July weather forecast
Old Saybrook, CT

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Weather in July

In July, Old Saybrook's weather exhibits quintessential summer conditions. Temperatures are generally high, peaking for the year at 79.7°F (26.5°C). Long daylight hours and equally long sunshine hours mark July as the sunniest month in Old Saybrook. The skies are mostly clear, with the lowest average cloud coverage of the year, enhancing the summery feel. Meanwhile, sea temperatures improve considerably, attracting beach-goers and water sport enthusiasts to the shore.

Temperature

With average high and low temperatures of 79.7°F (26.5°C) and 66.6°F (19.2°C) respectively, July is Old Saybrook's warmest month.

Humidity

May through July, with an average relative humidity of 78%, are the most humid months in Old Saybrook.

Rainfall

In Old Saybrook, in July, during 17 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, in Old Saybrook, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Ocean temperature

In Old Saybrook, the average seawater temperature in July is 69.4°F (20.8°C).
Note: For the majority, swimming in water with a temperature of 69.4°F (20.8°C) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In July, the average length of the day is 14h and 49min.
On the first day of the month, sunrise is at 5:20 am and sunset at 8:26 pm. On the last day of July, in Old Saybrook, sunrise is at 5:44 am and sunset at 8:07 pm EDT.

Sunshine

The average sunshine in July in Old Saybrook is 10.5h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Old Saybrook. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In July, the UV index of 6 transforms into the following advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What part of the year is the hottest in Old Saybrook?

July is Old Saybrook's warmest month, registering average high temperatures of 79.7°F (26.5°C) and lows of 66.6°F (19.2°C).

What is the average July temperature in Old Saybrook?

The high-temperature, in July, in Old Saybrook, records 79.7°F (26.5°C), while the low-temperature is 66.6°F (19.2°C).

What are the most humid months in Old Saybrook?

The months with the highest humidity in Old Saybrook, Connecticut, are May through July, with an average relative humidity of 78%.

What is the average humidity in July in Old Saybrook?

In July, the average relative humidity in Old Saybrook is 78%.

How much does it rain in Old Saybrook in July?

In Old Saybrook, during July, the rain falls for 17 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Old Saybrook?

June through October are months without snowfall in Old Saybrook.

What is the ocean temperature in July in Old Saybrook?

In Old Saybrook, in July, the average water temperature is 69.4°F (20.8°C). For most, swimming in 69.4°F (20.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in July in Old Saybrook?

In Old Saybrook, Connecticut, the average day length in July is 14h and 49min.

When is the sunrise / sunset in July in Old Saybrook?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:26 pm. On the last day of the month, in Old Saybrook, sunrise is at 5:44 am and sunset at 8:07 pm EDT.

How long on average sun shines in July in Old Saybrook?

In Old Saybrook, Connecticut, the average sunshine duration in July is 10.5h.

When is the highest UV index in Old Saybrook?

The months with the highest UV index in Old Saybrook are June through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Old Saybrook?

In Old Saybrook, Connecticut, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
73°F 22.8°C
79.7°F 26.5°C
78.6°F 25.9°C
Average low temperature
58.8°F 14.9°C
66.6°F 19.2°C
65.7°F 18.7°C
Average pressure
29.93" 760mmHg
29.95" 761mmHg
29.98" 761mmHg
Average wind speed
7.5mph 12.1km/h
7.1mph 11.4km/h
7.1mph 11.4km/h
Average max. wind speed
8.1mph 13km/h
7.7mph 12.4km/h
7.8mph 12.6km/h
Average wind speed gusts
12.2mph 19.6km/h
11.6mph 18.7km/h
11.6mph 18.7km/h
Average humidity
78%
78%
77%
Average rainfall
2.91" 74mm
3.11" 79mm
2.91" 74mm
Average rainfall days
16.5
17
16.4
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
62°F 16.7°C
69.5°F 20.8°C
72.1°F 22.3°C
Average daylight
15h 1min
14h 5min
13h 5min
Average sunshine
9h 3min
10h 3min
10h 4min
Average sunshine days
11.8
11.7
11.9
Average UV index
6
6
6
Average cloud cover
37%
32%
29%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in July
Old Saybrook, CT

Average temperature in July - Old Saybrook, CT
  • Average high temperature in July: 79.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in July
Old Saybrook, CT

Average pressure in July - Old Saybrook, 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).

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Average wind speed in July
Old Saybrook, CT

Average wind speed in July - Old Saybrook, CT
  • Average wind speed in July: 7.1mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in July
Old Saybrook, CT

Average humidity in July - Old Saybrook, CT
  • Average humidity in July: 78%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in July
Old Saybrook, CT

Average rainfall in July - Old Saybrook, CT
  • Average rainfall in July: 3.11"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in July
Old Saybrook, CT

Average rainfall days in July - Old Saybrook, CT
  • Average rainfall days in July: 17 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

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Average snowfall in July
Old Saybrook, CT

Average snowfall in July - Old Saybrook, CT
  • Average snowfall in July: 0"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in July
Old Saybrook, CT

Average snowfall days in July - Old Saybrook, CT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (7 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
Old Saybrook, CT

Average sea temperature in July - Old Saybrook, 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).

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Average daylight in July /
Average sunshine in July
Old Saybrook, CT

Average daylight in July / Average sunshine in July - Old Saybrook, 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 18min).

  • 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 48min).

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Average sunshine days in July
Old Saybrook, CT

Average sunshine days in July - Old Saybrook, CT
  • Average sunshine days in July: 11.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in July
Old Saybrook, CT

Average UV index in July - Old Saybrook, 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
Old Saybrook, CT

Average cloud cover in July - Old Saybrook, CT
  • Average cloud cover in July: 32

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
Old Saybrook, CT

Average visibility in July - Old Saybrook, 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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Old Saybrook, Connecticut, USA

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