June weather forecast
Old Greenwich, CT

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Weather in June

June marks the onset of summer in Old Greenwich, offering long, warm days that encourage outdoor activities. The radiant sunshine and low wind speed create a perfect blend for beach-goers. While the weather remains relatively dry, occasional breeze from the seas adds a refreshing touch to the otherwise warm climate. It's worth noting that in June, the sea temperature increases significantly to 63°F (17.2°C), making it a popular time for water-related activities. As sunset is delayed to the later part of the evening, residents have more daylight hours to engage in their favorite summertime pursuits.

Temperature

A slight uplift in the average high-temperature marks June in Old Greenwich, adjusting from May's enjoyable 65.8°F (18.8°C) to a moderately hot 74.7°F (23.7°C). An average low-temperature of 61.7°F (16.5°C) marks the month of June in Old Greenwich.

Humidity

February, May, June and December, with an average relative humidity of 75%, are the most humid months.

Rainfall

In Old Greenwich, Connecticut, in June, during 16.9 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Old Greenwich, during the entire year, the rain falls for 166.6 days and collects up to 38.07" (967mm) of precipitation.

Snowfall

May through October are months without snowfall.

Ocean temperature

In Old Greenwich, in June, the average water temperature is 63°F (17.2°C).
Note: In water with a temperature of 63°F (17.2°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).

Daylight

June has the longest days of the year, with an average of 15h and 6min of daylight.
On the first day of the month, sunrise is at 5:23 am and sunset at 8:20 pm. On the last day of June, in Old Greenwich, Connecticut, sunrise is at 5:25 am and sunset at 8:30 pm EDT.

Sunshine

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

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 risk from unsafe exposure to UV radiation for the ordinary person.
Note: In June, a daily maximum UV index of 6 leads to the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the usual temperature for Old Greenwich in June?

In Old Greenwich, in June, the average high-temperature is 74.7°F (23.7°C), and the average low-temperature is 61.7°F (16.5°C).

What are the most humid months in Old Greenwich?

The months with the highest humidity are February, May, June and December, with an average relative humidity of 75%.

What is the average humidity in June in Old Greenwich?

In June, the average relative humidity is 75%.

How much does it rain in Old Greenwich in June?

In Old Greenwich, in June, it is raining for 16.9 days, with typically 3.27" (83mm) of accumulated precipitation.

When it does not snow in Old Greenwich?

In Old Greenwich, snow does not fall in May through October.

How cold is the water in June in Old Greenwich?

In Old Greenwich, Connecticut, in June, the average water temperature is 63°F (17.2°C). Swimming in 63°F (17.2°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

When are the longest days in Old Greenwich?

The month with the longest days in Old Greenwich, Connecticut, is June, with an average of 15h and 6min of daylight.

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

The average day length in June is 15h and 5min.

When are sunrise and sunset in June in Old Greenwich?

On the first day of June in Old Greenwich, Connecticut, sunrise is at 5:23 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:30 pm EDT.

How many hours of sunshine does Old Greenwich have in June?

In June, the average sunshine duration is 9.5h.

What are the months with the highest UV index in Old Greenwich?

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

How high is the UV index in June in Old Greenwich?

In June, the average daily maximum UV index in Old Greenwich, Connecticut, is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJuneJASOND
May
June
Jul
Average high temperature
65.8°F 18.8°C
74.7°F 23.7°C
81.9°F 27.7°C
Average low temperature
53.2°F 11.8°C
61.7°F 16.5°C
69.3°F 20.7°C
Average pressure
30.01" 762mmHg
29.93" 760mmHg
29.96" 761mmHg
Average wind speed
7.6mph 12.2km/h
7.1mph 11.4km/h
6.6mph 10.6km/h
Average max. wind speed
8.2mph 13.2km/h
7.7mph 12.4km/h
7.3mph 11.7km/h
Average wind speed gusts
12.6mph 20.3km/h
11.6mph 18.7km/h
10.6mph 17.1km/h
Average humidity
75%
75%
73%
Average rainfall
3.11" 79mm
3.27" 83mm
4.13" 105mm
Average rainfall days
17.4
16.9
17.8
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
51.4°F 10.8°C
63°F 17.2°C
70.9°F 21.6°C
Average daylight
14h 3min
15h 1min
14h 5min
Average sunshine
8h 4min
9h 3min
10h 3min
Average sunshine days
11.7
11.1
11.3
Average UV index
5
6
6
Average cloud cover
44%
37%
32%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in June
Old Greenwich, CT

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

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in June: 61.7°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in June
Old Greenwich, CT

Average pressure in June - Old Greenwich, CT
  • 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).

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Average wind speed in June
Old Greenwich, CT

Average wind speed in June - Old Greenwich, CT
  • Average wind speed in June: 7.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in June
Old Greenwich, CT

Average humidity in June - Old Greenwich, CT
  • Average humidity in June: 75%

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

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Average rainfall in June
Old Greenwich, CT

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

The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.44").

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Average rainfall days in June
Old Greenwich, CT

Average rainfall days in June - Old Greenwich, CT
  • Average rainfall days in June: 16.9 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in June
Old Greenwich, CT

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

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Old Greenwich, CT

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

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in June
Old Greenwich, CT

Average sea temperature in June - Old 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
Old Greenwich, CT

Average daylight in June / Average sunshine in June - Old Greenwich, CT
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in June
Old Greenwich, CT

Average sunshine days in June - Old Greenwich, CT
  • Average sunshine days in June: 11.1 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in June
Old Greenwich, CT

Average UV index in June - Old Greenwich, CT
  • 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).

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Average cloud cover in June
Old Greenwich, CT

Average cloud cover in June - Old 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
Old Greenwich, CT

Average visibility in June - Old Greenwich, CT
  • 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).

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Old Greenwich, Connecticut, USA

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