June weather forecastChatham, MA
June
Weather in June
Chatham's June weather marks the onset of summer, characterized by warm temperatures and extended daylight hours. The temperature moves towards a balmy 63°F (17.2°C) as the highest average in the month underscoring the arrival of summer. The season is typically identified by a relatively low humidity, longer days, and a decrease in rainfall, offering respite from the spring showers. Sun lovers will particularly adore June, with long periods of daylight and the highest index of sunshine hours. As June gives way to July, these summer characteristics only become more prominent, reaching their peak in the heart of the season.Temperature
As May transitions into June, Chatham notices a gentle rise in the average high-temperature, transitioning from a cool 54.3°F (12.4°C) to a comfortable 63°F (17.2°C). The June nights show a slight decrease to a mean low-temperature of 58.8°F (14.9°C).Humidity
June and July, with an average relative humidity of 85%, are the most humid months.Rainfall
In Chatham, in June, it is raining for 13.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Chatham, during the entire year, the rain falls for 142.4 days and collects up to 22.09" (561mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In Chatham, in June, the average water temperature is 56.7°F (13.7°C).Note: It is life-risking to swim in 56.7°F (13.7°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
June has the longest days of the year, with an average of 15h and 12min of daylight.On the first day of June, sunrise is at 5:07 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in June is 9.4h.UV index
The average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during June translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Chatham, MA
- Average high temperature in June: 63°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
- Average low temperature in June: 58.8°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in June
Chatham, 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
Chatham, MA
- Average wind speed in June: 12.4mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in June
Chatham, MA
- Average humidity in June: 85%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in June
Chatham, MA
- Average rainfall in June: 1.69"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in June
Chatham, MA
- Average rainfall days in June: 13.4 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in June
Chatham, MA
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Chatham, MA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in June
Chatham, MA
- Average sea temperature in June: 56.7°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (39.8°F).
Average daylight in June /
Average sunshine in June
Chatham, 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 12min).
- Average sunshine in June: 9h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in June
Chatham, MA
- Average sunshine days in June: 15.7 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index in June
Chatham, MA
- Average UV index in June: 5
The months with the highest UV index are 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
Chatham, MA
- Average cloud cover in June: 37
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in June
Chatham, 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).
