July weather forecast
Jamestown, RI

Weather in July

July is a moderately hot summer month in Jamestown, Rhode Island, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 78.3°F (25.7°C).

Temperature

July is the warmest month, with an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 66.7°F (19.3°C).

Humidity

In July, the average relative humidity is 80%.

Rainfall

In Jamestown, in July, it is raining for 14.5 days, with typically 2.01" (51mm) of accumulated precipitation. In Jamestown, Rhode Island, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.

Snowfall

In Jamestown, Rhode Island, snow does not fall in April, June through October.

Ocean temperature

In July, the average ocean temperature is 67.5°F (19.7°C).
Note: For swimming, a surface water temperature of 67.5°F (19.7°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 Jamestown, the average length of the day in July is 14h and 50min.
On the first day of the month, sunrise is at 5:15 am and sunset at 8:23 pm. On the last day of July, in Jamestown, sunrise is at 5:39 am and sunset at 8:04 pm EDT.

Sunshine

In Jamestown, the average sunshine in July is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Jamestown. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
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.
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FAQ

What is the warmest month in Jamestown?

With an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month in Jamestown, Rhode Island.

What is the temperature in July in Jamestown?

In Jamestown, Rhode Island, in July, the average high-temperature is 78.3°F (25.7°C), and the average low-temperature is 66.7°F (19.3°C).

What is the average humidity in July in Jamestown?

In July, the average relative humidity is 80%.

How much does it rain in Jamestown in July?

In July, in Jamestown, the rain falls for 14.5 days. Throughout July, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Jamestown?

April, June through October are months without snowfall.

What is the ocean temperature in July in Jamestown?

In Jamestown, in July, the average water temperature is 67.5°F (19.7°C). For most, swimming in 67.5°F (19.7°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 Jamestown?

In July, the average day length in Jamestown, Rhode Island, is 14h and 50min.

When are sunrise and sunset in July in Jamestown?

On the first day of July in Jamestown, Rhode Island, sunrise is at 5:15 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:04 pm EDT.

How many hours of sunshine does Jamestown have in July?

In July, the average sunshine duration is 10.3h.

What are the months with the highest UV index in Jamestown?

The months with the highest UV index in Jamestown, Rhode Island, are June through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Jamestown?

In Jamestown, Rhode Island, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from 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
Jamestown, RI

Average temperature in July - Jamestown, RI
  • Average high temperature in July: 78.3°F

The warmest month (with the highest average high temperature) is July (78.3°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 (26.4°F).

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Average pressure in July
Jamestown, RI

Average pressure in July - Jamestown, RI
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Jamestown, RI

Average wind speed in July - Jamestown, RI
  • Average wind speed in July: 8.3mph

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

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Average humidity in July
Jamestown, RI

Average humidity in July - Jamestown, RI
  • Average humidity in July: 80%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is March (73%).

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Average rainfall in July
Jamestown, RI

Average rainfall in July - Jamestown, RI
  • Average rainfall in July: 2.01"

The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in July
Jamestown, RI

Average rainfall days in July - Jamestown, RI
  • Average rainfall days in July: 14.5 days

The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in July
Jamestown, RI

Average snowfall in July - Jamestown, RI
  • Average snowfall in July: 0"

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

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Average snowfall days in July
Jamestown, RI

Average snowfall days in July - Jamestown, RI
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in July
Jamestown, RI

Average sea temperature in July - Jamestown, RI
  • Average sea temperature in July: 67.4°F

The best month for swimming (with the highest average sea temperature) is August (69.6°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

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Average daylight in July /
Average sunshine in July
Jamestown, RI

Average daylight in July / Average sunshine in July - Jamestown, RI
  • Average daylight in July: 14h and 50min

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 14min).

  • Average sunshine in July: 10h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in July
Jamestown, RI

Average sunshine days in July - Jamestown, RI
  • Average sunshine days in July: 14.7 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is April (12.3 days).

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Average UV index in July
Jamestown, RI

Average UV index in July - Jamestown, RI
  • 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 and December (UV index 2).

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Average cloud cover in July
Jamestown, RI

Average cloud cover in July - Jamestown, RI
  • Average cloud cover in July: 32

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in July
Jamestown, RI

Average visibility in July - Jamestown, RI
  • 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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