June weather forecastBoston, MA
June
Weather in June
For Boston, June marks the onset of summer. The weather becomes warmer than that witnessed in May, and temperatures continue to climb. The city experiences a high of 74.3°F (23.5°C) and a low of 57.6°F (14.2°C). The extended daylight hours cater to evening gatherings, park outings, and barbecues. June is also a popular time for tourists due to the numerous summer events and festivals that take place.Temperature
As Boston welcomes June, the average high-temperature displays a subtle shift, adjusting from an enjoyable 66.4°F (19.1°C) in May to a moderately hot 74.3°F (23.5°C). In June, Boston's temperature tends to fall to an average low of 57.6°F (14.2°C) during the night.Humidity
In Boston, the average relative humidity in June is 74%.Rainfall
In Boston, Massachusetts, during June, the rain falls for 13.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Boston, during the entire year, the rain falls for 141.4 days and collects up to 27.2" (691mm) of precipitation.Snowfall
In Boston, snow does not fall in June through September.Ocean temperature
In June, the average ocean temperature is 58.5°F (14.7°C).Note: To swim in 58.5°F (14.7°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
The month with the longest days is June, with an average of 15h and 12min of daylight.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 5:11 am and sunset at 8:25 pm EDT.
Sunshine
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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during June leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in June
Boston, 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
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).
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%).
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").
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).
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").
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).
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).
Average daylight in June /
Average sunshine in June
Boston, MA
- Average daylight in June: 15h and 12min
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 6min
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
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).
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).
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).
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).
