June weather forecast
Chelsea, MA

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Weather in June

The first month of the summer, June, is a warm month in Chelsea, Massachusetts, with temperature in the range of an average low of 57.6°F (14.2°C) and an average high of 74.3°F (23.5°C).

Temperature

June's onset brings a subtle temperature rise, moving from a comfortable 66.4°F (19.1°C) in May to a moderately hot 74.3°F (23.5°C). Throughout June, a steady low-temperature average of 57.6°F (14.2°C) is noted.

Humidity

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

Rainfall

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

Snowfall

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

Ocean temperature

In June, the average ocean temperature is 58.5°F (14.7°C).
Note: While a brief time in 58.5°F (14.7°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.

Daylight

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

Sunshine

In Chelsea, the average sunshine in June 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 value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature?

In June, the average high-temperature and low-temperature are 74.3°F (23.5°C) and 57.6°F (14.2°C) respectively.

What is the average humidity in June?

In June, the average relative humidity is 74%.

How many days does it rain in June?

In June, the rain falls for 13.6 days. Throughout June, 2.13" (54mm) of precipitation is accumulated.

When it does not snow?

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

Does it snow in Chelsea in June?

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

How cold is the water in June?

In June, the average ocean temperature 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?

June has the longest days of the year, 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 is 15h and 14min.

When are sunrise and sunset in June?

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, sunrise is at 5:10 am and sunset at 8:25 pm EDT.

How long on average sun shines in June?

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

What is the month with the highest UV index?

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

How high is the UV index in June?

In Chelsea, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

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).

Chelsea, Massachusetts, USA

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