June weather forecast
Hyannis, MA

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Weather in June

June weather in Hyannis is characterized by a significant escalation in temperatures - both on land and sea. An appreciable shift in climate is observed from the milder conditions of May. Humidity escalates in June, reaching up to 83% relative humidity. The city begins to experience more daylight hours and increased sunshine, extending the duration of outdoor activities. The progression towards a summer climate is marked by an absence of snowfall and increase in UV index.

Temperature

A minor escalation in the average high-temperature is seen with the onset of June, moving from a mild 55.4°F (13°C) in May to an enjoyable 63.9°F (17.7°C). Hyannis sees a minor drop to an average minimum temperature of 59.4°F (15.2°C) during the night in the month of June.

Humidity

In June, the average relative humidity is 83%.

Rainfall

In Hyannis, in June, it is raining for 12.9 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Hyannis, there are 157.2 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

Snowfall

In Hyannis, snow does not fall in May through November.

Ocean temperature

In Hyannis, in June, the average water temperature is 57.7°F (14.3°C).
Note: With the appropriate swimsuit, one can swim in 57.7°F (14.3°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.

Daylight

June has the longest days of the year in Hyannis, Massachusetts, with an average of 15h and 6min of daylight.
On the first day of June, sunrise is at 5:08 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 8:19 pm EDT.

Sunshine

In June, the average sunshine is 9.5h.

UV index

In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during June leads to these advisories:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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.
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Frequently asked questions

What are June temperatures in Hyannis?

During June, Hyannis experiences an average high-temperature of 63.9°F (17.7°C) and a low-temperature of 59.4°F (15.2°C).

What is the average humidity in June in Hyannis?

The average relative humidity in June in Hyannis is 83%.

How much does it rain in Hyannis in June?

In Hyannis, in June, it is raining for 12.9 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Hyannis?

May through November are months without snowfall in Hyannis, Massachusetts.

How cold is the water in June in Hyannis?

In June, the average ocean temperature in Hyannis, Massachusetts, is 57.7°F (14.3°C). Swimming in 57.7°F (14.3°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 in Hyannis?

June has the longest days of the year in Hyannis, Massachusetts, with an average of 15h and 6min of daylight.

How many hours of daylight does Hyannis have in June?

The average day length in June in Hyannis, Massachusetts, is 15h and 9min.

When is the sunrise / sunset in June in Hyannis?

In June, on the first day of the month, sunrise is at 5:08 am and sunset at 8:09 pm. On the last day of the month, in Hyannis, Massachusetts, sunrise is at 5:10 am and sunset at 8:19 pm EDT.

How long on average sun shines in June in Hyannis?

In Hyannis, Massachusetts, the average sunshine duration in June is 9.5h.

How high is the UV index in June in Hyannis?

In June, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to 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
Hyannis, MA

Average temperature in June - Hyannis, MA
  • Average high temperature in June: 63.9°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in June: 59.4°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 (30.4°F).

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Average pressure in June
Hyannis, MA

Average pressure in June - Hyannis, 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
Hyannis, MA

Average wind speed in June - Hyannis, MA
  • Average wind speed in June: 11.4mph

The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).

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Average humidity in June
Hyannis, MA

Average humidity in June - Hyannis, MA
  • Average humidity in June: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in June
Hyannis, MA

Average rainfall in June - Hyannis, MA
  • Average rainfall in June: 2.24"

The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").

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Average rainfall days in June
Hyannis, MA

Average rainfall days in June - Hyannis, MA
  • Average rainfall days in June: 12.9 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall in June
Hyannis, MA

Average snowfall in June - Hyannis, MA
  • Average snowfall in June: 0"

The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").

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Average snowfall days in June
Hyannis, MA

Average snowfall days in June - Hyannis, MA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (7.1 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
Hyannis, MA

Average sea temperature in June - Hyannis, MA
  • Average sea temperature in June: 57.7°F

The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

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

Average daylight in June / Average sunshine in June - Hyannis, MA
  • Average daylight in June: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in June: 9h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in June
Hyannis, MA

Average sunshine days in June - Hyannis, MA
  • Average sunshine days in June: 15.1 days

The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).

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Average UV index in June
Hyannis, MA

Average UV index in June - Hyannis, 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
Hyannis, MA

Average cloud cover in June - Hyannis, MA
  • Average cloud cover in June: 36

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in June
Hyannis, MA

Average visibility in June - Hyannis, 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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Hyannis, Massachusetts, USA

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