June weather forecast
Chatham, MA

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The calm blue water and white sand on a typical beach in Cape Cod, with a visible path and a far view of the high Chatham Lighthouse, Massachusetts
The calm blue water and white sand on a typical beach in Cape Cod, with a visible path and a far view of the high Chatham Lighthouse, Massachusetts

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 June arrives, Chatham's weather shows a minor increase in high-temperatures, edging from May's cool 54.3°F (12.4°C) to an enjoyable 63°F (17.2°C). During the month of June, Chatham identifies an average nighttime low-temperature of 58.8°F (14.9°C), slightly lower than its daytime counterpart.

Humidity

The months with the highest humidity in Chatham are June and July, with an average relative humidity of 85%.

Rainfall

In June, in Chatham, Massachusetts, the rain falls for 13.4 days. Throughout June, 1.69" (43mm) of precipitation is accumulated. 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 in Chatham.

Ocean temperature

In June, the average ocean temperature is 56.7°F (13.7°C).
Note: Beware when you're in 56.7°F (13.7°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.

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 5:07 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 in Chatham is 9.4h.

UV index

In June, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 5 in June translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What are the temperatures in Chatham in June?

In June, the average high-temperature and low-temperature in Chatham are 63°F (17.2°C) and 58.8°F (14.9°C) respectively.

What is the most humid month in Chatham?

The months with the highest humidity in Chatham are June and July, with an average relative humidity of 85%.

What is the average humidity in June in Chatham?

The average relative humidity in June in Chatham, Massachusetts, is 85%.

How much does it rain in Chatham in June?

In Chatham, in June, during 13.4 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow in Chatham?

In Chatham, Massachusetts, snow does not fall in May through October.

What is the ocean temperature in June in Chatham?

In Chatham, the average seawater temperature in June is 56.7°F (13.7°C). Swimming in 56.7°F (13.7°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.

When are the longest days in Chatham?

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

How many hours of daylight does Chatham have in June?

In June, the average day length in Chatham, Massachusetts, is 15h and 9min.

What time are sunrise and sunset in June in Chatham?

In June, on the first day of the month, 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.

How many hours of sunshine does Chatham have in June?

In Chatham, the average sunshine duration in June is 9.4h.

How high is the UV index in June in Chatham?

The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJuneJASOND
May
June
Jul
Average high temperature
54.3°F 12.4°C
63°F 17.2°C
70.3°F 21.3°C
Average low temperature
50.5°F 10.3°C
58.8°F 14.9°C
67.1°F 19.5°C
Average pressure
30.02" 763mmHg
29.93" 760mmHg
29.96" 761mmHg
Average wind speed
13.2mph 21.2km/h
12.4mph 20km/h
11.6mph 18.7km/h
Average max. wind speed
14mph 22.5km/h
13.1mph 21.1km/h
12.3mph 19.8km/h
Average wind speed gusts
24.2mph 38.9km/h
22.7mph 36.5km/h
21mph 33.8km/h
Average humidity
84%
85%
85%
Average rainfall
1.81" 46mm
1.69" 43mm
1.73" 44mm
Average rainfall days
14.6
13.4
13.8
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
48.3°F 9.1°C
56.7°F 13.7°C
65.2°F 18.4°C
Average daylight
14h 4min
15h 1min
14h 5min
Average sunshine
8h 2min
9h 2min
10h 3min
Average sunshine days
14.8
15.7
16.4
Average UV index
4
5
6
Average cloud cover
45%
37%
30%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in June
Chatham, MA

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).

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Average pressure in June
Chatham, MA

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).

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Average wind speed in June
Chatham, MA

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).

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Average humidity in June
Chatham, MA

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%).

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Average rainfall in June
Chatham, MA

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").

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Average rainfall days in June
Chatham, MA

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).

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Average snowfall in June
Chatham, MA

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").

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Average snowfall days in June
Chatham, MA

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).

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Average sea temperature in June
Chatham, MA

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).

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

Average daylight in June / Average sunshine in June - Chatham, 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 12min).

  • Average sunshine in June: 9h and 2min

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).

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Average sunshine days in June
Chatham, MA

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).

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Average UV index in June
Chatham, MA

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).

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Average cloud cover in June
Chatham, MA

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).

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Average visibility in June
Chatham, MA

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).

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Chatham, Massachusetts, USA

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