May weather forecastVinalhaven, ME
May weather for Vinalhaven, Maine: In Vinalhaven, Maine, during May, the rain falls for 10.9 days and regularly aggregates up to 0.75" (19mm) of precipitation. May, the last month of the spring in Vinalhaven, is a cool month, with an average temperature fluctuating between 46.2°F (7.9°C) and 50.7°F (10.4°C).
May
Weather in May
May, the last month of the spring in Vinalhaven, is a cool month, with an average temperature fluctuating between 46.2°F (7.9°C) and 50.7°F (10.4°C).Temperature
As Vinalhaven enters May, the average high-temperature marginally increases from the a frosty 44.1°F (6.7°C) of April to a fresh 50.7°F (10.4°C). Vinalhaven documents a consistent average low-temperature of 46.2°F (7.9°C) at night during May.Humidity
The average relative humidity in May in Vinalhaven is 84%.Rainfall
In Vinalhaven, during May, the rain falls for 10.9 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 109.9 rainfall days, and 9.72" (247mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In Vinalhaven, Maine, in May, the average water temperature is 44.4°F (6.9°C).Note: Swimming in 44.4°F (6.9°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In May, the average length of the day in Vinalhaven is 14h and 46min.On the first day of May, sunrise is at 5:25 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 4:55 am and sunset at 8:11 pm EDT.
Sunshine
In Vinalhaven, the average sunshine in May is 8.2h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 4 in May leads to these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Vinalhaven, ME
- Average high temperature in May: 50.7°F
The warmest month (with the highest average high temperature) is August (65.7°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Vinalhaven, ME
- Average pressure in May: 30"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 May
Vinalhaven, ME
- Average wind speed in May: 12.3mph
The windiest month (with the highest average wind speed) is January (19.4mph).
The calmest months (with the lowest average wind speed) are July and August (10.3mph).
Average humidity in May
Vinalhaven, ME
- Average humidity in May: 84%
The months with the highest relative humidity are June, July and August (86%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
Vinalhaven, ME
- Average rainfall in May: 0.75"
The wettest months (with the highest rainfall) are October and November (1.02").
The driest months (with the least rainfall) are August and September (0.55").
Average rainfall days in May
Vinalhaven, ME
- Average rainfall days in May: 10.9 days
The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in May
Vinalhaven, ME
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Vinalhaven, ME
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in May
Vinalhaven, ME
- Average sea temperature in May: 44.5°F
The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in May /
Average sunshine in May
Vinalhaven, ME
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in May
Vinalhaven, ME
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in May
Vinalhaven, ME
- Average UV index in May: 4
The months with the highest UV index are 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 May
Vinalhaven, ME
- Average cloud cover in May: 46
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Vinalhaven, ME
- Average visibility in May: 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).





