June weather forecast
Belfast, ME

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Weather in June

The first month of the summer, June, is an enjoyable month in Belfast, Maine, with an average temperature fluctuating between 66.7°F (19.3°C) and 50.7°F (10.4°C).

Temperature

In Belfast, the average high-temperature in June marginally rises from a moderate 59.7°F (15.4°C) in May to a comfortable 66.7°F (19.3°C). The average low-temperature, in Belfast, is 50.7°F (10.4°C).

Humidity

In June, the average relative humidity is 82%.

Rainfall

In June, the rain falls for 14.8 days. Throughout June, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 141.1 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

In Belfast, Maine, snow does not fall in June through September.

Ocean temperature

In Belfast, the average seawater temperature in June is 52°F (11.1°C).
Note: Swimming in 52°F (11.1°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The month with the longest days in Belfast is June, with an average of 15h and 29min of daylight.
On the first day of the month, sunrise is at 4:54 am and sunset at 8:13 pm. On the last day of June, in Belfast, sunrise is at 4:54 am and sunset at 8:24 pm EDT.

Sunshine

In Belfast, Maine, the average sunshine in June is 8.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in June transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in June in Belfast?

In Belfast, in June, the average high-temperature is 66.7°F (19.3°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in June in Belfast?

In June, the average relative humidity in Belfast is 82%.

How much does it rain in Belfast in June?

In Belfast, Maine, in June, during 14.8 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Belfast?

June through September are months without snowfall.

Does it snow in Belfast in June?

In June, in Belfast, it doesn't snow. May is the latest month when it typically snows.

What is the ocean temperature in June in Belfast?

In Belfast, in June, the average water temperature is 52°F (11.1°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

When are the longest days in Belfast?

The month with the longest days in Belfast, Maine, is June, with an average of 15h and 29min of daylight.

What is the average length of the day in June in Belfast?

In June, the average day length in Belfast, Maine, is 15h and 29min.

When is the sunrise / sunset in June in Belfast?

On the first day of June in Belfast, Maine, sunrise is at 4:54 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 8:24 pm EDT.

How long on average sun shines in June in Belfast?

In June, the average sunshine duration in Belfast is 8.3h.

When is the highest UV index in Belfast?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Belfast, Maine.

What is the UV index reading in June in Belfast?

In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJuneJASOND
May
June
Jul
Average high temperature
59.7°F 15.4°C
66.7°F 19.3°C
73.9°F 23.3°C
Average low temperature
43.9°F 6.6°C
50.7°F 10.4°C
57.7°F 14.3°C
Average pressure
29.99" 762mmHg
29.91" 760mmHg
29.93" 760mmHg
Average wind speed
7.6mph 12.2km/h
7mph 11.3km/h
6mph 9.7km/h
Average max. wind speed
8.2mph 13.2km/h
7.6mph 12.2km/h
6.6mph 10.6km/h
Average wind speed gusts
12mph 19.3km/h
11.2mph 18km/h
9.9mph 15.9km/h
Average humidity
80%
82%
83%
Average rainfall
2.05" 52mm
2.09" 53mm
1.46" 37mm
Average rainfall days
15.3
14.8
14.5
Average snowfall
0.35" 9mm
0" 0mm
0" 0mm
Average snowfall days
0.1
0
0
Average sea temperature
45.1°F 7.3°C
52°F 11.1°C
58.5°F 14.7°C
Average daylight
14h 49min
15h 29min
15h 8min
Average sunshine
7h 36min
8h 18min
9h 24min
Average sunshine days
13.7
13.6
14.7
Average UV index
4
5
5
Average cloud cover
51%
47%
41%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in June
Belfast, ME

Average temperature in June - Belfast, ME
  • Average high temperature in June: 66.7°F

The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in June: 50.7°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in June
Belfast, ME

Average pressure in June - Belfast, ME
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in June
Belfast, ME

Average wind speed in June - Belfast, ME
  • Average wind speed in June: 7mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in June
Belfast, ME

Average humidity in June - Belfast, ME
  • Average humidity in June: 82%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in June
Belfast, ME

Average rainfall in June - Belfast, ME
  • Average rainfall in June: 2.09"

The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").

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Average rainfall days in June
Belfast, ME

Average rainfall days in June - Belfast, ME
  • Average rainfall days in June: 14.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in June
Belfast, ME

Average snowfall in June - Belfast, ME
  • Average snowfall in June: 0"

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in June
Belfast, ME

Average snowfall days in June - Belfast, ME
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in June
Belfast, ME

Average sea temperature in June - Belfast, ME
  • Average sea temperature in June: 52°F

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

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Average daylight in June /
Average sunshine in June
Belfast, ME

Average daylight in June / Average sunshine in June - Belfast, ME
  • Average daylight in June: 15h and 29min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in June: 8h and 18min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in June
Belfast, ME

Average sunshine days in June - Belfast, ME
  • Average sunshine days in June: 13.6 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index in June
Belfast, ME

Average UV index in June - Belfast, ME
  • Average UV index in June: 5

The months with the highest UV index are June, July and August (UV index 5).
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
Belfast, ME

Average cloud cover in June - Belfast, ME
  • Average cloud cover in June: 47

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).

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Average visibility in June
Belfast, ME

Average visibility in June - Belfast, ME
  • Average visibility in June: 5mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

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