June weather forecastGrand Isle, ME
June
Weather in June
The first month of the summer, June, is a refreshing month in Grand Isle, Maine, with an average temperature ranging between min 47.3°F (8.5°C) and max 67.5°F (19.7°C).Temperature
June brings a slight increase in the average high-temperature, progressing from a moderate 58.8°F (14.9°C) in May to a still refreshing 67.5°F (19.7°C). In Grand Isle, an average temperature of 47.3°F (8.5°C) is noted during June nights.Humidity
In Grand Isle, the average relative humidity in June is 77%.Rainfall
In Grand Isle, in June, it is raining for 15.9 days, with typically 2.52" (64mm) of accumulated precipitation. In Grand Isle, during the entire year, the rain falls for 140.8 days and collects up to 30.12" (765mm) of precipitation.Snowfall
In Grand Isle, snow does not fall in June through September.Daylight
June has the longest days of the year, with an average of 15h and 54min of daylight.On the first day of June, sunrise is at 4:39 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 4:40 am and sunset at 8:32 pm EDT.
Sunshine
In June, the average sunshine is 8.4h.UV index
June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In June, the maximum UV index of 5 suggests these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Grand Isle, ME
- Average high temperature in June: 67.5°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in June: 47.3°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in June
Grand Isle, ME
- Average pressure in June: 29.88"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in June
Grand Isle, ME
- Average wind speed in June: 6.8mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in June
Grand Isle, ME
- Average humidity in June: 77%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in June
Grand Isle, ME
- Average rainfall in June: 2.52"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in June
Grand Isle, ME
- Average rainfall days in June: 15.9 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in June
Grand Isle, ME
- Average snowfall in June: 0"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Grand Isle, ME
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Grand Isle, ME
- Average daylight in June: 15h and 54min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in June: 8h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in June
Grand Isle, ME
- Average sunshine days in June: 12.7 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in June
Grand Isle, ME
- Average UV index in June: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in June
Grand Isle, ME
- Average cloud cover in June: 47
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in June
Grand Isle, ME
- Average visibility in June: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).





