June weather forecast
Roslyn Harbor, NY

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Weather in June

June, the first month of the summer in Roslyn Harbor, is a moderately hot month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 74.5°F (23.6°C).

Temperature

June's arrival coincides with a rise in the average high-temperature, moving from May's enjoyable 65.3°F (18.5°C) to a warm 74.5°F (23.6°C). Roslyn Harbor's temperature lowers to a mean of 63.1°F (17.3°C) during the nights in June.

Humidity

In June, the average relative humidity is 74%.

Rainfall

In Roslyn Harbor, in June, it is raining for 16.5 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Roslyn Harbor, there are 165.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

In Roslyn Harbor, snow does not fall in May through October.

Ocean temperature

In Roslyn Harbor, in June, the average water temperature is 64.9°F (18.3°C).
Note: Swimming in 64.9°F (18.3°C) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 69.8°F (21°C) to 59°F (15°C).

Daylight

The month with the longest days is June, with an average of 15h and 6min of daylight.
On the first day of the month, sunrise is at 5:24 am and sunset at 8:20 pm. On the last day of June, sunrise is at 5:26 am and sunset at 8:30 pm EDT.

Sunshine

In Roslyn Harbor, the average sunshine in June is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 in June translates into these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature in Roslyn Harbor?

The high-temperature in Roslyn Harbor during June is 74.5°F (23.6°C) and the low-temperature is 63.1°F (17.3°C).

What is the average humidity in June in Roslyn Harbor?

In Roslyn Harbor, New York, the average relative humidity in June is 74%.

How much does it rain in Roslyn Harbor in June?

In Roslyn Harbor, in June, it is raining for 16.5 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow in Roslyn Harbor?

May through October are months without snowfall in Roslyn Harbor, New York.

How cold is the water in June in Roslyn Harbor?

In Roslyn Harbor, the average seawater temperature in June is 64.9°F (18.3°C). For swimming, a surface water temperature of 64.9°F (18.3°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).

When are the longest days in Roslyn Harbor?

With an average of 15h and 6min of daylight, June has the longest days of the year in Roslyn Harbor, New York.

How many hours of daylight does Roslyn Harbor have in June?

In Roslyn Harbor, New York, the average day length in June is 15h and 4min.

When are sunrise and sunset in June in Roslyn Harbor?

In June, on the first day of the month, sunrise is at 5:24 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:30 pm EDT.

How long on average sun shines in June in Roslyn Harbor?

In June, the average sunshine duration in Roslyn Harbor, New York, is 9.9h.

When is the highest UV index in Roslyn Harbor?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Roslyn Harbor.

How high is the UV index in June in Roslyn Harbor?

In Roslyn Harbor, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Roslyn Harbor, NY

Average temperature in June - Roslyn Harbor, NY
  • Average high temperature in June: 74.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in June: 63.1°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in June
Roslyn Harbor, NY

Average pressure in June - Roslyn Harbor, NY
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in June
Roslyn Harbor, NY

Average wind speed in June - Roslyn Harbor, NY
  • Average wind speed in June: 7.6mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in June
Roslyn Harbor, NY

Average humidity in June - Roslyn Harbor, NY
  • Average humidity in June: 74%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

Average rainfall in June
Roslyn Harbor, NY

Average rainfall in June - Roslyn Harbor, NY
  • Average rainfall in June: 3.07"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in June
Roslyn Harbor, NY

Average rainfall days in June - Roslyn Harbor, NY
  • Average rainfall days in June: 16.5 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in June
Roslyn Harbor, NY

Average snowfall in June - Roslyn Harbor, NY
  • Average snowfall in June: 0"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Roslyn Harbor, NY

Average snowfall days in June - Roslyn Harbor, NY
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in June
Roslyn Harbor, NY

Average sea temperature in June - Roslyn Harbor, NY
  • Average sea temperature in June: 64.9°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in June /
Average sunshine in June
Roslyn Harbor, NY

Average daylight in June / Average sunshine in June - Roslyn Harbor, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in June
Roslyn Harbor, NY

Average sunshine days in June - Roslyn Harbor, NY
  • Average sunshine days in June: 11.3 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in June
Roslyn Harbor, NY

Average UV index in June - Roslyn Harbor, 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
Roslyn Harbor, NY

Average cloud cover in June - Roslyn Harbor, NY
  • Average cloud cover in June: 34

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in June
Roslyn Harbor, NY

Average visibility in June - Roslyn Harbor, 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).

Roslyn Harbor, New York, USA

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