June weather forecastPortsmouth, RI
June
Weather in June
June in Portsmouth, Rhode Island, introduces the locals and tourists to the official start of summer. Temperatures peak to an average high of 70.5°F (21.4°C), setting the stage for a warm July. Though rainfall gets a minor boost, the number of rainy days remains comparable to May. What's worth noting is that cloud cover decreases, paving the way for uninterrupted sunlight. While the sea breeze offers some relief, high humidity levels can make the afternoons feel a bit oppressive.Temperature
The beginning of June in Portsmouth signals a minor rise in the average high-temperature, moving from a comfortable 62.6°F (17°C) in May to a pleasant 70.5°F (21.4°C). In June, Portsmouth's temperature tends to fall to an average low of 58.8°F (14.9°C) during the night.Humidity
With an average relative humidity of 81%, June is the most humid month.Rainfall
In Portsmouth, in June, it is raining for 14.5 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 148.1 rainfall days, and 29.65" (753mm) of precipitation is accumulated.Snowfall
April, June through October are months without snowfall.Daylight
With an average of 15h and 6min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:12 am and sunset at 8:13 pm. On the last day of June, sunrise is at 5:14 am and sunset at 8:23 pm EDT.
Sunshine
In Portsmouth, the average sunshine in June is 9.2h.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 hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Portsmouth, RI
- Average high temperature in June: 70.5°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 June: 58.8°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 June
Portsmouth, RI
- Average pressure in June: 29.93"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 June
Portsmouth, RI
- Average wind speed in June: 8.8mph
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 June
Portsmouth, RI
- Average humidity in June: 81%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is March (73%).
Average rainfall in June
Portsmouth, RI
- Average rainfall in June: 2.44"
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 June
Portsmouth, RI
- Average rainfall days in June: 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 June
Portsmouth, RI
- Average snowfall in June: 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 June
Portsmouth, RI
- Average snowfall days in June: 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 daylight in June /
Average sunshine in June
Portsmouth, RI
- Average daylight in June: 15h and 6min
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 June: 9h and 12min
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 June
Portsmouth, RI
- Average sunshine days in June: 13.4 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 June
Portsmouth, RI
- Average UV index in June: 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 June
Portsmouth, RI
- Average cloud cover in June: 39
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 June
Portsmouth, RI
- Average visibility in June: 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).
