June weather forecast and climate
Greenwich, CT

The straight road of North Street cutting through the green leafy suburbs of the scenic Greenwich City in Connecticut
The straight road of North Street cutting through the green leafy suburbs of the scenic Greenwich City in Connecticut

Weather in June

June, the first month of the summer, in Greenwich, is a warm month, with temperature in the range of an average low of 61.5°F (16.4°C) and an average high of 74.7°F (23.7°C).

Temperature

In Greenwich, the average high-temperature slightly increases, from a comfortable 66.2°F (19°C) in May, to a warm 74.7°F (23.7°C). In Greenwich, in June, the average low-temperature is 61.5°F (16.4°C).

Humidity

In June, the average relative humidity in Greenwich is 74%.

Rainfall

In Greenwich, during June, the rain falls for 17 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Greenwich, during the entire year, the rain falls for 165.6 days and collects up to 37.64" (956mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In Greenwich, Connecticut,, the average water temperature is 63°F (17.2°C).
Note: For most, swimming in 63°F (17.2°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).

Daylight

With an average of 15.1h of daylight, June has the longest days of the year in Greenwich.

Sunshine

In June, the average sunshine in Greenwich is 9.5h.

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 hazard from unsafe exposure to the UV radiation for average individuals.
Note: In June, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in June in Greenwich?

In June, the average relative humidity in Greenwich, Connecticut, is 74%.

How much does it rain in Greenwich in June?

In Greenwich, Connecticut, in June, it is raining for 17 days, with typically 3.27" (83mm) of accumulated precipitation.

When it does not snow in Greenwich?

May through October are months without snowfall in Greenwich, Connecticut.

How cold is the water in June in Greenwich?

In Greenwich, the average seawater temperature in June is 63°F (17.2°C). For swimming, a surface water temperature of 63°F (17.2°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 Greenwich?

The month with the longest days in Greenwich is June, with an average of 15.1h of daylight.

What is the average length of the day in June in Greenwich?

The average length of the day in June is 15.1h.

How long on average sun shines in June in Greenwich?

The average sunshine in June in Greenwich, Connecticut, is 9.5h.

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

Months with the highest UV index in Greenwich are June through August, with an average maximum UV index of 6.

What is the UV index intensity in June in Greenwich?

In June, the average daily maximum UV index in Greenwich, Connecticut, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.

Average temperature in June
Greenwich, CT

Average temperature in June - Greenwich, CT
  • Average high temperature in June: 74.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.8°F).

  • Average low temperature in June: 61.5°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in June
Greenwich, CT

Average pressure in June - Greenwich, CT
  • Average pressure in June: 29.93"

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

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Average wind speed in June
Greenwich, CT

Average wind speed in June - Greenwich, CT
  • Average wind speed in June: 7mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in June
Greenwich, CT

Average humidity in June - Greenwich, CT
  • Average humidity in June: 74%

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

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Average rainfall in June
Greenwich, CT

Average rainfall in June - Greenwich, CT
  • Average rainfall in June: 3.27"

The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.4").

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Average rainfall days in June
Greenwich, CT

Average rainfall days in June - Greenwich, CT
  • Average rainfall days in June: 17 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in June
Greenwich, CT

Average snowfall in June - Greenwich, CT
  • Average snowfall in June: 0"

The month with the highest snowfall is February (2.52").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Greenwich, CT

Average snowfall days in June - Greenwich, CT
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (7.2 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in June
Greenwich, CT

Average sea temperature in June - Greenwich, CT
  • Average sea temperature in June: 63°F

The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).

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Average daylight in June /
Average sunshine in June
Greenwich, CT

Average daylight in June / Average sunshine in June - Greenwich, CT
  • Average daylight in June: 15.1h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in June: 9.5h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in June
Greenwich, CT

Average sunshine days in June - Greenwich, CT
  • Average sunshine days in June: 10.7 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in June
Greenwich, CT

Average UV index in June - Greenwich, CT
  • Average UV index in June: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in June
Greenwich, CT

Average cloud cover in June - Greenwich, CT
  • Average cloud cover in June: 37

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in June
Greenwich, CT

Average visibility in June - Greenwich, CT
  • Average visibility in June: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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