July, with average high temperatures of 78.6°F (25.9°C) and lows of 66.7°F (19.3°C).

Humidity

In New London, Connecticut, the average relative humidity in July is 79%.

Rainfall

In July, in New London, the rain falls for 15.8 days. Throughout July, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.

Snowfall

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

Ocean temperature

In New London, in July, the average water temperature is 69.4°F (20.8°C).
Note: In 69.4°F (20.8°C), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 69.8°F (21°C).

Daylight

In New London, Connecticut, the average length of the day in July is 14h and 49min.
On the first day of the month, sunrise is at 5:19 am and sunset at 8:25 pm. On the last day of July, sunrise is at 5:43 am and sunset at 8:06 pm EDT.

Sunshine

In July, the average sunshine is 10.5h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In July, an average UV index of 6 transforms into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in New London?
In New London, July is identified by the average highest temperatures, reaching a peak of 78.6°F (25.9°C) and a low of 66.7°F (19.3°C).
What are the temperatures in New London in July?
The high-temperature, in July, in New London, is 78.6°F (25.9°C), while the low-temperature averages to 66.7°F (19.3°C).
What is the average humidity in July in New London?
The average relative humidity in July is 79%.
How many days does it rain in July in New London?
In New London, during July, the rain falls for 15.8 days and regularly aggregates up to 2.44" (62mm) of precipitation.
When it does not snow in New London?
May through October are months without snowfall in New London.
How cold is the water in July in New London?
In New London, Connecticut, in July, the average water temperature is 69.4°F (20.8°C). Swimming in 69.4°F (20.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).
What is the average length of the day in July in New London?
In New London, the average day length in July is 14h and 49min.
When are sunrise and sunset in July in New London?
In July, on the first day of the month, sunrise is at 5:19 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:06 pm EDT.
How long on average sun shines in July in New London?
In July, the average sunshine duration in New London is 10.5h.
What are the months with the highest UV index in New London?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in July in New London?
In New London, Connecticut, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
71.4°F
78.6°F
77.7°F
Average low temperature
59°F
66.7°F
66.2°F
Average pressure
29.93"Hg
29.95"Hg
29.98"Hg
Average wind speed
8.1mph
7.8mph
7.8mph
Average max. wind speed
8.8mph
8.4mph
8.4mph
Average wind speed gusts
13.4mph
12.6mph
12.5mph
Average humidity
80%
79%
78%
Average rainfall
2.72"
2.44"
2.36"
Average rainfall days
15
15.8
13.8
Average snowfall
0"
0"
0"
Average snowfall days
0
0
0
Average sea temperature
62°F
69.5°F
72.1°F
Average daylight
15h 1min
14h 5min
13h 5min
Average sunshine
9h 3min
10h 3min
10h 4min
Average sunshine days
12.8
13.4
14.6
Average UV index
6
6
6
Average cloud cover
37%
31%
29%
Average visibility
6mi
6mi
6mi
Average temperature in July - New London, CT
Average temperature in July
New London, CT
  • Average high temperature in July: 78.6°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in July: 66.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July - New London, CT
Average wind speed in July
New London, CT
  • Average wind speed in July: 7.8mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in July - New London, CT
Average humidity in July
New London, CT
  • Average humidity in July: 79%

The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).

Average rainfall in July - New London, CT
Average rainfall in July
New London, CT
  • Average rainfall in July: 2.44"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in July - New London, CT
Average rainfall days in July
New London, CT
  • Average rainfall days in July: 15.8 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).

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

The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in July - New London, CT
Average sea temperature in July
New London, CT
  • Average sea temperature in July: 69.5°F

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

Average daylight in July / Average sunshine in July - New London, CT
Average daylight in July /
Average sunshine in July
New London, CT
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in July - New London, CT
Average sunshine days in July
New London, CT
  • Average sunshine days in July: 13.4 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in July - New London, CT
Average UV index in July
New London, 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).

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

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in July - New London, CT
Average visibility in July
New London, 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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