Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average sea temperature in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
The shift from May to June sees a slight increase in the average high-temperature, transitioning from a comfortable 62.6°F (17°C) to a pleasant 71.2°F (21.8°C). The month of June shows a minor drop from daytime temperatures, generally recording a low average of 63.1°F (17.3°C).Humidity
May and June, with an average relative humidity of 77%, are the most humid months.Rainfall
In Port Jefferson, in June, it is raining for 14.9 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
In Port Jefferson, snow does not fall in April through September.Ocean temperature
In Port Jefferson, in June, the average water temperature is 64.6°F (18.1°C).Note: A majority do not enjoy swimming in water at 64.6°F (18.1°C). The difficulty in controlling breathing increases progressively as the temperature dips below 69.8°F (21°C).
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 5:22 am and sunset at 8:18 pm. On the last day of June, in Port Jefferson, sunrise is at 5:23 am and sunset at 8:28 pm EDT.
Sunshine
In June, the average sunshine is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In June, a regular UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the usual temperature for Port Jefferson in June?
What are the most humid months in Port Jefferson?
What is the average humidity in June in Port Jefferson?
How many days does it rain in June in Port Jefferson?
When it does not snow in Port Jefferson?
What is the ocean temperature in June in Port Jefferson?
When are the longest days in Port Jefferson?
How many hours of daylight does Port Jefferson have in June?
What time are sunrise and sunset in June in Port Jefferson?
How many hours of sunshine does Port Jefferson have in June?
When is the highest UV index in Port Jefferson?
What is the UV index intensity in June in Port Jefferson?
Average temperature in June
Port Jefferson, NY
- Average high temperature in June: 71.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in June: 63.1°F
The months with the highest average low temperature are July and August (71.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in June
Port Jefferson, NY
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Port Jefferson, NY
- Average wind speed in June: 8.6mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in June
Port Jefferson, NY
- Average humidity in June: 77%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in June
Port Jefferson, NY
- Average rainfall in June: 2.72"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in June
Port Jefferson, NY
- Average rainfall days in June: 14.9 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in June
Port Jefferson, NY
- Average snowfall in June: 0"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in June
Port Jefferson, NY
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in June
Port Jefferson, NY
- Average sea temperature in June: 64.6°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in June /
Average sunshine in June
Port Jefferson, NY
- Average daylight in June: 15h and 1min
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 June: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in June
Port Jefferson, NY
- Average sunshine days in June: 13.1 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13 days).
Average UV index in June
Port Jefferson, NY
- 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, November and December (UV index 2).
Average cloud cover in June
Port Jefferson, NY
- Average cloud cover in June: 35
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in June
Port Jefferson, NY
- 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).
Port Jefferson, New York, USA
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