June weather forecast
Islip, NY

Share

Weather in June

June, the first month of the summer in Islip, is a pleasant month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 71.4°F (21.9°C).

Temperature

Islip's weather in June shows a rise in the average high-temperature, moving up from May's comfortable 62.2°F (16.8°C) to a pleasant 71.4°F (21.9°C). Islip records a negligible downturn from daytime temperatures, averaging a low of 63.9°F (17.7°C) in the month of June.

Humidity

The months with the highest humidity in Islip are May and June, with an average relative humidity of 77%.

Rainfall

In Islip, in June, during 15.9 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

In Islip, New York, snow does not fall in April through September.

Ocean temperature

In June, the average ocean temperature is 64.6°F (18.1°C).
Note: For most individuals, swimming in 64.6°F (18.1°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

June has the longest days of the year in Islip, with an average of 15h and 0min of daylight.
On the first day of June in Islip, sunrise is at 5:23 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:28 pm EDT.

Sunshine

In Islip, the average sunshine in June is 10h.

UV index

The months with the highest UV index in Islip, New York, 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 unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during June, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Islip in June?

The average high-temperature, in June, in Islip, is 71.4°F (21.9°C), while the average low-temperature is 63.9°F (17.7°C).

What are the most humid months in Islip?

The months with the highest humidity in Islip are May and June, with an average relative humidity of 77%.

What is the average humidity in June in Islip?

In Islip, New York, the average relative humidity in June is 77%.

How many days does it rain in June in Islip?

In Islip, in June, it is raining for 15.9 days, with typically 2.91" (74mm) of accumulated precipitation.

When it does not snow in Islip?

April through September are months without snowfall in Islip.

What is the ocean temperature in June in Islip?

In Islip, in June, the average water temperature is 64.6°F (18.1°C). For most, swimming in 64.6°F (18.1°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).

When are the longest days in Islip?

With an average of 15h and 0min of daylight, June has the longest days of the year.

How many hours of daylight does Islip have in June?

The average day length in June in Islip is 15h and 3min.

When are sunrise and sunset in June in Islip?

In June, on the first day of the month, sunrise is at 5:23 am and sunset at 8:18 pm. On the last day of the month, in Islip, New York, sunrise is at 5:25 am and sunset at 8:28 pm EDT.

How long on average sun shines in June in Islip?

In Islip, the average sunshine duration in June is 10h.

What is the month with the highest UV index in Islip?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Islip, New York.

How high is the UV index in June in Islip?

In June, the average daily maximum UV index in Islip is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Islip, NY

Average temperature in June - Islip, NY
  • Average high temperature in June: 71.4°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in June: 63.9°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in June
Islip, NY

Average pressure in June - Islip, 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
Islip, NY

Average wind speed in June - Islip, NY
  • Average wind speed in June: 8.9mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).

Average humidity in June
Islip, NY

Average humidity in June - Islip, 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
Islip, NY

Average rainfall in June - Islip, NY
  • Average rainfall in June: 2.91"

The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in June
Islip, NY

Average rainfall days in June - Islip, NY
  • Average rainfall days in June: 15.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in June
Islip, NY

Average snowfall in June - Islip, NY
  • Average snowfall in June: 0"

The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in June
Islip, NY

Average snowfall days in June - Islip, NY
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in June
Islip, NY

Average sea temperature in June - Islip, 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
Islip, NY

Average daylight in June / Average sunshine in June - Islip, NY
  • Average daylight in June: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in June: 10h and 0min

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

Average sunshine days in June
Islip, NY

Average sunshine days in June - Islip, NY
  • Average sunshine days in June: 12.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in June
Islip, NY

Average UV index in June - Islip, 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 and December (UV index 2).

Average cloud cover in June
Islip, NY

Average cloud cover in June - Islip, NY
  • Average cloud cover in June: 33

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in June
Islip, NY

Average visibility in June - Islip, 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).

Islip, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location