June weather forecast
Boston, MA

A beautiful natural park with the George Washington Monument in Boston, Massachusetts
A beautiful natural park with the George Washington Monument in Boston, Massachusetts

Weather in June

June, the first month of the summer in Boston, is a warm month, with an average temperature varying between 74.3°F (23.5°C) and 57.6°F (14.2°C).

Temperature

In Boston, the average high-temperature in June slightly increases from a comfortable 66.4°F (19.1°C) in May to a moderately hot 74.3°F (23.5°C). The average low-temperature, in Boston, is 57.6°F (14.2°C).

Humidity

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

Rainfall

In June, the rain falls for 13.6 days. Throughout June, 2.13" (54mm) of precipitation is accumulated. In Boston, during the entire year, the rain falls for 141.4 days and collects up to 27.2" (691mm) of precipitation.

Snowfall

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

Ocean temperature

In Boston, the average water temperature is 58.5°F (14.7°C).
Note: Swimming in 58.5°F (14.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The month with the longest days is June, with an average of 15h and 14min of daylight.
On the first day of June in Boston, Massachusetts, 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 Boston, 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 in Boston, Massachusetts. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 6 in June interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in June in Boston?

In June, the average relative humidity is 74%.

How many days does it rain in June in Boston?

In Boston, during June, the rain falls for 13.6 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Boston?

June through September are months without snowfall in Boston.

Does it snow in Boston in June?

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

What is the water temperature in June in Boston?

In June, the average ocean temperature is 58.5°F (14.7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

When are the longest days in Boston?

June has the longest days of the year in Boston, with an average of 15h and 14min of daylight.

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

In Boston, Massachusetts, the average day length in June is 15h and 14min.

What time are sunrise and sunset in June in Boston?

On the first day of June in Boston, 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 many hours of sunshine does Boston have in June?

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

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

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

How high is the UV index in June in Boston?

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 Sun's UV rays.

Average temperature in June
Boston, MA

Average temperature in June - Boston, 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
Boston, MA

Average pressure in June - Boston, MA
  • Average pressure in June: 29.93"

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

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Average wind speed in June
Boston, MA

Average wind speed in June - Boston, 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
Boston, MA

Average humidity in June - Boston, 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
Boston, MA

Average rainfall in June - Boston, 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
Boston, MA

Average rainfall days in June - Boston, 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
Boston, MA

Average snowfall in June - Boston, 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
Boston, MA

Average snowfall days in June - Boston, 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
Boston, MA

Average sea temperature in June - Boston, 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
Boston, MA

Average daylight in June / Average sunshine in June - Boston, MA
  • Average daylight in June: 15h and 14min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in June: 9.1h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in June
Boston, MA

Average sunshine days in June - Boston, 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
Boston, MA

Average UV index in June - Boston, 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
Boston, MA

Average cloud cover in June - Boston, 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
Boston, MA

Average visibility in June - Boston, 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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