June weather forecast
Chelsea, MA

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Weather in June

The first month of the summer, June, is a moderately hot month in Chelsea, Massachusetts, with an average temperature varying between 74.3°F (23.5°C) and 57.6°F (14.2°C).

Temperature

June brings a slight increase in the average high-temperature, progressing from a refreshing 66.4°F (19.1°C) in May to a warm 74.3°F (23.5°C). In June, Chelsea's temperature tends to fall to an average low of 57.6°F (14.2°C) during the night.

Humidity

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

Rainfall

In June, in Chelsea, the rain falls for 13.6 days. Throughout June, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in Chelsea, there are 141.4 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Snowfall

In Chelsea, Massachusetts, snow does not fall in June through September.

Ocean temperature

In Chelsea, the average seawater temperature in June is 58.5°F (14.7°C).
Note: Swimming at temperatures less than 50°F (10°C) in 58.5°F (14.7°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.

Daylight

With an average of 15h and 12min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:09 am and sunset at 8:14 pm. On the last day of June, sunrise is at 5:10 am and sunset at 8:25 pm EDT.

Sunshine

The average sunshine in June in Chelsea is 9.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in June, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What is the average June temperature in Chelsea?

The high-temperature, in June, in Chelsea, is 74.3°F (23.5°C), while the low-temperature averages to 57.6°F (14.2°C).

What is the average humidity in June in Chelsea?

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

How many days does it rain in June in Chelsea?

In Chelsea, in June, during 13.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Chelsea?

June through September are months without snowfall in Chelsea, Massachusetts.

Does it snow in Chelsea in June?

In June, it doesn't snow. May is the latest month when it typically snows.

What is the water temperature in June in Chelsea?

In Chelsea, Massachusetts, the average seawater temperature in June is 58.5°F (14.7°C). Swimming in 58.5°F (14.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

When are the longest days in Chelsea?

June has the longest days of the year in Chelsea, with an average of 15h and 12min of daylight.

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

The average day length in June in Chelsea, Massachusetts, is 15h and 14min.

When are sunrise and sunset in June in Chelsea?

In June, on the first day of the month, sunrise is at 5:09 am and sunset at 8:14 pm. On the last day of the month, in Chelsea, Massachusetts, sunrise is at 5:10 am and sunset at 8:25 pm EDT.

How long on average sun shines in June in Chelsea?

In Chelsea, the average sunshine duration in June is 9.1h.

What are the months with the highest UV index in Chelsea?

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

How high is the UV index in June in Chelsea?

The average daily maximum UV index in June in Chelsea is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
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
Chelsea, MA

Average temperature in June - Chelsea, MA
  • Average high temperature in June: 74.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in June: 57.6°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in June
Chelsea, MA

Average pressure in June - Chelsea, MA
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in June
Chelsea, MA

Average wind speed in June - Chelsea, MA
  • Average wind speed in June: 6.8mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in June
Chelsea, MA

Average humidity in June - Chelsea, MA
  • Average humidity in June: 74%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).

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Average rainfall in June
Chelsea, MA

Average rainfall in June - Chelsea, MA
  • Average rainfall in June: 2.13"

The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").

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Average rainfall days in June
Chelsea, MA

Average rainfall days in June - Chelsea, MA
  • Average rainfall days in June: 13.6 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in June
Chelsea, MA

Average snowfall in June - Chelsea, MA
  • Average snowfall in June: 0"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Chelsea, MA

Average snowfall days in June - Chelsea, MA
  • Average snowfall days in June: 0 days

The months with the highest number of snowfall days are January and February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in June
Chelsea, MA

Average sea temperature in June - Chelsea, MA
  • Average sea temperature in June: 58.4°F

The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

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Average daylight in June /
Average sunshine in June
Chelsea, MA

Average daylight in June / Average sunshine in June - Chelsea, MA
  • Average daylight in June: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in June: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in June
Chelsea, MA

Average sunshine days in June - Chelsea, MA
  • Average sunshine days in June: 14.8 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (13 days).

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Average UV index in June
Chelsea, MA

Average UV index in June - Chelsea, MA
  • 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
Chelsea, MA

Average cloud cover in June - Chelsea, MA
  • Average cloud cover in June: 41

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in June
Chelsea, MA

Average visibility in June - Chelsea, MA
  • 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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Chelsea, Massachusetts, USA

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