Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Jamestown's temperatures tend to reach their peak averages in July, with a high of 78.3°F (25.7°C) and a low of 66.7°F (19.3°C).Humidity
The average relative humidity in July is 80%.Rainfall
In Jamestown, in July, it is raining for 14.5 days, with typically 2.01" (51mm) of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.Snowfall
In Jamestown, snow does not fall in April, June through October.Ocean temperature
In July, the average ocean temperature in Jamestown, Rhode Island, is 67.5°F (19.7°C).Note: For most individuals, swimming in 67.5°F (19.7°C) is not a pleasant experience. The difficulty in managing breathing increases 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 50min.On the first day of July in Jamestown, sunrise is at 5:15 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:03 pm EDT.
Sunshine
In Jamestown, the average sunshine in July is 10.3h.UV index
The months with the highest UV index in Jamestown, Rhode Island, are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during July translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Jamestown?
What is the usual temperature for Jamestown in July?
What is the average humidity in July in Jamestown?
How many days does it rain in July in Jamestown?
When it does not snow in Jamestown?
How cold is the water in July in Jamestown?
What is the average length of the day in July in Jamestown?
What time are sunrise and sunset in July in Jamestown?
How long on average sun shines in July in Jamestown?
When is the highest UV index in Jamestown?
What is the UV index intensity in July in Jamestown?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
Average daylight in July /
Average sunshine in July
Jamestown, RI
- 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 2min
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).
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).
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).
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).
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).
Jamestown, Rhode Island, USA
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