June weather forecast
Onset, MA

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Weather in June

June, the first month of the summer in Onset, is a refreshing month, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 58.5°F (14.7°C).

Temperature

With the beginning of June, Onset's average high-temperature sees a minor increase, transitioning from a moderate 59.5°F (15.3°C) in May to an enjoyable 67.6°F (19.8°C). June sees the temperature falling to a mean low of 58.5°F (14.7°C).

Humidity

The months with the highest humidity in Onset are June and July, with an average relative humidity of 81%.

Rainfall

In Onset, Massachusetts, in June, during 14.7 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Onset, during the entire year, the rain falls for 157.4 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

May through September are months without snowfall in Onset.

Ocean temperature

In Onset, in June, the average water temperature is 58.6°F (14.8°C).
Note: In 58.6°F (14.8°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).

Daylight

The month with the longest days is June, with an average of 15h and 12min of daylight.
On the first day of the month, sunrise is at 5:09 am and sunset at 8:11 pm. On the last day of June, sunrise is at 5:11 am and sunset at 8:21 pm EDT.

Sunshine

In Onset, the average sunshine in June is 9.5h.

UV index

The average daily maximum UV index in June in Onset is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In June, a daily maximum UV index of 5 leads to the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the average June temperature in Onset?

The high-temperature, in June, in Onset, is 67.6°F (19.8°C), while the low-temperature averages to 58.5°F (14.7°C).

What are the most humid months in Onset?

June and July, with an average relative humidity of 81%, are most humid months.

What is the average humidity in June in Onset?

In June, the average relative humidity is 81%.

How many days does it rain in June in Onset?

In Onset, Massachusetts, during June, the rain falls for 14.7 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Onset?

May through September are months without snowfall.

What is the ocean temperature in June in Onset?

In Onset, the average seawater temperature in June is 58.6°F (14.8°C). Swimming in 58.6°F (14.8°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 Onset?

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

How many hours of daylight does Onset have in June?

In June, the average day length in Onset is 15h and 10min.

When is the sunrise / sunset in June in Onset?

In June, on the first day of the month, sunrise is at 5:09 am and sunset at 8:11 pm. On the last day of the month, in Onset, sunrise is at 5:11 am and sunset at 8:21 pm EDT.

How long on average sun shines in June in Onset?

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

What is the UV index reading in June in Onset?

The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJuneJASOND
May
June
Jul
Average high temperature
59.5°F 15.3°C
67.6°F 19.8°C
75.6°F 24.2°C
Average low temperature
50.7°F 10.4°C
58.5°F 14.7°C
66.4°F 19.1°C
Average pressure
30.01" 762mmHg
29.93" 760mmHg
29.95" 761mmHg
Average wind speed
10.1mph 16.3km/h
9.4mph 15.1km/h
8.8mph 14.2km/h
Average max. wind speed
10.8mph 17.4km/h
10.1mph 16.3km/h
9.4mph 15.1km/h
Average wind speed gusts
17.7mph 28.5km/h
16.5mph 26.6km/h
15.3mph 24.6km/h
Average humidity
80%
81%
81%
Average rainfall
2.36" 60mm
2.52" 64mm
2.52" 64mm
Average rainfall days
15.8
14.7
16
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
50.4°F 10.2°C
58.6°F 14.8°C
66.2°F 19°C
Average daylight
14h 4min
15h 1min
14h 5min
Average sunshine
8h 4min
9h 3min
10h 3min
Average sunshine days
13.3
13.8
13.2
Average UV index
5
5
6
Average cloud cover
43%
37%
30%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in June
Onset, MA

Average temperature in June - Onset, MA
  • Average high temperature in June: 67.6°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in June: 58.5°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in June
Onset, MA

Average pressure in June - Onset, 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
Onset, MA

Average wind speed in June - Onset, MA
  • Average wind speed in June: 9.4mph

The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in June
Onset, MA

Average humidity in June - Onset, MA
  • Average humidity in June: 81%

The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).

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Average rainfall in June
Onset, MA

Average rainfall in June - Onset, MA
  • Average rainfall in June: 2.52"

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in June
Onset, MA

Average rainfall days in June - Onset, MA
  • Average rainfall days in June: 14.7 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).

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Average snowfall in June
Onset, MA

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

The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in June
Onset, MA

Average snowfall days in June - Onset, 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 and September (0 days).

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Average sea temperature in June
Onset, MA

Average sea temperature in June - Onset, MA
  • Average sea temperature in June: 58.6°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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

Average daylight in June / Average sunshine in June - Onset, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in June
Onset, MA

Average sunshine days in June - Onset, MA
  • Average sunshine days in June: 13.8 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in June
Onset, MA

Average UV index in June - Onset, 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
Onset, MA

Average cloud cover in June - Onset, MA
  • Average cloud cover in June: 37

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in June
Onset, MA

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

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