June weather forecastSullivan, ME
June
Weather in June
The first month of the summer, June, is a refreshing month in Sullivan, Maine, with an average temperature ranging between min 51.4°F (10.8°C) and max 66°F (18.9°C).Temperature
The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a mild 58.6°F (14.8°C) to a still refreshing 66°F (18.9°C). Sullivan encounters a steady low-temperature average of 51.4°F (10.8°C) throughout the month of June.Humidity
The average relative humidity in June is 79%.Rainfall
In Sullivan, in June, during 13.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 142.1 rainfall days, and 32.28" (820mm) of precipitation is accumulated.Snowfall
In Sullivan, snow does not fall in June through September.Ocean temperature
In June, the average ocean temperature is 49.5°F (9.7°C).Note: It is life-risking to swim in 49.5°F (9.7°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
With an average of 15h and 30min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 4:50 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 4:51 am and sunset at 8:21 pm EDT.
Sunshine
In Sullivan, the average sunshine in June is 8.6h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 5 in June transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Sullivan, ME
- Average high temperature in June: 66°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in June: 51.4°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in June
Sullivan, 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).
Average wind speed in June
Sullivan, ME
- Average wind speed in June: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in June
Sullivan, ME
- Average humidity in June: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in June
Sullivan, ME
- Average rainfall in June: 2.6"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days in June
Sullivan, ME
- Average rainfall days in June: 13.8 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in June
Sullivan, ME
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Sullivan, ME
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in June
Sullivan, ME
- Average sea temperature in June: 49.4°F
The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38°F).
Average daylight in June /
Average sunshine in June
Sullivan, ME
- Average daylight in June: 15h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in June: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in June
Sullivan, ME
- Average sunshine days in June: 14.3 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in June
Sullivan, 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).
Average cloud cover in June
Sullivan, ME
- Average cloud cover in June: 44
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in June
Sullivan, ME
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





